CAC LO~I QU~T

41 HAN LO Ly thuy6t cua qUlt ly tdm va huOng trve khOng Mae gl V()i bdm Iy tAm va hUbng

tllc Chung ehi khac nhau Mi d~ dhh dttbng ling Duong t6n thit ap I1C cue qU1llt bat dllu tv gtSe tQa dQ vi chfAu cao dja ly vtti neS tA kh6ng dang ksect (khOng kbpound co Pk 1293 kgm3 IJ 41)C con H20 00 PHZO = 1000 kgm3)

CAn ell vao ap suat mit QU11t t~o ra ta cbia tbanh cae lO~l sau

al q11t tnap lip deuron 1000 Nm2 (100 mm H20)

b) qUllt tnng ap din 3000 Nlm2 (300 mm H20)

c) qUllt call ap dn 10000 Nm2 (1000 mm H 20) CAn ell vio vbng quay ri~ng nN ta chin Chung thanh cae nhtim

a) qut quay chtm nN = 100 + 200i

b) qu~t quay vlta nN 200 + 600

c) qUft quay nbanh 7iN = 600 + 1200

d) qWJt quay d~c ilit nhanh nN 1200 + 4000 VOnI quay rU~ng dlfQc tinh thee c6ng thllc

nQ liN 13-- (41)H34 gt

tlOng do

n ~ vong qua) trye qubullt vgph

H - chi~u cao cQt tip (ftp hIe cua qut tinh b~ng mm ~O)

Q - lUll lU(fng mia qUllt mlls

Vbng quay rieng cua qu~t lA vong quay vlfi eheuro dl) t6i tiu no co 11tu lu~g 1 ms lip suit 30 mm H20 vI 3()3f4 $Igt 13

6 dAy ta de cp d~n hai 1011 q~t Ill qUljt 1y tam vA qUllt huang tr~c

Th6ng thllbng cbung but khOng khf a di~u ki(m khi quy6n Vi ~y ty sli nen eua chung IA m = 1t 002 + 11 va cri th(f bO qua

100

Cae dnh toan cda qu~t ding gi6ng nhl1 Ct bam iy tam va hl1Cfng tTyenC didM khlic lit

Pi laquo PHzo-Ap suIt cUa qu~t ltt H bAng tdng ap gnAt d~ng nAng Hd va lip 3ulft dnh H

t (b6 qua

ehiAu cao dia Iy) (42)

(43)

ro (44)

trong do

v~n USc khOng kh ella day misC2 -

Pz ~ sp suAt thOng khi 11 cita dlly do qut t$O ra Nm2

PI ~ lip $u4t khOng kht Ct clfamp hut do qU(lt 40 rat Nm2

P bull kh6i htQng Tillng cua kbClng khi kgml

g - gia tamp tnmg truang mez

HI - ciing chinh Hi t6ng ton thAt dnh c118 dtang 6ng m xem cOng thuc (421)

COng su~t d~t l~n trve eua qu~t 11 N dl1QC dnh thea Chng thllc

Pk-lmiddotQmiddotHN = kW (45)

IOOO~

troDg do

Q ~ htu lu~ng cUe qUft mJs

Hk bull ip suit Clla qultt tInh theo ehieu cao ~t chat khf m

Pk ~ kh6i lu~g ri4ng cUa chat khf b dieu ki~n lam vi~ cUll qU$t kgim3

g - gia t6c trQng trutfng me2

1 - M atS bi~u dlmg cua qUlft

~ = 60 + 75

Khi ta dlSi ap hIe eua chilt kh sang chi~u cao h mm HO thea di~u kj~n (4J) tabull

s~ cd cong thuc Hoh eOng sulaquot d$t len trw~ qu~t 1 47) (46)

98LQHN = bull kW (47)

lOOO~

trong do Q m3s H mmH20

41 cAe lAC TlNH s600 ellA QVAT

D~ Hnh 86 do Iii cae duiJng cong bieurou di6n quan hcent giila luu hSQng Q vai cac d~

107

htqng chw cao ~t ip H c6ng sulaquot N va bifu su~t 1 clla quet vdi s6 vOng quay khOng d61 n vgph

Hlnb 41 bit dl~n c4c de dnh a6 do cUa qut Pueuha ~ Bp ~ 5~

vb sit vong quay n 1470 vglph

DuCntg net li~n Iii etta qUft cO D 05 m duang net dlit lA cUll q cO D = 06 m

Dim lAm vi~ cua qut IA dim cAt nhau gitta dubng USn tbilt dul1ng 6ng H va dumg H

4) I)~C rtNH KHONG s6 00

D~c tinh khOng a6 ~o oon gQi

lit cae h~ s6 duqc xlic dinh tit nhung don vi gqi Ja cac 86 do (xem hlnh 42)

Don vi do~ cOn 891 It 56 do htu htqng KQt m3s

KQ =- SU m3s

~s=-- m 4

xDn U=- ms

60

(48)

~

JUlJIJ

IlJIJ

n 1410 vgpJ Ii

i

V

~ -shyI H

I~

- Vmiddot

l- Iimiddot

1 1-

V shyH I ~

shy- lt~

-

gt )

-shy ~yen

Ai ( I

-~ - f- 1)95

-bos ~

~ v jl=bull I

100lJ 2000 J()P)

oJ

41 50 kW 10

30

20

10

Hlnh 41 Cae d~ doh eua qu~L

Nu voi ch~ dQ lam vi~c ttfdng tv flU do dl1l1C cBc htll h1Qng eua cc qUilt b6ng nhau thOng qua vic au d1ng a6 do 0 (48 thl Wi III M so luu lufng Q

- QQ = - (49)

KQ

hay Q = QK (410)Q

V~i qUlLt iy tAm thl 86 do ccentt ap KI- 18 kg

Kli = pU -m51

(411)

H~ 06 ltlp Ive e~t lip I Ii H

H= shy (412) KH

hay I II = HKH (413)

86 do cling SUft KN bAng deh cua 96 do luu 1t1laquofng vjj sd do c(it ap

108

KN = KQKH psU3 W (414) H~ 86 c6ng SUlaquot IA

(415) hay Ii (416)

N = NIKN

n~u N 111 kW thl 1000N

N= (417)

Th~ng qua cae M 86 kh6ng 86 do cd th xtic dnh h~ 56 bi~ dlng cUa qU3t (hay OOtn)

QH ~=- (418)

N

Vu ditlm Cd han cua cac hf s6 khtmg sli do tA dlinh gi8 ~c dnh ella q~t (bdm) vCi It d~ lu(Jng Dd la cac M sO QvA H tl1ang Dug vOi M 86 bitu dlng Ion nhlt Khi ChQD

1 N

If as

QJ

U

iJ

z= 11 Ll - 4fJQMm

J n 9UO tlJoovgh

r- r-V tt

t f ~

___M

P I 0 Z

0shy ~ f t

1 L

t II

fl r- it i ~1-

I I 1

J I Pil ~

f-j i-tshy -l I 1-

-

~

I

f-i Hr I

RInk 42 Ck d4e tinh kbOng s6 do cUll qUIlt

109

qu~t (bam) lAm vitc b eM dcent t6i uu cO hiu htl1ng va ccentt ap mong mu6n thl chi ebn chcul d1XCng klnh vi 56 vong quay cua gullng dcentng It diL

Vdi khOng khpound cd PI = 2 kglm3 ap suAt 760 mm Hg nhl~ dcent 200C dl) m tuengj

dOl 5amp1 thl dulttng )dnh va s6 vOng quay cua qu~t 1ft O6672K )j

D = V bull mj Kill

(419)Kt n 813 -w vgph

KQ

44 TltNG IlN ellA QUjT

Tilng on cua quat cO hai dmg Is on khi dcentng va on co hqe

441 On khi dng

On khf dQng sinh ta do cae chi tiKt khlic nhau cua qWJt tae dcentng I~n chuyeuron dOeng eua dbng khL Yu ttS chlnh gAy ~n khi dt)ng Ja ~n t6c vbng Ibn vi cuitng dcent bn tt l~ b$c sau vdi $ Me b$c hal vai 86 do tuy6n deh ella caub vA ~c hal vifi sdc cln dinh cnh y~u t6 thtl hat 11 dng unh d$ng thAn yo) qUl~t s6 canh cheuro dQ lam vl~ cua qu~t va du tr6c buong d1lt qut Tihg ~n sinh ra do chuyfn dng xoay eua thOng khf v6i gu~ng dcentng ~o nen cae song khOng- khi va rung dlng ella Clic ~ ph~n KhOng kht iii qua cua hutt canh huOng dong (nu co) di qua ella ra ella v6 cung t$O xoay va gAy hn

Canh eong vl phfa truoc on nhi~u hon cong va gau

442 On hllC

Dl) vfrng ehac cda dnh qUftt an it hdn (due canh Jil1n voi bhu)

Hlu h~t qu~t lap cOngxon viii trve ~n ti~ng 1In Urn neurou cAn bAng d~ng kh6ng t6t

Ti~ng tm ebn do cae is hi gay Ta do dl)ng 00 gly ra

Mu6n tninh tieurong in (h~n eM den mdc tbap nh4t) CUR qu~t va h~ th6ng chn I~i bO h41 nguyAn nMn giiy on nhu

bull ~nh qilQt nlm cong v san (ntu 00 thd)~ n t6c gio trong cae 6ng din nAn nha gu~ng dOng phAi dUQc cAn bang tlnh vii dl)ng t6t kh6ng n6i cdng dllbng 6ng wi vo qUft vo (thAn) qUllt phlii vung chc

- cae 6 da pbAi 18 6 t111IJt (kh6ng dung e bO s6 vbng quay cua QU4t n~n chQn nhd (niu eO thl1) vn too kh6ng kM trong qU4t clog nho clng tOt

middot gifta deuro qut va mong eftn d$m cansu v v

Thea ti~u chun cua Nga thl v$n too vong b dtfbng kfnh ngoai eua gubng d~ng (hO$c duang kfnh dinh canh) duc$c quy dlnh nhU fl8U

bull vOl q~t hUdng trvc tit 80 deuron 100 mJs

110

vOi qU(lt Iy tam IS 50 ms

v$n too gi6 trong ling dAn 18 5 ms

Q~t cO tM h~t dOng tTong h~ th6ng hut dy~ vitabllt vUQ dfy T6t nhlaquot vin lA cheuro dl) dy vi v$y nwj nai m9i eM neurou cd thl dUQc non ch~ qwrt lAm vi~ d cheuro dO dfy

45 Illtu CHiNK QUjoT

De dieu chinh qUlt ta dln bi~t C1l th~ q~t Iltm vi~ trong ht th6ng but dlty hay vita htlt vita dAy

Hinh 43 th~ hi~n nguy~n Ij du to w h~t dcentcng cue h$ thlSng q~t hut

pbullbull tip $~t khi quyeuron

p b ~ ltip 8Uat ~ cUe hut cUe guang d~ng

Pd - ap suat tli cUe ddy cUa guoog d~ng

Hd ~ t6n that tip lfc dng nAng ~ mitng hdt

d bull ~n thAt dQng nAng a cUQ dy

Ho - tlSn thlaquot tm II1C duilng 6ng

HI ton that tro IIC Hnh

Hmiddot tong t6n that tro hie (cilng 18 ap htcmlll qu~t phAi cO)

H = ~ + HI + H d mm H20 (420)

-

Hinh 43 Q~t JAm vi~e lJ ell d~ htlt

Mu6n giAm ton that d~ng nang H bull lJ clia dlly e~a h~ th6ng qut hut phil lam do~n 6ng loe de giAnt vfn USc dong khl xu6ng eOn 30 den 26~ vtn t6c dlu Ode loe gQi 11 a = 10deg Tit do tfnh dQ dai eua d~n 6ng loe d(n~n lthulaquoch tan)

III

I WpH = (1- + ) - (421)

I d ~ 2

trong do

t - ht 86 ma sat giOa htu th4 vdi thAnh 6ng

I d - chi~ dAl duttng Mnb 6ng dan m

L~ t5ng t1O hje CIlC bQ tren 6ng hut

W - v$n t6c dong htu th~ di trong 6ng ms

p bull kMi )ultlDg rlfng cd h1U tM kglm

H t citng eO tM tInh tit cOng thdc

H = LIn + LZ mmHo (422)

trong do

l - chf~u lttAt CUS do~ 6ng cO cung dubng kfnh m

R - h4 96 ma sat t~n m6i met 6ng ph thu(lc viW tift di~n fing va tun IUc1ng mmHO

cua khl (xem blnh 416) --- W2p m

Z ~ - mmHZO (423)2

H(J vi Hd tInh theo cang thdc (43)

l a --t $1 -

~

H~ ~ iif

I

bull ~

1

Hlnh 44 QUat lam vi~c bull eM d~ deuroy

cong sullt eua qUl)t dnb theo cOng thdc (47)

Hlnh 44 th~ hi~n ngu~n Ij efu ~o cua M th6ng qUlJt d8y Chi~u can cOt ap H du)c dnh thea cOng thdc

Ii = + HI mmIizO (424)H t

112

HI vl Hd ciing tfnh htdng ti nhu h th6ng qu~t hut Cong sullt ciing dnh tuong tl nhtt cOng thdc (47)

Fa == Ph - lip su(t khf quy~n bAng lip su1t hut

Pd - ap suat dy

(4lt25)

co nhi~u trubng hqp qUl(lt lim vi~ vlsi eh~ dl vila dty vua but Cae phep thh cung tUdng t~ nhu t[6n vii tfnh ci hai phla

Di~ chJnh hlu htl1ng Cllft qut 00 tM bang cae each sau dung van they d6i 86 vOng quay cblnh g6c nghi6ng cue canlt gu~ng hay chb ella bO din huang (nlaquou cO tbsect)

a) lJilu chinh btu lUQng bang van DAy la phuong pbap don giln nltt titu 11 vi vy no dU11c dug dllDg ~ng rAL Van

cO th6 dtt (J 6ng dlty hay 6ng hut Dtt a 6ng hilt thi nnh teuro hon Khi dong 116t hay md tUm van MInh ltl lam thay ddi dubng dtc tInb tlSn tMt H d djch chu~n di6m lAmt vi~ cUB q~t nhu vty tre ct$ htu JUQng vi ecentt ap thay d6i

b) Dilu chink bang thay ddi so vong quay DAy III phuong phlip kinh teuro nUt nhung cAn cd d)ng C(f thay dlSi v4n t6c holC bQ

truy~i1 d)ng cd thit thay dtSi dt~c 56 vbng quay cUa qut c) Thay ddt bAng di~u chlnh c6nh httdng dong

B~ canh nay thuang d~t d cua hut cua qut

HKhi ch~ tl10 dA lAm cho nd cd khA DAng toay dUQC khj cAn Phuong phlip nAy cling kinh teuro vA thulJng duQc tip dyng A

trong cOng nghi~p

Ph~ang phap nAy chlnh III Illm thay d6i dQ doc cue duang dlc tlnh Q ~ H (xem Hz--shyWoo 4lt5)lt

Dtlllng Q - H bay d6i dQ d6c khi s6 vbug quay gin nguy~n dilim A vln kh6ng Q -------0---

tz ttthay d6i

Nhlt vty dim lam vi~c cUa qUlt sa lit 1 h 2 dng vOi htu Juqng Q I ill c(lt Htnh 45 81 tbay d6i duong ~c dnh

khi dieu chinh qu~Lap H j gt Hz d) Di~u chinn hAng eltnh cua gklJng

d~ng

Chi ap dtmg dUltjc cho qu~t hlflmg trye va cfing pbru ch~ ~o trU(Jc df 00 tb dilu chlnh dutjc

u sl LAM vlEe SONG SONG vA N61 Tlip ellA QUAT

Qua trlnh lAm vi(tc song song bay niSi tieurop cua cae qut cOng gi6ng htt nhu cc bam

11~

__

5

f ~-----71( z

Hlnh 46 16 s1116m vi~c song song cda hal qu~t cO Ituimg dJc dnh khac nhau Trang truitng hQp nay eln ehu y ap hIe (chibu can cl)t ap) chung phli th4p h01l di4m A n~u cao hon thi qWJt eO dc tfnh thap 18 Q2 ~ H2 sa kh6ng cO htu IUJng nu)c du vAn quay Qut mQt dA th6r ~t qU-t bai

HH

b Q

Hinh 46 Dc dnh eua hai qut khac Hinh 47 Dtc tinh cUa hai qWJt nhau lAm vi~ song song gi6ng nhau JAm vic song song

Hlnh 47 Is Ill liim vi~c Oong song ella hai qUilt giling h~ nhau Neu d~ dnh III H thl khi lam vi~c song song se co hill IItt1ng nhi~u hem mcentt qut Neurou d$c tlnh t6n thlt lit H~ thi hai qu~t lam vifc song song cling chang nhieu hon m(tt qUlolt IS bao hhi~u Vi v~y n~n httang v~ dttctng H sfl kinh te han

47 CONG su(T DONG cO

Sao khi di dnh dUQc congo suit ctia qut lil N thl tbn uOng sulaquot d(tng co N d bullN

~-~ shy~

trong d6

N e6ng soat d~t Um ttI1C qu~t dnh thea di~u ki~n (47) kW

a ~ hlJ 56 tra bang (41)

I ~ h~ s6 hi$u d9ng truy~n d(mlr

1][ bull 1 bull truyen dcentng ttic tiep (t1lC cua dcentng Cd cung 11 cU3 q~t)

1 095 bAng khap m~m

III bull 09 b8ng dai thang

it = 085 bang dai dllt

114

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

Cae dnh toan cda qu~t ding gi6ng nhl1 Ct bam iy tam va hl1Cfng tTyenC didM khlic lit

Pi laquo PHzo-Ap suIt cUa qu~t ltt H bAng tdng ap gnAt d~ng nAng Hd va lip 3ulft dnh H

t (b6 qua

ehiAu cao dia Iy) (42)

(43)

ro (44)

trong do

v~n USc khOng kh ella day misC2 -

Pz ~ sp suAt thOng khi 11 cita dlly do qut t$O ra Nm2

PI ~ lip $u4t khOng kht Ct clfamp hut do qU(lt 40 rat Nm2

P bull kh6i htQng Tillng cua kbClng khi kgml

g - gia tamp tnmg truang mez

HI - ciing chinh Hi t6ng ton thAt dnh c118 dtang 6ng m xem cOng thuc (421)

COng su~t d~t l~n trve eua qu~t 11 N dl1QC dnh thea Chng thllc

Pk-lmiddotQmiddotHN = kW (45)

IOOO~

troDg do

Q ~ htu lu~ng cUe qUft mJs

Hk bull ip suit Clla qultt tInh theo ehieu cao ~t chat khf m

Pk ~ kh6i lu~g ri4ng cUa chat khf b dieu ki~n lam vi~ cUll qU$t kgim3

g - gia t6c trQng trutfng me2

1 - M atS bi~u dlmg cua qUlft

~ = 60 + 75

Khi ta dlSi ap hIe eua chilt kh sang chi~u cao h mm HO thea di~u kj~n (4J) tabull

s~ cd cong thuc Hoh eOng sulaquot d$t len trw~ qu~t 1 47) (46)

98LQHN = bull kW (47)

lOOO~

trong do Q m3s H mmH20

41 cAe lAC TlNH s600 ellA QVAT

D~ Hnh 86 do Iii cae duiJng cong bieurou di6n quan hcent giila luu hSQng Q vai cac d~

107

htqng chw cao ~t ip H c6ng sulaquot N va bifu su~t 1 clla quet vdi s6 vOng quay khOng d61 n vgph

Hlnb 41 bit dl~n c4c de dnh a6 do cUa qut Pueuha ~ Bp ~ 5~

vb sit vong quay n 1470 vglph

DuCntg net li~n Iii etta qUft cO D 05 m duang net dlit lA cUll q cO D = 06 m

Dim lAm vi~ cua qut IA dim cAt nhau gitta dubng USn tbilt dul1ng 6ng H va dumg H

4) I)~C rtNH KHONG s6 00

D~c tinh khOng a6 ~o oon gQi

lit cae h~ s6 duqc xlic dinh tit nhung don vi gqi Ja cac 86 do (xem hlnh 42)

Don vi do~ cOn 891 It 56 do htu htqng KQt m3s

KQ =- SU m3s

~s=-- m 4

xDn U=- ms

60

(48)

~

JUlJIJ

IlJIJ

n 1410 vgpJ Ii

i

V

~ -shyI H

I~

- Vmiddot

l- Iimiddot

1 1-

V shyH I ~

shy- lt~

-

gt )

-shy ~yen

Ai ( I

-~ - f- 1)95

-bos ~

~ v jl=bull I

100lJ 2000 J()P)

oJ

41 50 kW 10

30

20

10

Hlnh 41 Cae d~ doh eua qu~L

Nu voi ch~ dQ lam vi~c ttfdng tv flU do dl1l1C cBc htll h1Qng eua cc qUilt b6ng nhau thOng qua vic au d1ng a6 do 0 (48 thl Wi III M so luu lufng Q

- QQ = - (49)

KQ

hay Q = QK (410)Q

V~i qUlLt iy tAm thl 86 do ccentt ap KI- 18 kg

Kli = pU -m51

(411)

H~ 06 ltlp Ive e~t lip I Ii H

H= shy (412) KH

hay I II = HKH (413)

86 do cling SUft KN bAng deh cua 96 do luu 1t1laquofng vjj sd do c(it ap

108

KN = KQKH psU3 W (414) H~ 86 c6ng SUlaquot IA

(415) hay Ii (416)

N = NIKN

n~u N 111 kW thl 1000N

N= (417)

Th~ng qua cae M 86 kh6ng 86 do cd th xtic dnh h~ 56 bi~ dlng cUa qU3t (hay OOtn)

QH ~=- (418)

N

Vu ditlm Cd han cua cac hf s6 khtmg sli do tA dlinh gi8 ~c dnh ella q~t (bdm) vCi It d~ lu(Jng Dd la cac M sO QvA H tl1ang Dug vOi M 86 bitu dlng Ion nhlt Khi ChQD

1 N

If as

QJ

U

iJ

z= 11 Ll - 4fJQMm

J n 9UO tlJoovgh

r- r-V tt

t f ~

___M

P I 0 Z

0shy ~ f t

1 L

t II

fl r- it i ~1-

I I 1

J I Pil ~

f-j i-tshy -l I 1-

-

~

I

f-i Hr I

RInk 42 Ck d4e tinh kbOng s6 do cUll qUIlt

109

qu~t (bam) lAm vitc b eM dcent t6i uu cO hiu htl1ng va ccentt ap mong mu6n thl chi ebn chcul d1XCng klnh vi 56 vong quay cua gullng dcentng It diL

Vdi khOng khpound cd PI = 2 kglm3 ap suAt 760 mm Hg nhl~ dcent 200C dl) m tuengj

dOl 5amp1 thl dulttng )dnh va s6 vOng quay cua qu~t 1ft O6672K )j

D = V bull mj Kill

(419)Kt n 813 -w vgph

KQ

44 TltNG IlN ellA QUjT

Tilng on cua quat cO hai dmg Is on khi dcentng va on co hqe

441 On khi dng

On khf dQng sinh ta do cae chi tiKt khlic nhau cua qWJt tae dcentng I~n chuyeuron dOeng eua dbng khL Yu ttS chlnh gAy ~n khi dt)ng Ja ~n t6c vbng Ibn vi cuitng dcent bn tt l~ b$c sau vdi $ Me b$c hal vai 86 do tuy6n deh ella caub vA ~c hal vifi sdc cln dinh cnh y~u t6 thtl hat 11 dng unh d$ng thAn yo) qUl~t s6 canh cheuro dQ lam vl~ cua qu~t va du tr6c buong d1lt qut Tihg ~n sinh ra do chuyfn dng xoay eua thOng khf v6i gu~ng dcentng ~o nen cae song khOng- khi va rung dlng ella Clic ~ ph~n KhOng kht iii qua cua hutt canh huOng dong (nu co) di qua ella ra ella v6 cung t$O xoay va gAy hn

Canh eong vl phfa truoc on nhi~u hon cong va gau

442 On hllC

Dl) vfrng ehac cda dnh qUftt an it hdn (due canh Jil1n voi bhu)

Hlu h~t qu~t lap cOngxon viii trve ~n ti~ng 1In Urn neurou cAn bAng d~ng kh6ng t6t

Ti~ng tm ebn do cae is hi gay Ta do dl)ng 00 gly ra

Mu6n tninh tieurong in (h~n eM den mdc tbap nh4t) CUR qu~t va h~ th6ng chn I~i bO h41 nguyAn nMn giiy on nhu

bull ~nh qilQt nlm cong v san (ntu 00 thd)~ n t6c gio trong cae 6ng din nAn nha gu~ng dOng phAi dUQc cAn bang tlnh vii dl)ng t6t kh6ng n6i cdng dllbng 6ng wi vo qUft vo (thAn) qUllt phlii vung chc

- cae 6 da pbAi 18 6 t111IJt (kh6ng dung e bO s6 vbng quay cua QU4t n~n chQn nhd (niu eO thl1) vn too kh6ng kM trong qU4t clog nho clng tOt

middot gifta deuro qut va mong eftn d$m cansu v v

Thea ti~u chun cua Nga thl v$n too vong b dtfbng kfnh ngoai eua gubng d~ng (hO$c duang kfnh dinh canh) duc$c quy dlnh nhU fl8U

bull vOl q~t hUdng trvc tit 80 deuron 100 mJs

110

vOi qU(lt Iy tam IS 50 ms

v$n too gi6 trong ling dAn 18 5 ms

Q~t cO tM h~t dOng tTong h~ th6ng hut dy~ vitabllt vUQ dfy T6t nhlaquot vin lA cheuro dl) dy vi v$y nwj nai m9i eM neurou cd thl dUQc non ch~ qwrt lAm vi~ d cheuro dO dfy

45 Illtu CHiNK QUjoT

De dieu chinh qUlt ta dln bi~t C1l th~ q~t Iltm vi~ trong ht th6ng but dlty hay vita htlt vita dAy

Hinh 43 th~ hi~n nguy~n Ij du to w h~t dcentcng cue h$ thlSng q~t hut

pbullbull tip $~t khi quyeuron

p b ~ ltip 8Uat ~ cUe hut cUe guang d~ng

Pd - ap suat tli cUe ddy cUa guoog d~ng

Hd ~ t6n that tip lfc dng nAng ~ mitng hdt

d bull ~n thAt dQng nAng a cUQ dy

Ho - tlSn thlaquot tm II1C duilng 6ng

HI ton that tro IIC Hnh

Hmiddot tong t6n that tro hie (cilng 18 ap htcmlll qu~t phAi cO)

H = ~ + HI + H d mm H20 (420)

-

Hinh 43 Q~t JAm vi~e lJ ell d~ htlt

Mu6n giAm ton that d~ng nang H bull lJ clia dlly e~a h~ th6ng qut hut phil lam do~n 6ng loe de giAnt vfn USc dong khl xu6ng eOn 30 den 26~ vtn t6c dlu Ode loe gQi 11 a = 10deg Tit do tfnh dQ dai eua d~n 6ng loe d(n~n lthulaquoch tan)

III

I WpH = (1- + ) - (421)

I d ~ 2

trong do

t - ht 86 ma sat giOa htu th4 vdi thAnh 6ng

I d - chi~ dAl duttng Mnb 6ng dan m

L~ t5ng t1O hje CIlC bQ tren 6ng hut

W - v$n t6c dong htu th~ di trong 6ng ms

p bull kMi )ultlDg rlfng cd h1U tM kglm

H t citng eO tM tInh tit cOng thdc

H = LIn + LZ mmHo (422)

trong do

l - chf~u lttAt CUS do~ 6ng cO cung dubng kfnh m

R - h4 96 ma sat t~n m6i met 6ng ph thu(lc viW tift di~n fing va tun IUc1ng mmHO

cua khl (xem blnh 416) --- W2p m

Z ~ - mmHZO (423)2

H(J vi Hd tInh theo cang thdc (43)

l a --t $1 -

~

H~ ~ iif

I

bull ~

1

Hlnh 44 QUat lam vi~c bull eM d~ deuroy

cong sullt eua qUl)t dnb theo cOng thdc (47)

Hlnh 44 th~ hi~n ngu~n Ij efu ~o cua M th6ng qUlJt d8y Chi~u can cOt ap H du)c dnh thea cOng thdc

Ii = + HI mmIizO (424)H t

112

HI vl Hd ciing tfnh htdng ti nhu h th6ng qu~t hut Cong sullt ciing dnh tuong tl nhtt cOng thdc (47)

Fa == Ph - lip su(t khf quy~n bAng lip su1t hut

Pd - ap suat dy

(4lt25)

co nhi~u trubng hqp qUl(lt lim vi~ vlsi eh~ dl vila dty vua but Cae phep thh cung tUdng t~ nhu t[6n vii tfnh ci hai phla

Di~ chJnh hlu htl1ng Cllft qut 00 tM bang cae each sau dung van they d6i 86 vOng quay cblnh g6c nghi6ng cue canlt gu~ng hay chb ella bO din huang (nlaquou cO tbsect)

a) lJilu chinh btu lUQng bang van DAy la phuong pbap don giln nltt titu 11 vi vy no dU11c dug dllDg ~ng rAL Van

cO th6 dtt (J 6ng dlty hay 6ng hut Dtt a 6ng hilt thi nnh teuro hon Khi dong 116t hay md tUm van MInh ltl lam thay ddi dubng dtc tInb tlSn tMt H d djch chu~n di6m lAmt vi~ cUB q~t nhu vty tre ct$ htu JUQng vi ecentt ap thay d6i

b) Dilu chink bang thay ddi so vong quay DAy III phuong phlip kinh teuro nUt nhung cAn cd d)ng C(f thay dlSi v4n t6c holC bQ

truy~i1 d)ng cd thit thay dtSi dt~c 56 vbng quay cUa qut c) Thay ddt bAng di~u chlnh c6nh httdng dong

B~ canh nay thuang d~t d cua hut cua qut

HKhi ch~ tl10 dA lAm cho nd cd khA DAng toay dUQC khj cAn Phuong phlip nAy cling kinh teuro vA thulJng duQc tip dyng A

trong cOng nghi~p

Ph~ang phap nAy chlnh III Illm thay d6i dQ doc cue duang dlc tlnh Q ~ H (xem Hz--shyWoo 4lt5)lt

Dtlllng Q - H bay d6i dQ d6c khi s6 vbug quay gin nguy~n dilim A vln kh6ng Q -------0---

tz ttthay d6i

Nhlt vty dim lam vi~c cUa qUlt sa lit 1 h 2 dng vOi htu Juqng Q I ill c(lt Htnh 45 81 tbay d6i duong ~c dnh

khi dieu chinh qu~Lap H j gt Hz d) Di~u chinn hAng eltnh cua gklJng

d~ng

Chi ap dtmg dUltjc cho qu~t hlflmg trye va cfing pbru ch~ ~o trU(Jc df 00 tb dilu chlnh dutjc

u sl LAM vlEe SONG SONG vA N61 Tlip ellA QUAT

Qua trlnh lAm vi(tc song song bay niSi tieurop cua cae qut cOng gi6ng htt nhu cc bam

11~

__

5

f ~-----71( z

Hlnh 46 16 s1116m vi~c song song cda hal qu~t cO Ituimg dJc dnh khac nhau Trang truitng hQp nay eln ehu y ap hIe (chibu can cl)t ap) chung phli th4p h01l di4m A n~u cao hon thi qWJt eO dc tfnh thap 18 Q2 ~ H2 sa kh6ng cO htu IUJng nu)c du vAn quay Qut mQt dA th6r ~t qU-t bai

HH

b Q

Hinh 46 Dc dnh eua hai qut khac Hinh 47 Dtc tinh cUa hai qWJt nhau lAm vi~ song song gi6ng nhau JAm vic song song

Hlnh 47 Is Ill liim vi~c Oong song ella hai qUilt giling h~ nhau Neu d~ dnh III H thl khi lam vi~c song song se co hill IItt1ng nhi~u hem mcentt qut Neurou d$c tlnh t6n thlt lit H~ thi hai qu~t lam vifc song song cling chang nhieu hon m(tt qUlolt IS bao hhi~u Vi v~y n~n httang v~ dttctng H sfl kinh te han

47 CONG su(T DONG cO

Sao khi di dnh dUQc congo suit ctia qut lil N thl tbn uOng sulaquot d(tng co N d bullN

~-~ shy~

trong d6

N e6ng soat d~t Um ttI1C qu~t dnh thea di~u ki~n (47) kW

a ~ hlJ 56 tra bang (41)

I ~ h~ s6 hi$u d9ng truy~n d(mlr

1][ bull 1 bull truyen dcentng ttic tiep (t1lC cua dcentng Cd cung 11 cU3 q~t)

1 095 bAng khap m~m

III bull 09 b8ng dai thang

it = 085 bang dai dllt

114

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

htqng chw cao ~t ip H c6ng sulaquot N va bifu su~t 1 clla quet vdi s6 vOng quay khOng d61 n vgph

Hlnb 41 bit dl~n c4c de dnh a6 do cUa qut Pueuha ~ Bp ~ 5~

vb sit vong quay n 1470 vglph

DuCntg net li~n Iii etta qUft cO D 05 m duang net dlit lA cUll q cO D = 06 m

Dim lAm vi~ cua qut IA dim cAt nhau gitta dubng USn tbilt dul1ng 6ng H va dumg H

4) I)~C rtNH KHONG s6 00

D~c tinh khOng a6 ~o oon gQi

lit cae h~ s6 duqc xlic dinh tit nhung don vi gqi Ja cac 86 do (xem hlnh 42)

Don vi do~ cOn 891 It 56 do htu htqng KQt m3s

KQ =- SU m3s

~s=-- m 4

xDn U=- ms

60

(48)

~

JUlJIJ

IlJIJ

n 1410 vgpJ Ii

i

V

~ -shyI H

I~

- Vmiddot

l- Iimiddot

1 1-

V shyH I ~

shy- lt~

-

gt )

-shy ~yen

Ai ( I

-~ - f- 1)95

-bos ~

~ v jl=bull I

100lJ 2000 J()P)

oJ

41 50 kW 10

30

20

10

Hlnh 41 Cae d~ doh eua qu~L

Nu voi ch~ dQ lam vi~c ttfdng tv flU do dl1l1C cBc htll h1Qng eua cc qUilt b6ng nhau thOng qua vic au d1ng a6 do 0 (48 thl Wi III M so luu lufng Q

- QQ = - (49)

KQ

hay Q = QK (410)Q

V~i qUlLt iy tAm thl 86 do ccentt ap KI- 18 kg

Kli = pU -m51

(411)

H~ 06 ltlp Ive e~t lip I Ii H

H= shy (412) KH

hay I II = HKH (413)

86 do cling SUft KN bAng deh cua 96 do luu 1t1laquofng vjj sd do c(it ap

108

KN = KQKH psU3 W (414) H~ 86 c6ng SUlaquot IA

(415) hay Ii (416)

N = NIKN

n~u N 111 kW thl 1000N

N= (417)

Th~ng qua cae M 86 kh6ng 86 do cd th xtic dnh h~ 56 bi~ dlng cUa qU3t (hay OOtn)

QH ~=- (418)

N

Vu ditlm Cd han cua cac hf s6 khtmg sli do tA dlinh gi8 ~c dnh ella q~t (bdm) vCi It d~ lu(Jng Dd la cac M sO QvA H tl1ang Dug vOi M 86 bitu dlng Ion nhlt Khi ChQD

1 N

If as

QJ

U

iJ

z= 11 Ll - 4fJQMm

J n 9UO tlJoovgh

r- r-V tt

t f ~

___M

P I 0 Z

0shy ~ f t

1 L

t II

fl r- it i ~1-

I I 1

J I Pil ~

f-j i-tshy -l I 1-

-

~

I

f-i Hr I

RInk 42 Ck d4e tinh kbOng s6 do cUll qUIlt

109

qu~t (bam) lAm vitc b eM dcent t6i uu cO hiu htl1ng va ccentt ap mong mu6n thl chi ebn chcul d1XCng klnh vi 56 vong quay cua gullng dcentng It diL

Vdi khOng khpound cd PI = 2 kglm3 ap suAt 760 mm Hg nhl~ dcent 200C dl) m tuengj

dOl 5amp1 thl dulttng )dnh va s6 vOng quay cua qu~t 1ft O6672K )j

D = V bull mj Kill

(419)Kt n 813 -w vgph

KQ

44 TltNG IlN ellA QUjT

Tilng on cua quat cO hai dmg Is on khi dcentng va on co hqe

441 On khi dng

On khf dQng sinh ta do cae chi tiKt khlic nhau cua qWJt tae dcentng I~n chuyeuron dOeng eua dbng khL Yu ttS chlnh gAy ~n khi dt)ng Ja ~n t6c vbng Ibn vi cuitng dcent bn tt l~ b$c sau vdi $ Me b$c hal vai 86 do tuy6n deh ella caub vA ~c hal vifi sdc cln dinh cnh y~u t6 thtl hat 11 dng unh d$ng thAn yo) qUl~t s6 canh cheuro dQ lam vl~ cua qu~t va du tr6c buong d1lt qut Tihg ~n sinh ra do chuyfn dng xoay eua thOng khf v6i gu~ng dcentng ~o nen cae song khOng- khi va rung dlng ella Clic ~ ph~n KhOng kht iii qua cua hutt canh huOng dong (nu co) di qua ella ra ella v6 cung t$O xoay va gAy hn

Canh eong vl phfa truoc on nhi~u hon cong va gau

442 On hllC

Dl) vfrng ehac cda dnh qUftt an it hdn (due canh Jil1n voi bhu)

Hlu h~t qu~t lap cOngxon viii trve ~n ti~ng 1In Urn neurou cAn bAng d~ng kh6ng t6t

Ti~ng tm ebn do cae is hi gay Ta do dl)ng 00 gly ra

Mu6n tninh tieurong in (h~n eM den mdc tbap nh4t) CUR qu~t va h~ th6ng chn I~i bO h41 nguyAn nMn giiy on nhu

bull ~nh qilQt nlm cong v san (ntu 00 thd)~ n t6c gio trong cae 6ng din nAn nha gu~ng dOng phAi dUQc cAn bang tlnh vii dl)ng t6t kh6ng n6i cdng dllbng 6ng wi vo qUft vo (thAn) qUllt phlii vung chc

- cae 6 da pbAi 18 6 t111IJt (kh6ng dung e bO s6 vbng quay cua QU4t n~n chQn nhd (niu eO thl1) vn too kh6ng kM trong qU4t clog nho clng tOt

middot gifta deuro qut va mong eftn d$m cansu v v

Thea ti~u chun cua Nga thl v$n too vong b dtfbng kfnh ngoai eua gubng d~ng (hO$c duang kfnh dinh canh) duc$c quy dlnh nhU fl8U

bull vOl q~t hUdng trvc tit 80 deuron 100 mJs

110

vOi qU(lt Iy tam IS 50 ms

v$n too gi6 trong ling dAn 18 5 ms

Q~t cO tM h~t dOng tTong h~ th6ng hut dy~ vitabllt vUQ dfy T6t nhlaquot vin lA cheuro dl) dy vi v$y nwj nai m9i eM neurou cd thl dUQc non ch~ qwrt lAm vi~ d cheuro dO dfy

45 Illtu CHiNK QUjoT

De dieu chinh qUlt ta dln bi~t C1l th~ q~t Iltm vi~ trong ht th6ng but dlty hay vita htlt vita dAy

Hinh 43 th~ hi~n nguy~n Ij du to w h~t dcentcng cue h$ thlSng q~t hut

pbullbull tip $~t khi quyeuron

p b ~ ltip 8Uat ~ cUe hut cUe guang d~ng

Pd - ap suat tli cUe ddy cUa guoog d~ng

Hd ~ t6n that tip lfc dng nAng ~ mitng hdt

d bull ~n thAt dQng nAng a cUQ dy

Ho - tlSn thlaquot tm II1C duilng 6ng

HI ton that tro IIC Hnh

Hmiddot tong t6n that tro hie (cilng 18 ap htcmlll qu~t phAi cO)

H = ~ + HI + H d mm H20 (420)

-

Hinh 43 Q~t JAm vi~e lJ ell d~ htlt

Mu6n giAm ton that d~ng nang H bull lJ clia dlly e~a h~ th6ng qut hut phil lam do~n 6ng loe de giAnt vfn USc dong khl xu6ng eOn 30 den 26~ vtn t6c dlu Ode loe gQi 11 a = 10deg Tit do tfnh dQ dai eua d~n 6ng loe d(n~n lthulaquoch tan)

III

I WpH = (1- + ) - (421)

I d ~ 2

trong do

t - ht 86 ma sat giOa htu th4 vdi thAnh 6ng

I d - chi~ dAl duttng Mnb 6ng dan m

L~ t5ng t1O hje CIlC bQ tren 6ng hut

W - v$n t6c dong htu th~ di trong 6ng ms

p bull kMi )ultlDg rlfng cd h1U tM kglm

H t citng eO tM tInh tit cOng thdc

H = LIn + LZ mmHo (422)

trong do

l - chf~u lttAt CUS do~ 6ng cO cung dubng kfnh m

R - h4 96 ma sat t~n m6i met 6ng ph thu(lc viW tift di~n fing va tun IUc1ng mmHO

cua khl (xem blnh 416) --- W2p m

Z ~ - mmHZO (423)2

H(J vi Hd tInh theo cang thdc (43)

l a --t $1 -

~

H~ ~ iif

I

bull ~

1

Hlnh 44 QUat lam vi~c bull eM d~ deuroy

cong sullt eua qUl)t dnb theo cOng thdc (47)

Hlnh 44 th~ hi~n ngu~n Ij efu ~o cua M th6ng qUlJt d8y Chi~u can cOt ap H du)c dnh thea cOng thdc

Ii = + HI mmIizO (424)H t

112

HI vl Hd ciing tfnh htdng ti nhu h th6ng qu~t hut Cong sullt ciing dnh tuong tl nhtt cOng thdc (47)

Fa == Ph - lip su(t khf quy~n bAng lip su1t hut

Pd - ap suat dy

(4lt25)

co nhi~u trubng hqp qUl(lt lim vi~ vlsi eh~ dl vila dty vua but Cae phep thh cung tUdng t~ nhu t[6n vii tfnh ci hai phla

Di~ chJnh hlu htl1ng Cllft qut 00 tM bang cae each sau dung van they d6i 86 vOng quay cblnh g6c nghi6ng cue canlt gu~ng hay chb ella bO din huang (nlaquou cO tbsect)

a) lJilu chinh btu lUQng bang van DAy la phuong pbap don giln nltt titu 11 vi vy no dU11c dug dllDg ~ng rAL Van

cO th6 dtt (J 6ng dlty hay 6ng hut Dtt a 6ng hilt thi nnh teuro hon Khi dong 116t hay md tUm van MInh ltl lam thay ddi dubng dtc tInb tlSn tMt H d djch chu~n di6m lAmt vi~ cUB q~t nhu vty tre ct$ htu JUQng vi ecentt ap thay d6i

b) Dilu chink bang thay ddi so vong quay DAy III phuong phlip kinh teuro nUt nhung cAn cd d)ng C(f thay dlSi v4n t6c holC bQ

truy~i1 d)ng cd thit thay dtSi dt~c 56 vbng quay cUa qut c) Thay ddt bAng di~u chlnh c6nh httdng dong

B~ canh nay thuang d~t d cua hut cua qut

HKhi ch~ tl10 dA lAm cho nd cd khA DAng toay dUQC khj cAn Phuong phlip nAy cling kinh teuro vA thulJng duQc tip dyng A

trong cOng nghi~p

Ph~ang phap nAy chlnh III Illm thay d6i dQ doc cue duang dlc tlnh Q ~ H (xem Hz--shyWoo 4lt5)lt

Dtlllng Q - H bay d6i dQ d6c khi s6 vbug quay gin nguy~n dilim A vln kh6ng Q -------0---

tz ttthay d6i

Nhlt vty dim lam vi~c cUa qUlt sa lit 1 h 2 dng vOi htu Juqng Q I ill c(lt Htnh 45 81 tbay d6i duong ~c dnh

khi dieu chinh qu~Lap H j gt Hz d) Di~u chinn hAng eltnh cua gklJng

d~ng

Chi ap dtmg dUltjc cho qu~t hlflmg trye va cfing pbru ch~ ~o trU(Jc df 00 tb dilu chlnh dutjc

u sl LAM vlEe SONG SONG vA N61 Tlip ellA QUAT

Qua trlnh lAm vi(tc song song bay niSi tieurop cua cae qut cOng gi6ng htt nhu cc bam

11~

__

5

f ~-----71( z

Hlnh 46 16 s1116m vi~c song song cda hal qu~t cO Ituimg dJc dnh khac nhau Trang truitng hQp nay eln ehu y ap hIe (chibu can cl)t ap) chung phli th4p h01l di4m A n~u cao hon thi qWJt eO dc tfnh thap 18 Q2 ~ H2 sa kh6ng cO htu IUJng nu)c du vAn quay Qut mQt dA th6r ~t qU-t bai

HH

b Q

Hinh 46 Dc dnh eua hai qut khac Hinh 47 Dtc tinh cUa hai qWJt nhau lAm vi~ song song gi6ng nhau JAm vic song song

Hlnh 47 Is Ill liim vi~c Oong song ella hai qUilt giling h~ nhau Neu d~ dnh III H thl khi lam vi~c song song se co hill IItt1ng nhi~u hem mcentt qut Neurou d$c tlnh t6n thlt lit H~ thi hai qu~t lam vifc song song cling chang nhieu hon m(tt qUlolt IS bao hhi~u Vi v~y n~n httang v~ dttctng H sfl kinh te han

47 CONG su(T DONG cO

Sao khi di dnh dUQc congo suit ctia qut lil N thl tbn uOng sulaquot d(tng co N d bullN

~-~ shy~

trong d6

N e6ng soat d~t Um ttI1C qu~t dnh thea di~u ki~n (47) kW

a ~ hlJ 56 tra bang (41)

I ~ h~ s6 hi$u d9ng truy~n d(mlr

1][ bull 1 bull truyen dcentng ttic tiep (t1lC cua dcentng Cd cung 11 cU3 q~t)

1 095 bAng khap m~m

III bull 09 b8ng dai thang

it = 085 bang dai dllt

114

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

KN = KQKH psU3 W (414) H~ 86 c6ng SUlaquot IA

(415) hay Ii (416)

N = NIKN

n~u N 111 kW thl 1000N

N= (417)

Th~ng qua cae M 86 kh6ng 86 do cd th xtic dnh h~ 56 bi~ dlng cUa qU3t (hay OOtn)

QH ~=- (418)

N

Vu ditlm Cd han cua cac hf s6 khtmg sli do tA dlinh gi8 ~c dnh ella q~t (bdm) vCi It d~ lu(Jng Dd la cac M sO QvA H tl1ang Dug vOi M 86 bitu dlng Ion nhlt Khi ChQD

1 N

If as

QJ

U

iJ

z= 11 Ll - 4fJQMm

J n 9UO tlJoovgh

r- r-V tt

t f ~

___M

P I 0 Z

0shy ~ f t

1 L

t II

fl r- it i ~1-

I I 1

J I Pil ~

f-j i-tshy -l I 1-

-

~

I

f-i Hr I

RInk 42 Ck d4e tinh kbOng s6 do cUll qUIlt

109

qu~t (bam) lAm vitc b eM dcent t6i uu cO hiu htl1ng va ccentt ap mong mu6n thl chi ebn chcul d1XCng klnh vi 56 vong quay cua gullng dcentng It diL

Vdi khOng khpound cd PI = 2 kglm3 ap suAt 760 mm Hg nhl~ dcent 200C dl) m tuengj

dOl 5amp1 thl dulttng )dnh va s6 vOng quay cua qu~t 1ft O6672K )j

D = V bull mj Kill

(419)Kt n 813 -w vgph

KQ

44 TltNG IlN ellA QUjT

Tilng on cua quat cO hai dmg Is on khi dcentng va on co hqe

441 On khi dng

On khf dQng sinh ta do cae chi tiKt khlic nhau cua qWJt tae dcentng I~n chuyeuron dOeng eua dbng khL Yu ttS chlnh gAy ~n khi dt)ng Ja ~n t6c vbng Ibn vi cuitng dcent bn tt l~ b$c sau vdi $ Me b$c hal vai 86 do tuy6n deh ella caub vA ~c hal vifi sdc cln dinh cnh y~u t6 thtl hat 11 dng unh d$ng thAn yo) qUl~t s6 canh cheuro dQ lam vl~ cua qu~t va du tr6c buong d1lt qut Tihg ~n sinh ra do chuyfn dng xoay eua thOng khf v6i gu~ng dcentng ~o nen cae song khOng- khi va rung dlng ella Clic ~ ph~n KhOng kht iii qua cua hutt canh huOng dong (nu co) di qua ella ra ella v6 cung t$O xoay va gAy hn

Canh eong vl phfa truoc on nhi~u hon cong va gau

442 On hllC

Dl) vfrng ehac cda dnh qUftt an it hdn (due canh Jil1n voi bhu)

Hlu h~t qu~t lap cOngxon viii trve ~n ti~ng 1In Urn neurou cAn bAng d~ng kh6ng t6t

Ti~ng tm ebn do cae is hi gay Ta do dl)ng 00 gly ra

Mu6n tninh tieurong in (h~n eM den mdc tbap nh4t) CUR qu~t va h~ th6ng chn I~i bO h41 nguyAn nMn giiy on nhu

bull ~nh qilQt nlm cong v san (ntu 00 thd)~ n t6c gio trong cae 6ng din nAn nha gu~ng dOng phAi dUQc cAn bang tlnh vii dl)ng t6t kh6ng n6i cdng dllbng 6ng wi vo qUft vo (thAn) qUllt phlii vung chc

- cae 6 da pbAi 18 6 t111IJt (kh6ng dung e bO s6 vbng quay cua QU4t n~n chQn nhd (niu eO thl1) vn too kh6ng kM trong qU4t clog nho clng tOt

middot gifta deuro qut va mong eftn d$m cansu v v

Thea ti~u chun cua Nga thl v$n too vong b dtfbng kfnh ngoai eua gubng d~ng (hO$c duang kfnh dinh canh) duc$c quy dlnh nhU fl8U

bull vOl q~t hUdng trvc tit 80 deuron 100 mJs

110

vOi qU(lt Iy tam IS 50 ms

v$n too gi6 trong ling dAn 18 5 ms

Q~t cO tM h~t dOng tTong h~ th6ng hut dy~ vitabllt vUQ dfy T6t nhlaquot vin lA cheuro dl) dy vi v$y nwj nai m9i eM neurou cd thl dUQc non ch~ qwrt lAm vi~ d cheuro dO dfy

45 Illtu CHiNK QUjoT

De dieu chinh qUlt ta dln bi~t C1l th~ q~t Iltm vi~ trong ht th6ng but dlty hay vita htlt vita dAy

Hinh 43 th~ hi~n nguy~n Ij du to w h~t dcentcng cue h$ thlSng q~t hut

pbullbull tip $~t khi quyeuron

p b ~ ltip 8Uat ~ cUe hut cUe guang d~ng

Pd - ap suat tli cUe ddy cUa guoog d~ng

Hd ~ t6n that tip lfc dng nAng ~ mitng hdt

d bull ~n thAt dQng nAng a cUQ dy

Ho - tlSn thlaquot tm II1C duilng 6ng

HI ton that tro IIC Hnh

Hmiddot tong t6n that tro hie (cilng 18 ap htcmlll qu~t phAi cO)

H = ~ + HI + H d mm H20 (420)

-

Hinh 43 Q~t JAm vi~e lJ ell d~ htlt

Mu6n giAm ton that d~ng nang H bull lJ clia dlly e~a h~ th6ng qut hut phil lam do~n 6ng loe de giAnt vfn USc dong khl xu6ng eOn 30 den 26~ vtn t6c dlu Ode loe gQi 11 a = 10deg Tit do tfnh dQ dai eua d~n 6ng loe d(n~n lthulaquoch tan)

III

I WpH = (1- + ) - (421)

I d ~ 2

trong do

t - ht 86 ma sat giOa htu th4 vdi thAnh 6ng

I d - chi~ dAl duttng Mnb 6ng dan m

L~ t5ng t1O hje CIlC bQ tren 6ng hut

W - v$n t6c dong htu th~ di trong 6ng ms

p bull kMi )ultlDg rlfng cd h1U tM kglm

H t citng eO tM tInh tit cOng thdc

H = LIn + LZ mmHo (422)

trong do

l - chf~u lttAt CUS do~ 6ng cO cung dubng kfnh m

R - h4 96 ma sat t~n m6i met 6ng ph thu(lc viW tift di~n fing va tun IUc1ng mmHO

cua khl (xem blnh 416) --- W2p m

Z ~ - mmHZO (423)2

H(J vi Hd tInh theo cang thdc (43)

l a --t $1 -

~

H~ ~ iif

I

bull ~

1

Hlnh 44 QUat lam vi~c bull eM d~ deuroy

cong sullt eua qUl)t dnb theo cOng thdc (47)

Hlnh 44 th~ hi~n ngu~n Ij efu ~o cua M th6ng qUlJt d8y Chi~u can cOt ap H du)c dnh thea cOng thdc

Ii = + HI mmIizO (424)H t

112

HI vl Hd ciing tfnh htdng ti nhu h th6ng qu~t hut Cong sullt ciing dnh tuong tl nhtt cOng thdc (47)

Fa == Ph - lip su(t khf quy~n bAng lip su1t hut

Pd - ap suat dy

(4lt25)

co nhi~u trubng hqp qUl(lt lim vi~ vlsi eh~ dl vila dty vua but Cae phep thh cung tUdng t~ nhu t[6n vii tfnh ci hai phla

Di~ chJnh hlu htl1ng Cllft qut 00 tM bang cae each sau dung van they d6i 86 vOng quay cblnh g6c nghi6ng cue canlt gu~ng hay chb ella bO din huang (nlaquou cO tbsect)

a) lJilu chinh btu lUQng bang van DAy la phuong pbap don giln nltt titu 11 vi vy no dU11c dug dllDg ~ng rAL Van

cO th6 dtt (J 6ng dlty hay 6ng hut Dtt a 6ng hilt thi nnh teuro hon Khi dong 116t hay md tUm van MInh ltl lam thay ddi dubng dtc tInb tlSn tMt H d djch chu~n di6m lAmt vi~ cUB q~t nhu vty tre ct$ htu JUQng vi ecentt ap thay d6i

b) Dilu chink bang thay ddi so vong quay DAy III phuong phlip kinh teuro nUt nhung cAn cd d)ng C(f thay dlSi v4n t6c holC bQ

truy~i1 d)ng cd thit thay dtSi dt~c 56 vbng quay cUa qut c) Thay ddt bAng di~u chlnh c6nh httdng dong

B~ canh nay thuang d~t d cua hut cua qut

HKhi ch~ tl10 dA lAm cho nd cd khA DAng toay dUQC khj cAn Phuong phlip nAy cling kinh teuro vA thulJng duQc tip dyng A

trong cOng nghi~p

Ph~ang phap nAy chlnh III Illm thay d6i dQ doc cue duang dlc tlnh Q ~ H (xem Hz--shyWoo 4lt5)lt

Dtlllng Q - H bay d6i dQ d6c khi s6 vbug quay gin nguy~n dilim A vln kh6ng Q -------0---

tz ttthay d6i

Nhlt vty dim lam vi~c cUa qUlt sa lit 1 h 2 dng vOi htu Juqng Q I ill c(lt Htnh 45 81 tbay d6i duong ~c dnh

khi dieu chinh qu~Lap H j gt Hz d) Di~u chinn hAng eltnh cua gklJng

d~ng

Chi ap dtmg dUltjc cho qu~t hlflmg trye va cfing pbru ch~ ~o trU(Jc df 00 tb dilu chlnh dutjc

u sl LAM vlEe SONG SONG vA N61 Tlip ellA QUAT

Qua trlnh lAm vi(tc song song bay niSi tieurop cua cae qut cOng gi6ng htt nhu cc bam

11~

__

5

f ~-----71( z

Hlnh 46 16 s1116m vi~c song song cda hal qu~t cO Ituimg dJc dnh khac nhau Trang truitng hQp nay eln ehu y ap hIe (chibu can cl)t ap) chung phli th4p h01l di4m A n~u cao hon thi qWJt eO dc tfnh thap 18 Q2 ~ H2 sa kh6ng cO htu IUJng nu)c du vAn quay Qut mQt dA th6r ~t qU-t bai

HH

b Q

Hinh 46 Dc dnh eua hai qut khac Hinh 47 Dtc tinh cUa hai qWJt nhau lAm vi~ song song gi6ng nhau JAm vic song song

Hlnh 47 Is Ill liim vi~c Oong song ella hai qUilt giling h~ nhau Neu d~ dnh III H thl khi lam vi~c song song se co hill IItt1ng nhi~u hem mcentt qut Neurou d$c tlnh t6n thlt lit H~ thi hai qu~t lam vifc song song cling chang nhieu hon m(tt qUlolt IS bao hhi~u Vi v~y n~n httang v~ dttctng H sfl kinh te han

47 CONG su(T DONG cO

Sao khi di dnh dUQc congo suit ctia qut lil N thl tbn uOng sulaquot d(tng co N d bullN

~-~ shy~

trong d6

N e6ng soat d~t Um ttI1C qu~t dnh thea di~u ki~n (47) kW

a ~ hlJ 56 tra bang (41)

I ~ h~ s6 hi$u d9ng truy~n d(mlr

1][ bull 1 bull truyen dcentng ttic tiep (t1lC cua dcentng Cd cung 11 cU3 q~t)

1 095 bAng khap m~m

III bull 09 b8ng dai thang

it = 085 bang dai dllt

114

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

qu~t (bam) lAm vitc b eM dcent t6i uu cO hiu htl1ng va ccentt ap mong mu6n thl chi ebn chcul d1XCng klnh vi 56 vong quay cua gullng dcentng It diL

Vdi khOng khpound cd PI = 2 kglm3 ap suAt 760 mm Hg nhl~ dcent 200C dl) m tuengj

dOl 5amp1 thl dulttng )dnh va s6 vOng quay cua qu~t 1ft O6672K )j

D = V bull mj Kill

(419)Kt n 813 -w vgph

KQ

44 TltNG IlN ellA QUjT

Tilng on cua quat cO hai dmg Is on khi dcentng va on co hqe

441 On khi dng

On khf dQng sinh ta do cae chi tiKt khlic nhau cua qWJt tae dcentng I~n chuyeuron dOeng eua dbng khL Yu ttS chlnh gAy ~n khi dt)ng Ja ~n t6c vbng Ibn vi cuitng dcent bn tt l~ b$c sau vdi $ Me b$c hal vai 86 do tuy6n deh ella caub vA ~c hal vifi sdc cln dinh cnh y~u t6 thtl hat 11 dng unh d$ng thAn yo) qUl~t s6 canh cheuro dQ lam vl~ cua qu~t va du tr6c buong d1lt qut Tihg ~n sinh ra do chuyfn dng xoay eua thOng khf v6i gu~ng dcentng ~o nen cae song khOng- khi va rung dlng ella Clic ~ ph~n KhOng kht iii qua cua hutt canh huOng dong (nu co) di qua ella ra ella v6 cung t$O xoay va gAy hn

Canh eong vl phfa truoc on nhi~u hon cong va gau

442 On hllC

Dl) vfrng ehac cda dnh qUftt an it hdn (due canh Jil1n voi bhu)

Hlu h~t qu~t lap cOngxon viii trve ~n ti~ng 1In Urn neurou cAn bAng d~ng kh6ng t6t

Ti~ng tm ebn do cae is hi gay Ta do dl)ng 00 gly ra

Mu6n tninh tieurong in (h~n eM den mdc tbap nh4t) CUR qu~t va h~ th6ng chn I~i bO h41 nguyAn nMn giiy on nhu

bull ~nh qilQt nlm cong v san (ntu 00 thd)~ n t6c gio trong cae 6ng din nAn nha gu~ng dOng phAi dUQc cAn bang tlnh vii dl)ng t6t kh6ng n6i cdng dllbng 6ng wi vo qUft vo (thAn) qUllt phlii vung chc

- cae 6 da pbAi 18 6 t111IJt (kh6ng dung e bO s6 vbng quay cua QU4t n~n chQn nhd (niu eO thl1) vn too kh6ng kM trong qU4t clog nho clng tOt

middot gifta deuro qut va mong eftn d$m cansu v v

Thea ti~u chun cua Nga thl v$n too vong b dtfbng kfnh ngoai eua gubng d~ng (hO$c duang kfnh dinh canh) duc$c quy dlnh nhU fl8U

bull vOl q~t hUdng trvc tit 80 deuron 100 mJs

110

vOi qU(lt Iy tam IS 50 ms

v$n too gi6 trong ling dAn 18 5 ms

Q~t cO tM h~t dOng tTong h~ th6ng hut dy~ vitabllt vUQ dfy T6t nhlaquot vin lA cheuro dl) dy vi v$y nwj nai m9i eM neurou cd thl dUQc non ch~ qwrt lAm vi~ d cheuro dO dfy

45 Illtu CHiNK QUjoT

De dieu chinh qUlt ta dln bi~t C1l th~ q~t Iltm vi~ trong ht th6ng but dlty hay vita htlt vita dAy

Hinh 43 th~ hi~n nguy~n Ij du to w h~t dcentcng cue h$ thlSng q~t hut

pbullbull tip $~t khi quyeuron

p b ~ ltip 8Uat ~ cUe hut cUe guang d~ng

Pd - ap suat tli cUe ddy cUa guoog d~ng

Hd ~ t6n that tip lfc dng nAng ~ mitng hdt

d bull ~n thAt dQng nAng a cUQ dy

Ho - tlSn thlaquot tm II1C duilng 6ng

HI ton that tro IIC Hnh

Hmiddot tong t6n that tro hie (cilng 18 ap htcmlll qu~t phAi cO)

H = ~ + HI + H d mm H20 (420)

-

Hinh 43 Q~t JAm vi~e lJ ell d~ htlt

Mu6n giAm ton that d~ng nang H bull lJ clia dlly e~a h~ th6ng qut hut phil lam do~n 6ng loe de giAnt vfn USc dong khl xu6ng eOn 30 den 26~ vtn t6c dlu Ode loe gQi 11 a = 10deg Tit do tfnh dQ dai eua d~n 6ng loe d(n~n lthulaquoch tan)

III

I WpH = (1- + ) - (421)

I d ~ 2

trong do

t - ht 86 ma sat giOa htu th4 vdi thAnh 6ng

I d - chi~ dAl duttng Mnb 6ng dan m

L~ t5ng t1O hje CIlC bQ tren 6ng hut

W - v$n t6c dong htu th~ di trong 6ng ms

p bull kMi )ultlDg rlfng cd h1U tM kglm

H t citng eO tM tInh tit cOng thdc

H = LIn + LZ mmHo (422)

trong do

l - chf~u lttAt CUS do~ 6ng cO cung dubng kfnh m

R - h4 96 ma sat t~n m6i met 6ng ph thu(lc viW tift di~n fing va tun IUc1ng mmHO

cua khl (xem blnh 416) --- W2p m

Z ~ - mmHZO (423)2

H(J vi Hd tInh theo cang thdc (43)

l a --t $1 -

~

H~ ~ iif

I

bull ~

1

Hlnh 44 QUat lam vi~c bull eM d~ deuroy

cong sullt eua qUl)t dnb theo cOng thdc (47)

Hlnh 44 th~ hi~n ngu~n Ij efu ~o cua M th6ng qUlJt d8y Chi~u can cOt ap H du)c dnh thea cOng thdc

Ii = + HI mmIizO (424)H t

112

HI vl Hd ciing tfnh htdng ti nhu h th6ng qu~t hut Cong sullt ciing dnh tuong tl nhtt cOng thdc (47)

Fa == Ph - lip su(t khf quy~n bAng lip su1t hut

Pd - ap suat dy

(4lt25)

co nhi~u trubng hqp qUl(lt lim vi~ vlsi eh~ dl vila dty vua but Cae phep thh cung tUdng t~ nhu t[6n vii tfnh ci hai phla

Di~ chJnh hlu htl1ng Cllft qut 00 tM bang cae each sau dung van they d6i 86 vOng quay cblnh g6c nghi6ng cue canlt gu~ng hay chb ella bO din huang (nlaquou cO tbsect)

a) lJilu chinh btu lUQng bang van DAy la phuong pbap don giln nltt titu 11 vi vy no dU11c dug dllDg ~ng rAL Van

cO th6 dtt (J 6ng dlty hay 6ng hut Dtt a 6ng hilt thi nnh teuro hon Khi dong 116t hay md tUm van MInh ltl lam thay ddi dubng dtc tInb tlSn tMt H d djch chu~n di6m lAmt vi~ cUB q~t nhu vty tre ct$ htu JUQng vi ecentt ap thay d6i

b) Dilu chink bang thay ddi so vong quay DAy III phuong phlip kinh teuro nUt nhung cAn cd d)ng C(f thay dlSi v4n t6c holC bQ

truy~i1 d)ng cd thit thay dtSi dt~c 56 vbng quay cUa qut c) Thay ddt bAng di~u chlnh c6nh httdng dong

B~ canh nay thuang d~t d cua hut cua qut

HKhi ch~ tl10 dA lAm cho nd cd khA DAng toay dUQC khj cAn Phuong phlip nAy cling kinh teuro vA thulJng duQc tip dyng A

trong cOng nghi~p

Ph~ang phap nAy chlnh III Illm thay d6i dQ doc cue duang dlc tlnh Q ~ H (xem Hz--shyWoo 4lt5)lt

Dtlllng Q - H bay d6i dQ d6c khi s6 vbug quay gin nguy~n dilim A vln kh6ng Q -------0---

tz ttthay d6i

Nhlt vty dim lam vi~c cUa qUlt sa lit 1 h 2 dng vOi htu Juqng Q I ill c(lt Htnh 45 81 tbay d6i duong ~c dnh

khi dieu chinh qu~Lap H j gt Hz d) Di~u chinn hAng eltnh cua gklJng

d~ng

Chi ap dtmg dUltjc cho qu~t hlflmg trye va cfing pbru ch~ ~o trU(Jc df 00 tb dilu chlnh dutjc

u sl LAM vlEe SONG SONG vA N61 Tlip ellA QUAT

Qua trlnh lAm vi(tc song song bay niSi tieurop cua cae qut cOng gi6ng htt nhu cc bam

11~

__

5

f ~-----71( z

Hlnh 46 16 s1116m vi~c song song cda hal qu~t cO Ituimg dJc dnh khac nhau Trang truitng hQp nay eln ehu y ap hIe (chibu can cl)t ap) chung phli th4p h01l di4m A n~u cao hon thi qWJt eO dc tfnh thap 18 Q2 ~ H2 sa kh6ng cO htu IUJng nu)c du vAn quay Qut mQt dA th6r ~t qU-t bai

HH

b Q

Hinh 46 Dc dnh eua hai qut khac Hinh 47 Dtc tinh cUa hai qWJt nhau lAm vi~ song song gi6ng nhau JAm vic song song

Hlnh 47 Is Ill liim vi~c Oong song ella hai qUilt giling h~ nhau Neu d~ dnh III H thl khi lam vi~c song song se co hill IItt1ng nhi~u hem mcentt qut Neurou d$c tlnh t6n thlt lit H~ thi hai qu~t lam vifc song song cling chang nhieu hon m(tt qUlolt IS bao hhi~u Vi v~y n~n httang v~ dttctng H sfl kinh te han

47 CONG su(T DONG cO

Sao khi di dnh dUQc congo suit ctia qut lil N thl tbn uOng sulaquot d(tng co N d bullN

~-~ shy~

trong d6

N e6ng soat d~t Um ttI1C qu~t dnh thea di~u ki~n (47) kW

a ~ hlJ 56 tra bang (41)

I ~ h~ s6 hi$u d9ng truy~n d(mlr

1][ bull 1 bull truyen dcentng ttic tiep (t1lC cua dcentng Cd cung 11 cU3 q~t)

1 095 bAng khap m~m

III bull 09 b8ng dai thang

it = 085 bang dai dllt

114

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

vOi qU(lt Iy tam IS 50 ms

v$n too gi6 trong ling dAn 18 5 ms

Q~t cO tM h~t dOng tTong h~ th6ng hut dy~ vitabllt vUQ dfy T6t nhlaquot vin lA cheuro dl) dy vi v$y nwj nai m9i eM neurou cd thl dUQc non ch~ qwrt lAm vi~ d cheuro dO dfy

45 Illtu CHiNK QUjoT

De dieu chinh qUlt ta dln bi~t C1l th~ q~t Iltm vi~ trong ht th6ng but dlty hay vita htlt vita dAy

Hinh 43 th~ hi~n nguy~n Ij du to w h~t dcentcng cue h$ thlSng q~t hut

pbullbull tip $~t khi quyeuron

p b ~ ltip 8Uat ~ cUe hut cUe guang d~ng

Pd - ap suat tli cUe ddy cUa guoog d~ng

Hd ~ t6n that tip lfc dng nAng ~ mitng hdt

d bull ~n thAt dQng nAng a cUQ dy

Ho - tlSn thlaquot tm II1C duilng 6ng

HI ton that tro IIC Hnh

Hmiddot tong t6n that tro hie (cilng 18 ap htcmlll qu~t phAi cO)

H = ~ + HI + H d mm H20 (420)

-

Hinh 43 Q~t JAm vi~e lJ ell d~ htlt

Mu6n giAm ton that d~ng nang H bull lJ clia dlly e~a h~ th6ng qut hut phil lam do~n 6ng loe de giAnt vfn USc dong khl xu6ng eOn 30 den 26~ vtn t6c dlu Ode loe gQi 11 a = 10deg Tit do tfnh dQ dai eua d~n 6ng loe d(n~n lthulaquoch tan)

III

I WpH = (1- + ) - (421)

I d ~ 2

trong do

t - ht 86 ma sat giOa htu th4 vdi thAnh 6ng

I d - chi~ dAl duttng Mnb 6ng dan m

L~ t5ng t1O hje CIlC bQ tren 6ng hut

W - v$n t6c dong htu th~ di trong 6ng ms

p bull kMi )ultlDg rlfng cd h1U tM kglm

H t citng eO tM tInh tit cOng thdc

H = LIn + LZ mmHo (422)

trong do

l - chf~u lttAt CUS do~ 6ng cO cung dubng kfnh m

R - h4 96 ma sat t~n m6i met 6ng ph thu(lc viW tift di~n fing va tun IUc1ng mmHO

cua khl (xem blnh 416) --- W2p m

Z ~ - mmHZO (423)2

H(J vi Hd tInh theo cang thdc (43)

l a --t $1 -

~

H~ ~ iif

I

bull ~

1

Hlnh 44 QUat lam vi~c bull eM d~ deuroy

cong sullt eua qUl)t dnb theo cOng thdc (47)

Hlnh 44 th~ hi~n ngu~n Ij efu ~o cua M th6ng qUlJt d8y Chi~u can cOt ap H du)c dnh thea cOng thdc

Ii = + HI mmIizO (424)H t

112

HI vl Hd ciing tfnh htdng ti nhu h th6ng qu~t hut Cong sullt ciing dnh tuong tl nhtt cOng thdc (47)

Fa == Ph - lip su(t khf quy~n bAng lip su1t hut

Pd - ap suat dy

(4lt25)

co nhi~u trubng hqp qUl(lt lim vi~ vlsi eh~ dl vila dty vua but Cae phep thh cung tUdng t~ nhu t[6n vii tfnh ci hai phla

Di~ chJnh hlu htl1ng Cllft qut 00 tM bang cae each sau dung van they d6i 86 vOng quay cblnh g6c nghi6ng cue canlt gu~ng hay chb ella bO din huang (nlaquou cO tbsect)

a) lJilu chinh btu lUQng bang van DAy la phuong pbap don giln nltt titu 11 vi vy no dU11c dug dllDg ~ng rAL Van

cO th6 dtt (J 6ng dlty hay 6ng hut Dtt a 6ng hilt thi nnh teuro hon Khi dong 116t hay md tUm van MInh ltl lam thay ddi dubng dtc tInb tlSn tMt H d djch chu~n di6m lAmt vi~ cUB q~t nhu vty tre ct$ htu JUQng vi ecentt ap thay d6i

b) Dilu chink bang thay ddi so vong quay DAy III phuong phlip kinh teuro nUt nhung cAn cd d)ng C(f thay dlSi v4n t6c holC bQ

truy~i1 d)ng cd thit thay dtSi dt~c 56 vbng quay cUa qut c) Thay ddt bAng di~u chlnh c6nh httdng dong

B~ canh nay thuang d~t d cua hut cua qut

HKhi ch~ tl10 dA lAm cho nd cd khA DAng toay dUQC khj cAn Phuong phlip nAy cling kinh teuro vA thulJng duQc tip dyng A

trong cOng nghi~p

Ph~ang phap nAy chlnh III Illm thay d6i dQ doc cue duang dlc tlnh Q ~ H (xem Hz--shyWoo 4lt5)lt

Dtlllng Q - H bay d6i dQ d6c khi s6 vbug quay gin nguy~n dilim A vln kh6ng Q -------0---

tz ttthay d6i

Nhlt vty dim lam vi~c cUa qUlt sa lit 1 h 2 dng vOi htu Juqng Q I ill c(lt Htnh 45 81 tbay d6i duong ~c dnh

khi dieu chinh qu~Lap H j gt Hz d) Di~u chinn hAng eltnh cua gklJng

d~ng

Chi ap dtmg dUltjc cho qu~t hlflmg trye va cfing pbru ch~ ~o trU(Jc df 00 tb dilu chlnh dutjc

u sl LAM vlEe SONG SONG vA N61 Tlip ellA QUAT

Qua trlnh lAm vi(tc song song bay niSi tieurop cua cae qut cOng gi6ng htt nhu cc bam

11~

__

5

f ~-----71( z

Hlnh 46 16 s1116m vi~c song song cda hal qu~t cO Ituimg dJc dnh khac nhau Trang truitng hQp nay eln ehu y ap hIe (chibu can cl)t ap) chung phli th4p h01l di4m A n~u cao hon thi qWJt eO dc tfnh thap 18 Q2 ~ H2 sa kh6ng cO htu IUJng nu)c du vAn quay Qut mQt dA th6r ~t qU-t bai

HH

b Q

Hinh 46 Dc dnh eua hai qut khac Hinh 47 Dtc tinh cUa hai qWJt nhau lAm vi~ song song gi6ng nhau JAm vic song song

Hlnh 47 Is Ill liim vi~c Oong song ella hai qUilt giling h~ nhau Neu d~ dnh III H thl khi lam vi~c song song se co hill IItt1ng nhi~u hem mcentt qut Neurou d$c tlnh t6n thlt lit H~ thi hai qu~t lam vifc song song cling chang nhieu hon m(tt qUlolt IS bao hhi~u Vi v~y n~n httang v~ dttctng H sfl kinh te han

47 CONG su(T DONG cO

Sao khi di dnh dUQc congo suit ctia qut lil N thl tbn uOng sulaquot d(tng co N d bullN

~-~ shy~

trong d6

N e6ng soat d~t Um ttI1C qu~t dnh thea di~u ki~n (47) kW

a ~ hlJ 56 tra bang (41)

I ~ h~ s6 hi$u d9ng truy~n d(mlr

1][ bull 1 bull truyen dcentng ttic tiep (t1lC cua dcentng Cd cung 11 cU3 q~t)

1 095 bAng khap m~m

III bull 09 b8ng dai thang

it = 085 bang dai dllt

114

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

I WpH = (1- + ) - (421)

I d ~ 2

trong do

t - ht 86 ma sat giOa htu th4 vdi thAnh 6ng

I d - chi~ dAl duttng Mnb 6ng dan m

L~ t5ng t1O hje CIlC bQ tren 6ng hut

W - v$n t6c dong htu th~ di trong 6ng ms

p bull kMi )ultlDg rlfng cd h1U tM kglm

H t citng eO tM tInh tit cOng thdc

H = LIn + LZ mmHo (422)

trong do

l - chf~u lttAt CUS do~ 6ng cO cung dubng kfnh m

R - h4 96 ma sat t~n m6i met 6ng ph thu(lc viW tift di~n fing va tun IUc1ng mmHO

cua khl (xem blnh 416) --- W2p m

Z ~ - mmHZO (423)2

H(J vi Hd tInh theo cang thdc (43)

l a --t $1 -

~

H~ ~ iif

I

bull ~

1

Hlnh 44 QUat lam vi~c bull eM d~ deuroy

cong sullt eua qUl)t dnb theo cOng thdc (47)

Hlnh 44 th~ hi~n ngu~n Ij efu ~o cua M th6ng qUlJt d8y Chi~u can cOt ap H du)c dnh thea cOng thdc

Ii = + HI mmIizO (424)H t

112

HI vl Hd ciing tfnh htdng ti nhu h th6ng qu~t hut Cong sullt ciing dnh tuong tl nhtt cOng thdc (47)

Fa == Ph - lip su(t khf quy~n bAng lip su1t hut

Pd - ap suat dy

(4lt25)

co nhi~u trubng hqp qUl(lt lim vi~ vlsi eh~ dl vila dty vua but Cae phep thh cung tUdng t~ nhu t[6n vii tfnh ci hai phla

Di~ chJnh hlu htl1ng Cllft qut 00 tM bang cae each sau dung van they d6i 86 vOng quay cblnh g6c nghi6ng cue canlt gu~ng hay chb ella bO din huang (nlaquou cO tbsect)

a) lJilu chinh btu lUQng bang van DAy la phuong pbap don giln nltt titu 11 vi vy no dU11c dug dllDg ~ng rAL Van

cO th6 dtt (J 6ng dlty hay 6ng hut Dtt a 6ng hilt thi nnh teuro hon Khi dong 116t hay md tUm van MInh ltl lam thay ddi dubng dtc tInb tlSn tMt H d djch chu~n di6m lAmt vi~ cUB q~t nhu vty tre ct$ htu JUQng vi ecentt ap thay d6i

b) Dilu chink bang thay ddi so vong quay DAy III phuong phlip kinh teuro nUt nhung cAn cd d)ng C(f thay dlSi v4n t6c holC bQ

truy~i1 d)ng cd thit thay dtSi dt~c 56 vbng quay cUa qut c) Thay ddt bAng di~u chlnh c6nh httdng dong

B~ canh nay thuang d~t d cua hut cua qut

HKhi ch~ tl10 dA lAm cho nd cd khA DAng toay dUQC khj cAn Phuong phlip nAy cling kinh teuro vA thulJng duQc tip dyng A

trong cOng nghi~p

Ph~ang phap nAy chlnh III Illm thay d6i dQ doc cue duang dlc tlnh Q ~ H (xem Hz--shyWoo 4lt5)lt

Dtlllng Q - H bay d6i dQ d6c khi s6 vbug quay gin nguy~n dilim A vln kh6ng Q -------0---

tz ttthay d6i

Nhlt vty dim lam vi~c cUa qUlt sa lit 1 h 2 dng vOi htu Juqng Q I ill c(lt Htnh 45 81 tbay d6i duong ~c dnh

khi dieu chinh qu~Lap H j gt Hz d) Di~u chinn hAng eltnh cua gklJng

d~ng

Chi ap dtmg dUltjc cho qu~t hlflmg trye va cfing pbru ch~ ~o trU(Jc df 00 tb dilu chlnh dutjc

u sl LAM vlEe SONG SONG vA N61 Tlip ellA QUAT

Qua trlnh lAm vi(tc song song bay niSi tieurop cua cae qut cOng gi6ng htt nhu cc bam

11~

__

5

f ~-----71( z

Hlnh 46 16 s1116m vi~c song song cda hal qu~t cO Ituimg dJc dnh khac nhau Trang truitng hQp nay eln ehu y ap hIe (chibu can cl)t ap) chung phli th4p h01l di4m A n~u cao hon thi qWJt eO dc tfnh thap 18 Q2 ~ H2 sa kh6ng cO htu IUJng nu)c du vAn quay Qut mQt dA th6r ~t qU-t bai

HH

b Q

Hinh 46 Dc dnh eua hai qut khac Hinh 47 Dtc tinh cUa hai qWJt nhau lAm vi~ song song gi6ng nhau JAm vic song song

Hlnh 47 Is Ill liim vi~c Oong song ella hai qUilt giling h~ nhau Neu d~ dnh III H thl khi lam vi~c song song se co hill IItt1ng nhi~u hem mcentt qut Neurou d$c tlnh t6n thlt lit H~ thi hai qu~t lam vifc song song cling chang nhieu hon m(tt qUlolt IS bao hhi~u Vi v~y n~n httang v~ dttctng H sfl kinh te han

47 CONG su(T DONG cO

Sao khi di dnh dUQc congo suit ctia qut lil N thl tbn uOng sulaquot d(tng co N d bullN

~-~ shy~

trong d6

N e6ng soat d~t Um ttI1C qu~t dnh thea di~u ki~n (47) kW

a ~ hlJ 56 tra bang (41)

I ~ h~ s6 hi$u d9ng truy~n d(mlr

1][ bull 1 bull truyen dcentng ttic tiep (t1lC cua dcentng Cd cung 11 cU3 q~t)

1 095 bAng khap m~m

III bull 09 b8ng dai thang

it = 085 bang dai dllt

114

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

HI vl Hd ciing tfnh htdng ti nhu h th6ng qu~t hut Cong sullt ciing dnh tuong tl nhtt cOng thdc (47)

Fa == Ph - lip su(t khf quy~n bAng lip su1t hut

Pd - ap suat dy

(4lt25)

co nhi~u trubng hqp qUl(lt lim vi~ vlsi eh~ dl vila dty vua but Cae phep thh cung tUdng t~ nhu t[6n vii tfnh ci hai phla

Di~ chJnh hlu htl1ng Cllft qut 00 tM bang cae each sau dung van they d6i 86 vOng quay cblnh g6c nghi6ng cue canlt gu~ng hay chb ella bO din huang (nlaquou cO tbsect)

a) lJilu chinh btu lUQng bang van DAy la phuong pbap don giln nltt titu 11 vi vy no dU11c dug dllDg ~ng rAL Van

cO th6 dtt (J 6ng dlty hay 6ng hut Dtt a 6ng hilt thi nnh teuro hon Khi dong 116t hay md tUm van MInh ltl lam thay ddi dubng dtc tInb tlSn tMt H d djch chu~n di6m lAmt vi~ cUB q~t nhu vty tre ct$ htu JUQng vi ecentt ap thay d6i

b) Dilu chink bang thay ddi so vong quay DAy III phuong phlip kinh teuro nUt nhung cAn cd d)ng C(f thay dlSi v4n t6c holC bQ

truy~i1 d)ng cd thit thay dtSi dt~c 56 vbng quay cUa qut c) Thay ddt bAng di~u chlnh c6nh httdng dong

B~ canh nay thuang d~t d cua hut cua qut

HKhi ch~ tl10 dA lAm cho nd cd khA DAng toay dUQC khj cAn Phuong phlip nAy cling kinh teuro vA thulJng duQc tip dyng A

trong cOng nghi~p

Ph~ang phap nAy chlnh III Illm thay d6i dQ doc cue duang dlc tlnh Q ~ H (xem Hz--shyWoo 4lt5)lt

Dtlllng Q - H bay d6i dQ d6c khi s6 vbug quay gin nguy~n dilim A vln kh6ng Q -------0---

tz ttthay d6i

Nhlt vty dim lam vi~c cUa qUlt sa lit 1 h 2 dng vOi htu Juqng Q I ill c(lt Htnh 45 81 tbay d6i duong ~c dnh

khi dieu chinh qu~Lap H j gt Hz d) Di~u chinn hAng eltnh cua gklJng

d~ng

Chi ap dtmg dUltjc cho qu~t hlflmg trye va cfing pbru ch~ ~o trU(Jc df 00 tb dilu chlnh dutjc

u sl LAM vlEe SONG SONG vA N61 Tlip ellA QUAT

Qua trlnh lAm vi(tc song song bay niSi tieurop cua cae qut cOng gi6ng htt nhu cc bam

11~

__

5

f ~-----71( z

Hlnh 46 16 s1116m vi~c song song cda hal qu~t cO Ituimg dJc dnh khac nhau Trang truitng hQp nay eln ehu y ap hIe (chibu can cl)t ap) chung phli th4p h01l di4m A n~u cao hon thi qWJt eO dc tfnh thap 18 Q2 ~ H2 sa kh6ng cO htu IUJng nu)c du vAn quay Qut mQt dA th6r ~t qU-t bai

HH

b Q

Hinh 46 Dc dnh eua hai qut khac Hinh 47 Dtc tinh cUa hai qWJt nhau lAm vi~ song song gi6ng nhau JAm vic song song

Hlnh 47 Is Ill liim vi~c Oong song ella hai qUilt giling h~ nhau Neu d~ dnh III H thl khi lam vi~c song song se co hill IItt1ng nhi~u hem mcentt qut Neurou d$c tlnh t6n thlt lit H~ thi hai qu~t lam vifc song song cling chang nhieu hon m(tt qUlolt IS bao hhi~u Vi v~y n~n httang v~ dttctng H sfl kinh te han

47 CONG su(T DONG cO

Sao khi di dnh dUQc congo suit ctia qut lil N thl tbn uOng sulaquot d(tng co N d bullN

~-~ shy~

trong d6

N e6ng soat d~t Um ttI1C qu~t dnh thea di~u ki~n (47) kW

a ~ hlJ 56 tra bang (41)

I ~ h~ s6 hi$u d9ng truy~n d(mlr

1][ bull 1 bull truyen dcentng ttic tiep (t1lC cua dcentng Cd cung 11 cU3 q~t)

1 095 bAng khap m~m

III bull 09 b8ng dai thang

it = 085 bang dai dllt

114

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

5

f ~-----71( z

Hlnh 46 16 s1116m vi~c song song cda hal qu~t cO Ituimg dJc dnh khac nhau Trang truitng hQp nay eln ehu y ap hIe (chibu can cl)t ap) chung phli th4p h01l di4m A n~u cao hon thi qWJt eO dc tfnh thap 18 Q2 ~ H2 sa kh6ng cO htu IUJng nu)c du vAn quay Qut mQt dA th6r ~t qU-t bai

HH

b Q

Hinh 46 Dc dnh eua hai qut khac Hinh 47 Dtc tinh cUa hai qWJt nhau lAm vi~ song song gi6ng nhau JAm vic song song

Hlnh 47 Is Ill liim vi~c Oong song ella hai qUilt giling h~ nhau Neu d~ dnh III H thl khi lam vi~c song song se co hill IItt1ng nhi~u hem mcentt qut Neurou d$c tlnh t6n thlt lit H~ thi hai qu~t lam vifc song song cling chang nhieu hon m(tt qUlolt IS bao hhi~u Vi v~y n~n httang v~ dttctng H sfl kinh te han

47 CONG su(T DONG cO

Sao khi di dnh dUQc congo suit ctia qut lil N thl tbn uOng sulaquot d(tng co N d bullN

~-~ shy~

trong d6

N e6ng soat d~t Um ttI1C qu~t dnh thea di~u ki~n (47) kW

a ~ hlJ 56 tra bang (41)

I ~ h~ s6 hi$u d9ng truy~n d(mlr

1][ bull 1 bull truyen dcentng ttic tiep (t1lC cua dcentng Cd cung 11 cU3 q~t)

1 095 bAng khap m~m

III bull 09 b8ng dai thang

it = 085 bang dai dllt

114

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

Bdng 41

_ _------ --------- f-co=middot=~8=suIf=1qualC-N~W_+_ a bull qurt Jy tfrm

ltCn 05 15

0$ - 2 l3

2middot$ 12

5middot10 ~15

tren to 11

a qual huttng tlVC

U ~

to 105

105

48 TiNH THIpoundr Kpound QU~T

Nhung kit 1u$n tit IY thuyet v~ bom ly tam hom hUOng tl1c hOOn tolLn dung cho qU$t Iy tam va huang trtlc 0 dAy chung ta chi cbu y tdi nhung th6ng sO de tlllng cho qutt nbu dlltJng kfnh ngoAi D2 cUa gubng dqng qu~t ly tAm bay dutlng ldnh dlnh canh trong qut hufng trvc Duong kfnh Dz duqc X8e dtnb thOng qua M siS e(it ap ii chUhJ cao cQt p H khOi htQng rieng p va 56 vong quay n

H H=- hay u -f H

pU~ 2 pJi-

JtnDz 60 = ms hay = -- UzU2 DzGO rrn

60 0D amp-shy m (427) Hn YpH

Dung klnh mieng hut Do xern nhtt gbn bAng dubng kinh trong D- cua gubng dcentng

d~c tDh theo phuong trinh 3~Q

Do Ko m 428) (gt nO K1)

trong do Q - htu 1U1ng cua qu~t m 3s

KI - h~ s6 h6t C

I bullKI _ = 035 eonst (429) U

Koo - h~ so phy th vAo gdc P2 (xem Mnh 341) tra a bang 42

Bdtig 42

+Plt~ P2gt~

~ 001 W40 3ll 1040

Koo 3 4 1 32

115

Phudng trinb (418) tfnb eho gubng dcentng hip clmgxon t~n trlc khOng cO 6ng lot l~m can tra ditn deb CttB but khi 4y v~n USc dOng khi Co di trong ci1a but dtt~ Hnh nhu sau

4Q m Co = -----2 - (430)

JtDt S

Khi eo 6ng lot v6i duong kfnh IS d thi thlbng kinh cIS hut gt ptuU Ian hon (Dn gt Do)

4Q V = +d bull m (431)o

trong do

A Oj7 1 lil h~ s6 chl)t b~pat o

DuOng kinh trong D eua gubng dcentng dUQc tfnh nhli san (tfnh cho dut1ng 6ng nAm gifla ~nh vilo)

(432) C = C

m 0l

Cnh Ao b 1 cUB Clinh gu~ng doh theo di~u ki~n

Q = m (483)b l

JtDtCmjl1

trong do

41 == 095 111 h~ s6 ch~t hill do cAnh gay n~n

Vai 101)1 eanh cong v pbla tnioc vA khi gia trj hN = 300 ~ 900 ta 00

OJ = (03 O4Wo voi Do = (025 035) Dz

== WJ4 O5)D vbi D (035 + 05)D1 (434)bl Sau khi xlic dnh n vgph dc dinh D 1 dttng tam gilie vn t6c deuro tim 31 WI sao

cho w ~ s 14 W

H~ $6 xOAn K z cua c$nh ra so va1 CIiluh van cUQ canh guhng phv thu()c vao d~ng eua Cttnh

C0 K2 = -- 05 + 08 vh 112 lt 900

U Co

K = __2 = 1 vlli 12 900 (435) U C

K2 = -- = 11 + 16 vOi 32 gt 900 U

116

Thm gi4c v-n t6c U 2bull W 2bull C2 (hinh 339) cho phep xac -inh gcie 132 c$nh b thee2

di~u ki~n

trong dd

02 ~ ehi~u dAy eanh (j ~nh ttl m

Z2 bull s6 canh

W 2 - ~n ttie t1ong d6i eua htu th~ ruts

Wz 2middot WI

Il 1 085 + 095 vai Do 06 D]

A2 080 + 090 vol Do 07Dz

112 075 085 vat Do 08Dzmiddot

VOi canh eong v~ trubc thl gia tri ~nh b2 14y Mn hon khi tinh dtltc ttl (436) mOt

86 canh Z cUll gubng d-centng ph thu~ vito b1bc canh t r(Dz + D 1)

t = bull m (U8) 2Z

Trong th1C teuro thttirng My bubc dnh nhb han chi~ dAi hUCfng klnh eua eAnh guhng ftW2 + D I )lR 2 ~ t (439)

2Z

hay ll

Z 2 D-+--DI D2 DlA

NgbIa II chlflJu dBJ khai tritn cda eaoh 11 sA IOn hon bttlJc clinh t

ll gt t

IMi vOi qlt hurng tllc thl Cic dlJC tinh H N 11 Iii ham eua Q ctlng gi6ng nh1 bom huang trl)c Q - H giam nhanh trong khi N giAm khOng dang k~ cOng IMt ti6u thv IA IOn nbllt khi Q 0 1J ghun nhanh sau di~m CI1c d~j

DuOng kfnh De ella dinh canh de dinb tit di~u ki~n

D - 13 VIi m (UI) em

bong deS

Q ~ htu ltil1ng cUa qUlt ro3fs

em = 8+ 10 ma 18 v4n t6c h116ng trllC

V$n tOO vong Uc t~n thti1ng Idnh De amp iit

U = 2~ Iii ma (442)

117

treng dO

R ~ lip sult do qut ~o ra mm H20

If h 56 phl thu()c r4ng ~nh

rp = 28 + 35 vm ~nh phAng

f1 = 22 + 28 wi canh congo

A

I nnI I

I)

I -

Cc m

A )

d) Hinh 48 Guing dQng qUQt huang trlc

a) gubng vil v6 b gOc nghiAng cua canh c) tam gilic ~n We d) khai lri euron m$t c4t ttV di qua A A

(443)

d ch6ng hn tM Uc lt 95 mls vl em n4n ill nhU sau em (025 + O40)Ue

(444) C - O3 + O55)U m e

Phult1tlg trlnh dhu cua (444) dung cho qutft hUCJng trye mQt cap phuong trlnh hai cho q~t hai clp

Dttang kInh bAu dnh Dj (dUltJng ldnh chAn canh xem hinh 48 ph thuQc vilu mt dQ canh lit e

118

1 Zl - = - is 1 (445)

t ifDi

thulrng ly E = 06 + 08

Khi da bi~t Q H vA Uta duh dtl(1c C tit phuong trlnhu IJp

H = -- mmHzO PC

(446)

trong do Pi P2 p $ut bit vA tUy cua qUllt huang trtc Nm2

Pi - kh6i htQng rifng cua kh (khOng knO kgim3bull U - v$n too vOng ms e - hlnh ehieu cua v~n t6c tuytt d6i t~n phuong mia Uu

Ap sul1t Ij thuy6t API mil qut to ra cbo khOng khi Huh theo di~u kitn sau

Mit AP + APm)middotKjKf nun H 20 (447)

6Pm - t6n tht ap htc ngay trong gu~ng d~ng 2JPgC

AP In 1 mm H20 (448)(I + v)e

v2 iii (D )2 D

Cy (05 + OS)Cy mu

Ke 105 + 11

ph11 thuQc vQQ kh(~ ho iK j

2pound (449)

i = 001 thl K j

11

002 15 2

003 135

Q04 150

005 170

006 180

007 200

H~ s6 hi~u d1ug auQC duh theo c6ng thuc I

~ = _ (450) H~nh 49 Cae tam giac v~ t6c K khi cana cong v~ phis truce

119

Chi~u rQng b cUll anh cdltIc dnh thee cong thuc D middotD

l = C I V bull m (451)

2

Gdc Ii dmtc Iie dinh tlwo di~ Id~n (452) xem blnh 48 vil blnh 49

gfl = (452) c

u- shy2

thay cae gie trl ~ diim 1 lJ c$nh vito vA difm 2 (J ~nh ra t8 tim

so I et

du(1c etc gOc p vi Pz G6c canh v du~c dnb nhtt seu

it1

Hi4u s-u4t chung FJ CUil qUllt

hUbng tT~c 00 gia tTt tit 50 d~n 80 tuy d~ 16n

fOO IiKfch thttac cAe chi tilft cua qut ly tAm tinh phl thu)c vao dubng kfnh D1 (xeru hlnh 410) Cae Idch thuac d~u Iii mill D2

49 CAC vi DIl Hinh 410 Cac kich thl10c cua q~t

Vi dt 1

Guhng dcentng ella qu~t ly tAm cO

DI = 480 mnt D z = 600 rnm Il = 1500 vgph Pit = 12 kgm3

W = 25 mls W = 22 mIs Ii = 60deg Ii = 120

HAy d11ng cae tam giac ~n t6c a C$nh vAo vi 1a cua cAnh gu~ng va xac dinh ehi~u cao ~ Ap If tbu~t HI

Blii gidi

Cae v$n t6c vang U t va U zgt tinh nhu AU

1 3140481500 c = 377 mJsUJ 60 60

bull

I ~

JI

q fOO ~ =0 12 IU

-10

f

314061500 471 mis

60

Dltng cae tam giac vGn t6c gi6ng d hlnh 410 vAxem phln hom ly tAm (nguytn lY gi6ng q~t Iy tAm) Cac thauh phln e duh tu tam giee v4n t6c u

Cu VI - WI coap = 377 ~ 25 cos60n = 252 tns I

120

e = ~ W2 eos32 471 - 22 eosl20n 581 mIsu2 Uz

Chi~u cao ccentt lip Ij thuyt tlnh nhl1 san 1 1

~ = - (U2Cu - U1C ) = - 47L 581 - 377 252) = ug 2 I 981

= 182 m cl)t khong khl hay dnh thea m H 20 nhtt san

12 182 prH PHzoHu Hh = iooo 0218 m HzQ

vi alJ 2

Cln nung nong kh6ng kh vei hiu htQ1ng 20000 kgh ttt 20degC l~n 1600C blng eAch

cho no chiy qua thiet bi trllO d6i nbH~t

HAy xtic djnh nang sulaquot lip suat cOng sullt etta qu~t khi lAp tntllc vi lp sau thitt hi trao d6i nhi~t T5n th~t thuy hie eua dong khOng khf eM) trong h~ tb6ng hi 120 mm H20 0 dfeu ki~n zooe vl Pk = 12 kgm3 HiZu suIt tong (j ci hai trubng hQp 1A nhu nhau 11 = 50

BlJi gidi

Kh6i lu~ng ~ng cUR kh6ng kh[ a 160ne 1 Pk bull 293

pTk = PkTk P~ IJ2~ 081 kgm (454)433

620degC thl chieu efta ccentt ap tinh eho khOng khi lA Hk pH 1000012

H ~ -- = = 100 m cot kh6ng kht Pk 12

Nhd da bi~t (j phlin dAu t6n thlaquot thuy hc ph thu~ vAG kh6i htfng ri~ng vA ty Icent b~c hal voi v~n t6c htu Itfc1ng Vi vay ttl st tfnh trong hai di~u kfQn

a) QUl1 ldp truDe thilt bi trao ddt nhiIt (quqt day) 30000GkQ = = 695 m3Js

3600 36ltlOI2

pfIQH 12981695100N ~ ------ ~ ---------- _ 1634 kW

1000~ 100005

b) Qugt lap sau (qul hrit) 30000OkQ flit =--c-- = 103 mJs

3600p 3600081

Pk Q 081 103 - (_)2 H - (-- )2100 = 148 m ecentt khbng kh1 Pk Q 12 SIiS

p-8QH 081981103148N = 1000~ ~ 100005 ~ 242 kW

121

PgHk 1180 pgH =plgH H = =--shy

pg 9811000

H = 0120 m HO = 120 mm H 20 981103120

N = - 242 kW cOng IiHln vAn theuro)1000 05

So sanh hai tntCtng h1p t9 cO N 242 -=--= 148 N 1634

Q 103 (455)-= - = 148

Q 695

P 12 -=-= 148

Pk 081

TIt (46)) ta rot 1R nh$n dt cOni guilt ti~u thl cho qUft do hut khang khi bi dlSt ndng ting len bao nhi~u l-n thl kh6i 1Uitng nang cua kh6ng khi ghim di blaquoy nhillu I~n 110 v(Si trtiJc khi d6t nong COng suit gia tAng dO lit do qut phii hut theuro deh khOng kb 1m hdn

Do v~y d6i vbl h~ th6ng qUlt ta n~n lap qu~t i) vi trf mA kh~ng khf cO nhi~t d tUp nht trong M th6ng

410 cAc Ht TH6NG QUoT

4101 Phiin 1m)

H~ th6ng qU$1 ~m cd qut va cae duiJng 6Dg cimg nhung tb11t hi nam ~n duang ling TUy mye dich eli dtng rna h~ th6ng qut cO nhung laquom 891 khae nhau

41011 He tJt6ng klit btti

H~ th6ng hut bcent dung trong truong bQp san xuilt nito do eO sinh ra b1ti rruy quy mO (cd nhi~u bay it d6i tugng gAy bti) dnh cblaquot byi quy tnnh un lU~t mA llja chCn hf thong qut phil hltJp nhat Cae clutp hut phii co eiu UO vi l4p d~t dung thi mOi hut duQC heurot bli Trong h~ th6ng hut ~i dan giAn chi gl)m c() chlp hlit bli ong hut qUltt

thit bl IAnII b Neurou bui l~ lAsAn pMm nhien thi no duQc tho bbi triot d au khi IAnII Vn t6c gi6 (glom kh6ng kh va bui) d ph hay chuP hUt vA trong dubng 6ng phil Urn hon vn tlSc lAng Clla blli Luu luJ1ng gi6 LUy Lhul)c vao htf1ng bvl din but Qu~t phi cd dtl hiu Jt1l1ng lip sulIt c6ng suit cln thiet Vt li4u eh4 ~o qUllt VIl M th6ng 6ng t~t bi phRi phil hl1P vCi Wng l()$i b1 tilt sit dyng dlJ1c Iltu dill

Ht th6ng hut hoi khI ~gt co d~u t1ilO tUltmg tl1 nhu M th6ng hut blli Khf dcentC phai dttqc thu b~i bO$c xu Iy khOng khJ 8$-ch m61 du(lc xi ra ngoaJ

H$ th6ng 1-n chu~n cac nguy~n U~u co kieh thtt()c nho nhtf bQt cam trliu mun CUB tban Ciim vv cung co cAu tl10 tU(1ng t1 nhtt M th6ng hut blti

122

Hlnh 411 tbd hiin au ~o cUR h~ th6ng hut blli phtic ~P Cae MlP hut d~ phAi cd van d~ dl~u chlnh sao cho chyp nAo cllng hilt dliQC h~t bti TiEt di~n 6ng hut chung lan dln thea $1 gia tang ella s6 chllP hut vA khOng thay d6i ttl eh6 dlaquou chl1p eu6i dh qu~t Ti~t din 6ng but cd th~ bi trim vuOng bfl4c chu nh~t

Hlrlh 411 Hcent lh6ng hut h9i hO$c san phm cd kfch thltOc nho I 2 3 4 - cae cb1p hut~ 5 - qut 6 thi6t h 14ng 7~ tbi~t hi L9C tw

8 9 - CRe b~ pb~n d

Vi~ dnh tdn thlit trfJ ltjc CUB hq th6ng qu~t ali d~ ~p lJ nl1C sau

Kbi hut h1i hoi dc eung dang thai lAm tMng gid cho phAn xuong phbng tM nghjtm IA nhftng noi sinh ra blli hay hdl dQc BiH vi hut blli hoi dOc tdc lA hut khOng khi ti vilng e6 b1i hdi d~ ntn khOng khl mm s qua cae etta chop tran vAn de tht1 eM

41012 Hf tb6ng IMraquoe gio lam mat

H~ th6ng thOng g6 lam mat du op dng khi nhi~t M khOng khl ngoai rbl IUp hGn nhi~t dcent kbong kbl trong phong hay phln xttang (xem hlnh 412)

cac di$m A B C D E F G tbl hin tng thai cUa khOng khL Cae thOng s6 cUa chung t~n db tbi I della kMng kbi hlnh 413 dilng d~ tinh nhi~t ch() qua trlnh th6ng gid Ttt k~t qua Hnh nhi~t ta bi~t dttqc htu htqng khOng kh tuln hoan trong h th6ng th6ng gi6 Tit cJu ~o Cl th~ min M th6ng thong gin ta dnh dUQc USn tht lip hic t~n cac tuyen Unh diu Sau khi tlnh dUQc IUn ht~ng va cOt ap ta d~ dAng tra dutJc qUllt

phu h1p hoi)c thit1t k~ en ~o mOL

N~u xem t6n tht nhi~t tren dttong elng IS khOng dang keuro cd the bO qua thl t~ng thlii cda cAe diem G _ Ai B 1pound C E )5 F

Khi khOng dung d6t nong thl CrAb db thl b hlnh 413 di6ru A E F G Khi do quit trlnh th6ng girl s~ til dim B bOa trQn v(ii D thanh E di vaa phong (htli tritong phon luang) l~i thlnh B 0 dAy ta khong di aAu qua trinh thflng gio rna chi dia 1a M th6ng tfnh qUt (xem tat Ii~u [31) H4 th6ng thCng gio nhtt bloh 412 gbm h~ thdng vita hut vita dlaquoy cua qut 5 viia hut vita tUy cUR qUllt 7 fuyfn hut eOA qUft j Iii lu bcenti trubng 8 tuy~n dy tit qu~t qua 6ng ifly d1n huang phAn chis 3 qua 6ng 2 ra nguai

123

2 J 9

~ o

7 8

Hn 412 H~ th6ng thOng gid Jam mat 1 bull ling llCy kh6ng kh( Qeh 2 ~ 6ng thAi 3 - bubng phAn chis kh6ng khf thAi

4 bubng boa tr~n 5 - qut 6 hQi trllbng cln thOng gio 7 qu~t

8 ~ bet phn lQC b1li mili 9 - thilit hi d6t ndng

I

d -------- tf

Rlnk 413 Dmg thai cUa khOng khi trong h~ thong thOng gi6 di~m D - treng th4i thOng kbl ngtIai troi difm B - tl3Dg thai khOng khi h1e

rlti phung di4m E - di~m hOa t~n dieurom A - aau khi d6t ndng

124

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

Thm gi4c v-n t6c U 2bull W 2bull C2 (hinh 339) cho phep xac -inh gcie 132 c$nh b thee2

di~u ki~n

trong dd

02 ~ ehi~u dAy eanh (j ~nh ttl m

Z2 bull s6 canh

W 2 - ~n ttie t1ong d6i eua htu th~ ruts

Wz 2middot WI

Il 1 085 + 095 vai Do 06 D]

A2 080 + 090 vol Do 07Dz

112 075 085 vat Do 08Dzmiddot

VOi canh eong v~ trubc thl gia tri ~nh b2 14y Mn hon khi tinh dtltc ttl (436) mOt

86 canh Z cUll gubng d-centng ph thu~ vito b1bc canh t r(Dz + D 1)

t = bull m (U8) 2Z

Trong th1C teuro thttirng My bubc dnh nhb han chi~ dAi hUCfng klnh eua eAnh guhng ftW2 + D I )lR 2 ~ t (439)

2Z

hay ll

Z 2 D-+--DI D2 DlA

NgbIa II chlflJu dBJ khai tritn cda eaoh 11 sA IOn hon bttlJc clinh t

ll gt t

IMi vOi qlt hurng tllc thl Cic dlJC tinh H N 11 Iii ham eua Q ctlng gi6ng nh1 bom huang trl)c Q - H giam nhanh trong khi N giAm khOng dang k~ cOng IMt ti6u thv IA IOn nbllt khi Q 0 1J ghun nhanh sau di~m CI1c d~j

DuOng kfnh De ella dinh canh de dinb tit di~u ki~n

D - 13 VIi m (UI) em

bong deS

Q ~ htu ltil1ng cUa qUlt ro3fs

em = 8+ 10 ma 18 v4n t6c h116ng trllC

V$n tOO vong Uc t~n thti1ng Idnh De amp iit

U = 2~ Iii ma (442)

117

treng dO

R ~ lip sult do qut ~o ra mm H20

If h 56 phl thu()c r4ng ~nh

rp = 28 + 35 vm ~nh phAng

f1 = 22 + 28 wi canh congo

A

I nnI I

I)

I -

Cc m

A )

d) Hinh 48 Guing dQng qUQt huang trlc

a) gubng vil v6 b gOc nghiAng cua canh c) tam gilic ~n We d) khai lri euron m$t c4t ttV di qua A A

(443)

d ch6ng hn tM Uc lt 95 mls vl em n4n ill nhU sau em (025 + O40)Ue

(444) C - O3 + O55)U m e

Phult1tlg trlnh dhu cua (444) dung cho qutft hUCJng trye mQt cap phuong trlnh hai cho q~t hai clp

Dttang kInh bAu dnh Dj (dUltJng ldnh chAn canh xem hinh 48 ph thuQc vilu mt dQ canh lit e

118

1 Zl - = - is 1 (445)

t ifDi

thulrng ly E = 06 + 08

Khi da bi~t Q H vA Uta duh dtl(1c C tit phuong trlnhu IJp

H = -- mmHzO PC

(446)

trong do Pi P2 p $ut bit vA tUy cua qUllt huang trtc Nm2

Pi - kh6i htQng rifng cua kh (khOng knO kgim3bull U - v$n too vOng ms e - hlnh ehieu cua v~n t6c tuytt d6i t~n phuong mia Uu

Ap sul1t Ij thuy6t API mil qut to ra cbo khOng khi Huh theo di~u kitn sau

Mit AP + APm)middotKjKf nun H 20 (447)

6Pm - t6n tht ap htc ngay trong gu~ng d~ng 2JPgC

AP In 1 mm H20 (448)(I + v)e

v2 iii (D )2 D

Cy (05 + OS)Cy mu

Ke 105 + 11

ph11 thuQc vQQ kh(~ ho iK j

2pound (449)

i = 001 thl K j

11

002 15 2

003 135

Q04 150

005 170

006 180

007 200

H~ s6 hi~u d1ug auQC duh theo c6ng thuc I

~ = _ (450) H~nh 49 Cae tam giac v~ t6c K khi cana cong v~ phis truce

119

Chi~u rQng b cUll anh cdltIc dnh thee cong thuc D middotD

l = C I V bull m (451)

2

Gdc Ii dmtc Iie dinh tlwo di~ Id~n (452) xem blnh 48 vil blnh 49

gfl = (452) c

u- shy2

thay cae gie trl ~ diim 1 lJ c$nh vito vA difm 2 (J ~nh ra t8 tim

so I et

du(1c etc gOc p vi Pz G6c canh v du~c dnb nhtt seu

it1

Hi4u s-u4t chung FJ CUil qUllt

hUbng tT~c 00 gia tTt tit 50 d~n 80 tuy d~ 16n

fOO IiKfch thttac cAe chi tilft cua qut ly tAm tinh phl thu)c vao dubng kfnh D1 (xeru hlnh 410) Cae Idch thuac d~u Iii mill D2

49 CAC vi DIl Hinh 410 Cac kich thl10c cua q~t

Vi dt 1

Guhng dcentng ella qu~t ly tAm cO

DI = 480 mnt D z = 600 rnm Il = 1500 vgph Pit = 12 kgm3

W = 25 mls W = 22 mIs Ii = 60deg Ii = 120

HAy d11ng cae tam giac ~n t6c a C$nh vAo vi 1a cua cAnh gu~ng va xac dinh ehi~u cao ~ Ap If tbu~t HI

Blii gidi

Cae v$n t6c vang U t va U zgt tinh nhu AU

1 3140481500 c = 377 mJsUJ 60 60

bull

I ~

JI

q fOO ~ =0 12 IU

-10

f

314061500 471 mis

60

Dltng cae tam giac vGn t6c gi6ng d hlnh 410 vAxem phln hom ly tAm (nguytn lY gi6ng q~t Iy tAm) Cac thauh phln e duh tu tam giee v4n t6c u

Cu VI - WI coap = 377 ~ 25 cos60n = 252 tns I

120

e = ~ W2 eos32 471 - 22 eosl20n 581 mIsu2 Uz

Chi~u cao ccentt lip Ij thuyt tlnh nhl1 san 1 1

~ = - (U2Cu - U1C ) = - 47L 581 - 377 252) = ug 2 I 981

= 182 m cl)t khong khl hay dnh thea m H 20 nhtt san

12 182 prH PHzoHu Hh = iooo 0218 m HzQ

vi alJ 2

Cln nung nong kh6ng kh vei hiu htQ1ng 20000 kgh ttt 20degC l~n 1600C blng eAch

cho no chiy qua thiet bi trllO d6i nbH~t

HAy xtic djnh nang sulaquot lip suat cOng sullt etta qu~t khi lAp tntllc vi lp sau thitt hi trao d6i nhi~t T5n th~t thuy hie eua dong khOng khf eM) trong h~ tb6ng hi 120 mm H20 0 dfeu ki~n zooe vl Pk = 12 kgm3 HiZu suIt tong (j ci hai trubng hQp 1A nhu nhau 11 = 50

BlJi gidi

Kh6i lu~ng ~ng cUR kh6ng kh[ a 160ne 1 Pk bull 293

pTk = PkTk P~ IJ2~ 081 kgm (454)433

620degC thl chieu efta ccentt ap tinh eho khOng khi lA Hk pH 1000012

H ~ -- = = 100 m cot kh6ng kht Pk 12

Nhd da bi~t (j phlin dAu t6n thlaquot thuy hc ph thu~ vAG kh6i htfng ri~ng vA ty Icent b~c hal voi v~n t6c htu Itfc1ng Vi vay ttl st tfnh trong hai di~u kfQn

a) QUl1 ldp truDe thilt bi trao ddt nhiIt (quqt day) 30000GkQ = = 695 m3Js

3600 36ltlOI2

pfIQH 12981695100N ~ ------ ~ ---------- _ 1634 kW

1000~ 100005

b) Qugt lap sau (qul hrit) 30000OkQ flit =--c-- = 103 mJs

3600p 3600081

Pk Q 081 103 - (_)2 H - (-- )2100 = 148 m ecentt khbng kh1 Pk Q 12 SIiS

p-8QH 081981103148N = 1000~ ~ 100005 ~ 242 kW

121

PgHk 1180 pgH =plgH H = =--shy

pg 9811000

H = 0120 m HO = 120 mm H 20 981103120

N = - 242 kW cOng IiHln vAn theuro)1000 05

So sanh hai tntCtng h1p t9 cO N 242 -=--= 148 N 1634

Q 103 (455)-= - = 148

Q 695

P 12 -=-= 148

Pk 081

TIt (46)) ta rot 1R nh$n dt cOni guilt ti~u thl cho qUft do hut khang khi bi dlSt ndng ting len bao nhi~u l-n thl kh6i 1Uitng nang cua kh6ng khi ghim di blaquoy nhillu I~n 110 v(Si trtiJc khi d6t nong COng suit gia tAng dO lit do qut phii hut theuro deh khOng kb 1m hdn

Do v~y d6i vbl h~ th6ng qUlt ta n~n lap qu~t i) vi trf mA kh~ng khf cO nhi~t d tUp nht trong M th6ng

410 cAc Ht TH6NG QUoT

4101 Phiin 1m)

H~ th6ng qU$1 ~m cd qut va cae duiJng 6Dg cimg nhung tb11t hi nam ~n duang ling TUy mye dich eli dtng rna h~ th6ng qut cO nhung laquom 891 khae nhau

41011 He tJt6ng klit btti

H~ th6ng hut bcent dung trong truong bQp san xuilt nito do eO sinh ra b1ti rruy quy mO (cd nhi~u bay it d6i tugng gAy bti) dnh cblaquot byi quy tnnh un lU~t mA llja chCn hf thong qut phil hltJp nhat Cae clutp hut phii co eiu UO vi l4p d~t dung thi mOi hut duQC heurot bli Trong h~ th6ng hut ~i dan giAn chi gl)m c() chlp hlit bli ong hut qUltt

thit bl IAnII b Neurou bui l~ lAsAn pMm nhien thi no duQc tho bbi triot d au khi IAnII Vn t6c gi6 (glom kh6ng kh va bui) d ph hay chuP hUt vA trong dubng 6ng phil Urn hon vn tlSc lAng Clla blli Luu luJ1ng gi6 LUy Lhul)c vao htf1ng bvl din but Qu~t phi cd dtl hiu Jt1l1ng lip sulIt c6ng suit cln thiet Vt li4u eh4 ~o qUllt VIl M th6ng 6ng t~t bi phRi phil hl1P vCi Wng l()$i b1 tilt sit dyng dlJ1c Iltu dill

Ht th6ng hut hoi khI ~gt co d~u t1ilO tUltmg tl1 nhu M th6ng hut blli Khf dcentC phai dttqc thu b~i bO$c xu Iy khOng khJ 8$-ch m61 du(lc xi ra ngoaJ

H$ th6ng 1-n chu~n cac nguy~n U~u co kieh thtt()c nho nhtf bQt cam trliu mun CUB tban Ciim vv cung co cAu tl10 tU(1ng t1 nhtt M th6ng hut blti

122

Hlnh 411 tbd hiin au ~o cUR h~ th6ng hut blli phtic ~P Cae MlP hut d~ phAi cd van d~ dl~u chlnh sao cho chyp nAo cllng hilt dliQC h~t bti TiEt di~n 6ng hut chung lan dln thea $1 gia tang ella s6 chllP hut vA khOng thay d6i ttl eh6 dlaquou chl1p eu6i dh qu~t Ti~t din 6ng but cd th~ bi trim vuOng bfl4c chu nh~t

Hlrlh 411 Hcent lh6ng hut h9i hO$c san phm cd kfch thltOc nho I 2 3 4 - cae cb1p hut~ 5 - qut 6 thi6t h 14ng 7~ tbi~t hi L9C tw

8 9 - CRe b~ pb~n d

Vi~ dnh tdn thlit trfJ ltjc CUB hq th6ng qu~t ali d~ ~p lJ nl1C sau

Kbi hut h1i hoi dc eung dang thai lAm tMng gid cho phAn xuong phbng tM nghjtm IA nhftng noi sinh ra blli hay hdl dQc BiH vi hut blli hoi dOc tdc lA hut khOng khi ti vilng e6 b1i hdi d~ ntn khOng khl mm s qua cae etta chop tran vAn de tht1 eM

41012 Hf tb6ng IMraquoe gio lam mat

H~ th6ng thOng g6 lam mat du op dng khi nhi~t M khOng khl ngoai rbl IUp hGn nhi~t dcent kbong kbl trong phong hay phln xttang (xem hlnh 412)

cac di$m A B C D E F G tbl hin tng thai cUa khOng khL Cae thOng s6 cUa chung t~n db tbi I della kMng kbi hlnh 413 dilng d~ tinh nhi~t ch() qua trlnh th6ng gid Ttt k~t qua Hnh nhi~t ta bi~t dttqc htu htqng khOng kh tuln hoan trong h th6ng th6ng gi6 Tit cJu ~o Cl th~ min M th6ng thong gin ta dnh dUQc USn tht lip hic t~n cac tuyen Unh diu Sau khi tlnh dUQc IUn ht~ng va cOt ap ta d~ dAng tra dutJc qUllt

phu h1p hoi)c thit1t k~ en ~o mOL

N~u xem t6n tht nhi~t tren dttong elng IS khOng dang keuro cd the bO qua thl t~ng thlii cda cAe diem G _ Ai B 1pound C E )5 F

Khi khOng dung d6t nong thl CrAb db thl b hlnh 413 di6ru A E F G Khi do quit trlnh th6ng girl s~ til dim B bOa trQn v(ii D thanh E di vaa phong (htli tritong phon luang) l~i thlnh B 0 dAy ta khong di aAu qua trinh thflng gio rna chi dia 1a M th6ng tfnh qUt (xem tat Ii~u [31) H4 th6ng thCng gio nhtt bloh 412 gbm h~ thdng vita hut vita dlaquoy cua qut 5 viia hut vita tUy cUR qUllt 7 fuyfn hut eOA qUft j Iii lu bcenti trubng 8 tuy~n dy tit qu~t qua 6ng ifly d1n huang phAn chis 3 qua 6ng 2 ra nguai

123

2 J 9

~ o

7 8

Hn 412 H~ th6ng thOng gid Jam mat 1 bull ling llCy kh6ng kh( Qeh 2 ~ 6ng thAi 3 - bubng phAn chis kh6ng khf thAi

4 bubng boa tr~n 5 - qut 6 hQi trllbng cln thOng gio 7 qu~t

8 ~ bet phn lQC b1li mili 9 - thilit hi d6t ndng

I

d -------- tf

Rlnk 413 Dmg thai cUa khOng khi trong h~ thong thOng gi6 di~m D - treng th4i thOng kbl ngtIai troi difm B - tl3Dg thai khOng khi h1e

rlti phung di4m E - di~m hOa t~n dieurom A - aau khi d6t ndng

124

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

treng dO

R ~ lip sult do qut ~o ra mm H20

If h 56 phl thu()c r4ng ~nh

rp = 28 + 35 vm ~nh phAng

f1 = 22 + 28 wi canh congo

A

I nnI I

I)

I -

Cc m

A )

d) Hinh 48 Guing dQng qUQt huang trlc

a) gubng vil v6 b gOc nghiAng cua canh c) tam gilic ~n We d) khai lri euron m$t c4t ttV di qua A A

(443)

d ch6ng hn tM Uc lt 95 mls vl em n4n ill nhU sau em (025 + O40)Ue

(444) C - O3 + O55)U m e

Phult1tlg trlnh dhu cua (444) dung cho qutft hUCJng trye mQt cap phuong trlnh hai cho q~t hai clp

Dttang kInh bAu dnh Dj (dUltJng ldnh chAn canh xem hinh 48 ph thuQc vilu mt dQ canh lit e

118

1 Zl - = - is 1 (445)

t ifDi

thulrng ly E = 06 + 08

Khi da bi~t Q H vA Uta duh dtl(1c C tit phuong trlnhu IJp

H = -- mmHzO PC

(446)

trong do Pi P2 p $ut bit vA tUy cua qUllt huang trtc Nm2

Pi - kh6i htQng rifng cua kh (khOng knO kgim3bull U - v$n too vOng ms e - hlnh ehieu cua v~n t6c tuytt d6i t~n phuong mia Uu

Ap sul1t Ij thuy6t API mil qut to ra cbo khOng khi Huh theo di~u kitn sau

Mit AP + APm)middotKjKf nun H 20 (447)

6Pm - t6n tht ap htc ngay trong gu~ng d~ng 2JPgC

AP In 1 mm H20 (448)(I + v)e

v2 iii (D )2 D

Cy (05 + OS)Cy mu

Ke 105 + 11

ph11 thuQc vQQ kh(~ ho iK j

2pound (449)

i = 001 thl K j

11

002 15 2

003 135

Q04 150

005 170

006 180

007 200

H~ s6 hi~u d1ug auQC duh theo c6ng thuc I

~ = _ (450) H~nh 49 Cae tam giac v~ t6c K khi cana cong v~ phis truce

119

Chi~u rQng b cUll anh cdltIc dnh thee cong thuc D middotD

l = C I V bull m (451)

2

Gdc Ii dmtc Iie dinh tlwo di~ Id~n (452) xem blnh 48 vil blnh 49

gfl = (452) c

u- shy2

thay cae gie trl ~ diim 1 lJ c$nh vito vA difm 2 (J ~nh ra t8 tim

so I et

du(1c etc gOc p vi Pz G6c canh v du~c dnb nhtt seu

it1

Hi4u s-u4t chung FJ CUil qUllt

hUbng tT~c 00 gia tTt tit 50 d~n 80 tuy d~ 16n

fOO IiKfch thttac cAe chi tilft cua qut ly tAm tinh phl thu)c vao dubng kfnh D1 (xeru hlnh 410) Cae Idch thuac d~u Iii mill D2

49 CAC vi DIl Hinh 410 Cac kich thl10c cua q~t

Vi dt 1

Guhng dcentng ella qu~t ly tAm cO

DI = 480 mnt D z = 600 rnm Il = 1500 vgph Pit = 12 kgm3

W = 25 mls W = 22 mIs Ii = 60deg Ii = 120

HAy d11ng cae tam giac ~n t6c a C$nh vAo vi 1a cua cAnh gu~ng va xac dinh ehi~u cao ~ Ap If tbu~t HI

Blii gidi

Cae v$n t6c vang U t va U zgt tinh nhu AU

1 3140481500 c = 377 mJsUJ 60 60

bull

I ~

JI

q fOO ~ =0 12 IU

-10

f

314061500 471 mis

60

Dltng cae tam giac vGn t6c gi6ng d hlnh 410 vAxem phln hom ly tAm (nguytn lY gi6ng q~t Iy tAm) Cac thauh phln e duh tu tam giee v4n t6c u

Cu VI - WI coap = 377 ~ 25 cos60n = 252 tns I

120

e = ~ W2 eos32 471 - 22 eosl20n 581 mIsu2 Uz

Chi~u cao ccentt lip Ij thuyt tlnh nhl1 san 1 1

~ = - (U2Cu - U1C ) = - 47L 581 - 377 252) = ug 2 I 981

= 182 m cl)t khong khl hay dnh thea m H 20 nhtt san

12 182 prH PHzoHu Hh = iooo 0218 m HzQ

vi alJ 2

Cln nung nong kh6ng kh vei hiu htQ1ng 20000 kgh ttt 20degC l~n 1600C blng eAch

cho no chiy qua thiet bi trllO d6i nbH~t

HAy xtic djnh nang sulaquot lip suat cOng sullt etta qu~t khi lAp tntllc vi lp sau thitt hi trao d6i nhi~t T5n th~t thuy hie eua dong khOng khf eM) trong h~ tb6ng hi 120 mm H20 0 dfeu ki~n zooe vl Pk = 12 kgm3 HiZu suIt tong (j ci hai trubng hQp 1A nhu nhau 11 = 50

BlJi gidi

Kh6i lu~ng ~ng cUR kh6ng kh[ a 160ne 1 Pk bull 293

pTk = PkTk P~ IJ2~ 081 kgm (454)433

620degC thl chieu efta ccentt ap tinh eho khOng khi lA Hk pH 1000012

H ~ -- = = 100 m cot kh6ng kht Pk 12

Nhd da bi~t (j phlin dAu t6n thlaquot thuy hc ph thu~ vAG kh6i htfng ri~ng vA ty Icent b~c hal voi v~n t6c htu Itfc1ng Vi vay ttl st tfnh trong hai di~u kfQn

a) QUl1 ldp truDe thilt bi trao ddt nhiIt (quqt day) 30000GkQ = = 695 m3Js

3600 36ltlOI2

pfIQH 12981695100N ~ ------ ~ ---------- _ 1634 kW

1000~ 100005

b) Qugt lap sau (qul hrit) 30000OkQ flit =--c-- = 103 mJs

3600p 3600081

Pk Q 081 103 - (_)2 H - (-- )2100 = 148 m ecentt khbng kh1 Pk Q 12 SIiS

p-8QH 081981103148N = 1000~ ~ 100005 ~ 242 kW

121

PgHk 1180 pgH =plgH H = =--shy

pg 9811000

H = 0120 m HO = 120 mm H 20 981103120

N = - 242 kW cOng IiHln vAn theuro)1000 05

So sanh hai tntCtng h1p t9 cO N 242 -=--= 148 N 1634

Q 103 (455)-= - = 148

Q 695

P 12 -=-= 148

Pk 081

TIt (46)) ta rot 1R nh$n dt cOni guilt ti~u thl cho qUft do hut khang khi bi dlSt ndng ting len bao nhi~u l-n thl kh6i 1Uitng nang cua kh6ng khi ghim di blaquoy nhillu I~n 110 v(Si trtiJc khi d6t nong COng suit gia tAng dO lit do qut phii hut theuro deh khOng kb 1m hdn

Do v~y d6i vbl h~ th6ng qUlt ta n~n lap qu~t i) vi trf mA kh~ng khf cO nhi~t d tUp nht trong M th6ng

410 cAc Ht TH6NG QUoT

4101 Phiin 1m)

H~ th6ng qU$1 ~m cd qut va cae duiJng 6Dg cimg nhung tb11t hi nam ~n duang ling TUy mye dich eli dtng rna h~ th6ng qut cO nhung laquom 891 khae nhau

41011 He tJt6ng klit btti

H~ th6ng hut bcent dung trong truong bQp san xuilt nito do eO sinh ra b1ti rruy quy mO (cd nhi~u bay it d6i tugng gAy bti) dnh cblaquot byi quy tnnh un lU~t mA llja chCn hf thong qut phil hltJp nhat Cae clutp hut phii co eiu UO vi l4p d~t dung thi mOi hut duQC heurot bli Trong h~ th6ng hut ~i dan giAn chi gl)m c() chlp hlit bli ong hut qUltt

thit bl IAnII b Neurou bui l~ lAsAn pMm nhien thi no duQc tho bbi triot d au khi IAnII Vn t6c gi6 (glom kh6ng kh va bui) d ph hay chuP hUt vA trong dubng 6ng phil Urn hon vn tlSc lAng Clla blli Luu luJ1ng gi6 LUy Lhul)c vao htf1ng bvl din but Qu~t phi cd dtl hiu Jt1l1ng lip sulIt c6ng suit cln thiet Vt li4u eh4 ~o qUllt VIl M th6ng 6ng t~t bi phRi phil hl1P vCi Wng l()$i b1 tilt sit dyng dlJ1c Iltu dill

Ht th6ng hut hoi khI ~gt co d~u t1ilO tUltmg tl1 nhu M th6ng hut blli Khf dcentC phai dttqc thu b~i bO$c xu Iy khOng khJ 8$-ch m61 du(lc xi ra ngoaJ

H$ th6ng 1-n chu~n cac nguy~n U~u co kieh thtt()c nho nhtf bQt cam trliu mun CUB tban Ciim vv cung co cAu tl10 tU(1ng t1 nhtt M th6ng hut blti

122

Hlnh 411 tbd hiin au ~o cUR h~ th6ng hut blli phtic ~P Cae MlP hut d~ phAi cd van d~ dl~u chlnh sao cho chyp nAo cllng hilt dliQC h~t bti TiEt di~n 6ng hut chung lan dln thea $1 gia tang ella s6 chllP hut vA khOng thay d6i ttl eh6 dlaquou chl1p eu6i dh qu~t Ti~t din 6ng but cd th~ bi trim vuOng bfl4c chu nh~t

Hlrlh 411 Hcent lh6ng hut h9i hO$c san phm cd kfch thltOc nho I 2 3 4 - cae cb1p hut~ 5 - qut 6 thi6t h 14ng 7~ tbi~t hi L9C tw

8 9 - CRe b~ pb~n d

Vi~ dnh tdn thlit trfJ ltjc CUB hq th6ng qu~t ali d~ ~p lJ nl1C sau

Kbi hut h1i hoi dc eung dang thai lAm tMng gid cho phAn xuong phbng tM nghjtm IA nhftng noi sinh ra blli hay hdl dQc BiH vi hut blli hoi dOc tdc lA hut khOng khi ti vilng e6 b1i hdi d~ ntn khOng khl mm s qua cae etta chop tran vAn de tht1 eM

41012 Hf tb6ng IMraquoe gio lam mat

H~ th6ng thOng g6 lam mat du op dng khi nhi~t M khOng khl ngoai rbl IUp hGn nhi~t dcent kbong kbl trong phong hay phln xttang (xem hlnh 412)

cac di$m A B C D E F G tbl hin tng thai cUa khOng khL Cae thOng s6 cUa chung t~n db tbi I della kMng kbi hlnh 413 dilng d~ tinh nhi~t ch() qua trlnh th6ng gid Ttt k~t qua Hnh nhi~t ta bi~t dttqc htu htqng khOng kh tuln hoan trong h th6ng th6ng gi6 Tit cJu ~o Cl th~ min M th6ng thong gin ta dnh dUQc USn tht lip hic t~n cac tuyen Unh diu Sau khi tlnh dUQc IUn ht~ng va cOt ap ta d~ dAng tra dutJc qUllt

phu h1p hoi)c thit1t k~ en ~o mOL

N~u xem t6n tht nhi~t tren dttong elng IS khOng dang keuro cd the bO qua thl t~ng thlii cda cAe diem G _ Ai B 1pound C E )5 F

Khi khOng dung d6t nong thl CrAb db thl b hlnh 413 di6ru A E F G Khi do quit trlnh th6ng girl s~ til dim B bOa trQn v(ii D thanh E di vaa phong (htli tritong phon luang) l~i thlnh B 0 dAy ta khong di aAu qua trinh thflng gio rna chi dia 1a M th6ng tfnh qUt (xem tat Ii~u [31) H4 th6ng thCng gio nhtt bloh 412 gbm h~ thdng vita hut vita dlaquoy cua qut 5 viia hut vita tUy cUR qUllt 7 fuyfn hut eOA qUft j Iii lu bcenti trubng 8 tuy~n dy tit qu~t qua 6ng ifly d1n huang phAn chis 3 qua 6ng 2 ra nguai

123

2 J 9

~ o

7 8

Hn 412 H~ th6ng thOng gid Jam mat 1 bull ling llCy kh6ng kh( Qeh 2 ~ 6ng thAi 3 - bubng phAn chis kh6ng khf thAi

4 bubng boa tr~n 5 - qut 6 hQi trllbng cln thOng gio 7 qu~t

8 ~ bet phn lQC b1li mili 9 - thilit hi d6t ndng

I

d -------- tf

Rlnk 413 Dmg thai cUa khOng khi trong h~ thong thOng gi6 di~m D - treng th4i thOng kbl ngtIai troi difm B - tl3Dg thai khOng khi h1e

rlti phung di4m E - di~m hOa t~n dieurom A - aau khi d6t ndng

124

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

1 Zl - = - is 1 (445)

t ifDi

thulrng ly E = 06 + 08

Khi da bi~t Q H vA Uta duh dtl(1c C tit phuong trlnhu IJp

H = -- mmHzO PC

(446)

trong do Pi P2 p $ut bit vA tUy cua qUllt huang trtc Nm2

Pi - kh6i htQng rifng cua kh (khOng knO kgim3bull U - v$n too vOng ms e - hlnh ehieu cua v~n t6c tuytt d6i t~n phuong mia Uu

Ap sul1t Ij thuy6t API mil qut to ra cbo khOng khi Huh theo di~u kitn sau

Mit AP + APm)middotKjKf nun H 20 (447)

6Pm - t6n tht ap htc ngay trong gu~ng d~ng 2JPgC

AP In 1 mm H20 (448)(I + v)e

v2 iii (D )2 D

Cy (05 + OS)Cy mu

Ke 105 + 11

ph11 thuQc vQQ kh(~ ho iK j

2pound (449)

i = 001 thl K j

11

002 15 2

003 135

Q04 150

005 170

006 180

007 200

H~ s6 hi~u d1ug auQC duh theo c6ng thuc I

~ = _ (450) H~nh 49 Cae tam giac v~ t6c K khi cana cong v~ phis truce

119

Chi~u rQng b cUll anh cdltIc dnh thee cong thuc D middotD

l = C I V bull m (451)

2

Gdc Ii dmtc Iie dinh tlwo di~ Id~n (452) xem blnh 48 vil blnh 49

gfl = (452) c

u- shy2

thay cae gie trl ~ diim 1 lJ c$nh vito vA difm 2 (J ~nh ra t8 tim

so I et

du(1c etc gOc p vi Pz G6c canh v du~c dnb nhtt seu

it1

Hi4u s-u4t chung FJ CUil qUllt

hUbng tT~c 00 gia tTt tit 50 d~n 80 tuy d~ 16n

fOO IiKfch thttac cAe chi tilft cua qut ly tAm tinh phl thu)c vao dubng kfnh D1 (xeru hlnh 410) Cae Idch thuac d~u Iii mill D2

49 CAC vi DIl Hinh 410 Cac kich thl10c cua q~t

Vi dt 1

Guhng dcentng ella qu~t ly tAm cO

DI = 480 mnt D z = 600 rnm Il = 1500 vgph Pit = 12 kgm3

W = 25 mls W = 22 mIs Ii = 60deg Ii = 120

HAy d11ng cae tam giac ~n t6c a C$nh vAo vi 1a cua cAnh gu~ng va xac dinh ehi~u cao ~ Ap If tbu~t HI

Blii gidi

Cae v$n t6c vang U t va U zgt tinh nhu AU

1 3140481500 c = 377 mJsUJ 60 60

bull

I ~

JI

q fOO ~ =0 12 IU

-10

f

314061500 471 mis

60

Dltng cae tam giac vGn t6c gi6ng d hlnh 410 vAxem phln hom ly tAm (nguytn lY gi6ng q~t Iy tAm) Cac thauh phln e duh tu tam giee v4n t6c u

Cu VI - WI coap = 377 ~ 25 cos60n = 252 tns I

120

e = ~ W2 eos32 471 - 22 eosl20n 581 mIsu2 Uz

Chi~u cao ccentt lip Ij thuyt tlnh nhl1 san 1 1

~ = - (U2Cu - U1C ) = - 47L 581 - 377 252) = ug 2 I 981

= 182 m cl)t khong khl hay dnh thea m H 20 nhtt san

12 182 prH PHzoHu Hh = iooo 0218 m HzQ

vi alJ 2

Cln nung nong kh6ng kh vei hiu htQ1ng 20000 kgh ttt 20degC l~n 1600C blng eAch

cho no chiy qua thiet bi trllO d6i nbH~t

HAy xtic djnh nang sulaquot lip suat cOng sullt etta qu~t khi lAp tntllc vi lp sau thitt hi trao d6i nhi~t T5n th~t thuy hie eua dong khOng khf eM) trong h~ tb6ng hi 120 mm H20 0 dfeu ki~n zooe vl Pk = 12 kgm3 HiZu suIt tong (j ci hai trubng hQp 1A nhu nhau 11 = 50

BlJi gidi

Kh6i lu~ng ~ng cUR kh6ng kh[ a 160ne 1 Pk bull 293

pTk = PkTk P~ IJ2~ 081 kgm (454)433

620degC thl chieu efta ccentt ap tinh eho khOng khi lA Hk pH 1000012

H ~ -- = = 100 m cot kh6ng kht Pk 12

Nhd da bi~t (j phlin dAu t6n thlaquot thuy hc ph thu~ vAG kh6i htfng ri~ng vA ty Icent b~c hal voi v~n t6c htu Itfc1ng Vi vay ttl st tfnh trong hai di~u kfQn

a) QUl1 ldp truDe thilt bi trao ddt nhiIt (quqt day) 30000GkQ = = 695 m3Js

3600 36ltlOI2

pfIQH 12981695100N ~ ------ ~ ---------- _ 1634 kW

1000~ 100005

b) Qugt lap sau (qul hrit) 30000OkQ flit =--c-- = 103 mJs

3600p 3600081

Pk Q 081 103 - (_)2 H - (-- )2100 = 148 m ecentt khbng kh1 Pk Q 12 SIiS

p-8QH 081981103148N = 1000~ ~ 100005 ~ 242 kW

121

PgHk 1180 pgH =plgH H = =--shy

pg 9811000

H = 0120 m HO = 120 mm H 20 981103120

N = - 242 kW cOng IiHln vAn theuro)1000 05

So sanh hai tntCtng h1p t9 cO N 242 -=--= 148 N 1634

Q 103 (455)-= - = 148

Q 695

P 12 -=-= 148

Pk 081

TIt (46)) ta rot 1R nh$n dt cOni guilt ti~u thl cho qUft do hut khang khi bi dlSt ndng ting len bao nhi~u l-n thl kh6i 1Uitng nang cua kh6ng khi ghim di blaquoy nhillu I~n 110 v(Si trtiJc khi d6t nong COng suit gia tAng dO lit do qut phii hut theuro deh khOng kb 1m hdn

Do v~y d6i vbl h~ th6ng qUlt ta n~n lap qu~t i) vi trf mA kh~ng khf cO nhi~t d tUp nht trong M th6ng

410 cAc Ht TH6NG QUoT

4101 Phiin 1m)

H~ th6ng qU$1 ~m cd qut va cae duiJng 6Dg cimg nhung tb11t hi nam ~n duang ling TUy mye dich eli dtng rna h~ th6ng qut cO nhung laquom 891 khae nhau

41011 He tJt6ng klit btti

H~ th6ng hut bcent dung trong truong bQp san xuilt nito do eO sinh ra b1ti rruy quy mO (cd nhi~u bay it d6i tugng gAy bti) dnh cblaquot byi quy tnnh un lU~t mA llja chCn hf thong qut phil hltJp nhat Cae clutp hut phii co eiu UO vi l4p d~t dung thi mOi hut duQC heurot bli Trong h~ th6ng hut ~i dan giAn chi gl)m c() chlp hlit bli ong hut qUltt

thit bl IAnII b Neurou bui l~ lAsAn pMm nhien thi no duQc tho bbi triot d au khi IAnII Vn t6c gi6 (glom kh6ng kh va bui) d ph hay chuP hUt vA trong dubng 6ng phil Urn hon vn tlSc lAng Clla blli Luu luJ1ng gi6 LUy Lhul)c vao htf1ng bvl din but Qu~t phi cd dtl hiu Jt1l1ng lip sulIt c6ng suit cln thiet Vt li4u eh4 ~o qUllt VIl M th6ng 6ng t~t bi phRi phil hl1P vCi Wng l()$i b1 tilt sit dyng dlJ1c Iltu dill

Ht th6ng hut hoi khI ~gt co d~u t1ilO tUltmg tl1 nhu M th6ng hut blli Khf dcentC phai dttqc thu b~i bO$c xu Iy khOng khJ 8$-ch m61 du(lc xi ra ngoaJ

H$ th6ng 1-n chu~n cac nguy~n U~u co kieh thtt()c nho nhtf bQt cam trliu mun CUB tban Ciim vv cung co cAu tl10 tU(1ng t1 nhtt M th6ng hut blti

122

Hlnh 411 tbd hiin au ~o cUR h~ th6ng hut blli phtic ~P Cae MlP hut d~ phAi cd van d~ dl~u chlnh sao cho chyp nAo cllng hilt dliQC h~t bti TiEt di~n 6ng hut chung lan dln thea $1 gia tang ella s6 chllP hut vA khOng thay d6i ttl eh6 dlaquou chl1p eu6i dh qu~t Ti~t din 6ng but cd th~ bi trim vuOng bfl4c chu nh~t

Hlrlh 411 Hcent lh6ng hut h9i hO$c san phm cd kfch thltOc nho I 2 3 4 - cae cb1p hut~ 5 - qut 6 thi6t h 14ng 7~ tbi~t hi L9C tw

8 9 - CRe b~ pb~n d

Vi~ dnh tdn thlit trfJ ltjc CUB hq th6ng qu~t ali d~ ~p lJ nl1C sau

Kbi hut h1i hoi dc eung dang thai lAm tMng gid cho phAn xuong phbng tM nghjtm IA nhftng noi sinh ra blli hay hdl dQc BiH vi hut blli hoi dOc tdc lA hut khOng khi ti vilng e6 b1i hdi d~ ntn khOng khl mm s qua cae etta chop tran vAn de tht1 eM

41012 Hf tb6ng IMraquoe gio lam mat

H~ th6ng thOng g6 lam mat du op dng khi nhi~t M khOng khl ngoai rbl IUp hGn nhi~t dcent kbong kbl trong phong hay phln xttang (xem hlnh 412)

cac di$m A B C D E F G tbl hin tng thai cUa khOng khL Cae thOng s6 cUa chung t~n db tbi I della kMng kbi hlnh 413 dilng d~ tinh nhi~t ch() qua trlnh th6ng gid Ttt k~t qua Hnh nhi~t ta bi~t dttqc htu htqng khOng kh tuln hoan trong h th6ng th6ng gi6 Tit cJu ~o Cl th~ min M th6ng thong gin ta dnh dUQc USn tht lip hic t~n cac tuyen Unh diu Sau khi tlnh dUQc IUn ht~ng va cOt ap ta d~ dAng tra dutJc qUllt

phu h1p hoi)c thit1t k~ en ~o mOL

N~u xem t6n tht nhi~t tren dttong elng IS khOng dang keuro cd the bO qua thl t~ng thlii cda cAe diem G _ Ai B 1pound C E )5 F

Khi khOng dung d6t nong thl CrAb db thl b hlnh 413 di6ru A E F G Khi do quit trlnh th6ng girl s~ til dim B bOa trQn v(ii D thanh E di vaa phong (htli tritong phon luang) l~i thlnh B 0 dAy ta khong di aAu qua trinh thflng gio rna chi dia 1a M th6ng tfnh qUt (xem tat Ii~u [31) H4 th6ng thCng gio nhtt bloh 412 gbm h~ thdng vita hut vita dlaquoy cua qut 5 viia hut vita tUy cUR qUllt 7 fuyfn hut eOA qUft j Iii lu bcenti trubng 8 tuy~n dy tit qu~t qua 6ng ifly d1n huang phAn chis 3 qua 6ng 2 ra nguai

123

2 J 9

~ o

7 8

Hn 412 H~ th6ng thOng gid Jam mat 1 bull ling llCy kh6ng kh( Qeh 2 ~ 6ng thAi 3 - bubng phAn chis kh6ng khf thAi

4 bubng boa tr~n 5 - qut 6 hQi trllbng cln thOng gio 7 qu~t

8 ~ bet phn lQC b1li mili 9 - thilit hi d6t ndng

I

d -------- tf

Rlnk 413 Dmg thai cUa khOng khi trong h~ thong thOng gi6 di~m D - treng th4i thOng kbl ngtIai troi difm B - tl3Dg thai khOng khi h1e

rlti phung di4m E - di~m hOa t~n dieurom A - aau khi d6t ndng

124

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

Chi~u rQng b cUll anh cdltIc dnh thee cong thuc D middotD

l = C I V bull m (451)

2

Gdc Ii dmtc Iie dinh tlwo di~ Id~n (452) xem blnh 48 vil blnh 49

gfl = (452) c

u- shy2

thay cae gie trl ~ diim 1 lJ c$nh vito vA difm 2 (J ~nh ra t8 tim

so I et

du(1c etc gOc p vi Pz G6c canh v du~c dnb nhtt seu

it1

Hi4u s-u4t chung FJ CUil qUllt

hUbng tT~c 00 gia tTt tit 50 d~n 80 tuy d~ 16n

fOO IiKfch thttac cAe chi tilft cua qut ly tAm tinh phl thu)c vao dubng kfnh D1 (xeru hlnh 410) Cae Idch thuac d~u Iii mill D2

49 CAC vi DIl Hinh 410 Cac kich thl10c cua q~t

Vi dt 1

Guhng dcentng ella qu~t ly tAm cO

DI = 480 mnt D z = 600 rnm Il = 1500 vgph Pit = 12 kgm3

W = 25 mls W = 22 mIs Ii = 60deg Ii = 120

HAy d11ng cae tam giac ~n t6c a C$nh vAo vi 1a cua cAnh gu~ng va xac dinh ehi~u cao ~ Ap If tbu~t HI

Blii gidi

Cae v$n t6c vang U t va U zgt tinh nhu AU

1 3140481500 c = 377 mJsUJ 60 60

bull

I ~

JI

q fOO ~ =0 12 IU

-10

f

314061500 471 mis

60

Dltng cae tam giac vGn t6c gi6ng d hlnh 410 vAxem phln hom ly tAm (nguytn lY gi6ng q~t Iy tAm) Cac thauh phln e duh tu tam giee v4n t6c u

Cu VI - WI coap = 377 ~ 25 cos60n = 252 tns I

120

e = ~ W2 eos32 471 - 22 eosl20n 581 mIsu2 Uz

Chi~u cao ccentt lip Ij thuyt tlnh nhl1 san 1 1

~ = - (U2Cu - U1C ) = - 47L 581 - 377 252) = ug 2 I 981

= 182 m cl)t khong khl hay dnh thea m H 20 nhtt san

12 182 prH PHzoHu Hh = iooo 0218 m HzQ

vi alJ 2

Cln nung nong kh6ng kh vei hiu htQ1ng 20000 kgh ttt 20degC l~n 1600C blng eAch

cho no chiy qua thiet bi trllO d6i nbH~t

HAy xtic djnh nang sulaquot lip suat cOng sullt etta qu~t khi lAp tntllc vi lp sau thitt hi trao d6i nhi~t T5n th~t thuy hie eua dong khOng khf eM) trong h~ tb6ng hi 120 mm H20 0 dfeu ki~n zooe vl Pk = 12 kgm3 HiZu suIt tong (j ci hai trubng hQp 1A nhu nhau 11 = 50

BlJi gidi

Kh6i lu~ng ~ng cUR kh6ng kh[ a 160ne 1 Pk bull 293

pTk = PkTk P~ IJ2~ 081 kgm (454)433

620degC thl chieu efta ccentt ap tinh eho khOng khi lA Hk pH 1000012

H ~ -- = = 100 m cot kh6ng kht Pk 12

Nhd da bi~t (j phlin dAu t6n thlaquot thuy hc ph thu~ vAG kh6i htfng ri~ng vA ty Icent b~c hal voi v~n t6c htu Itfc1ng Vi vay ttl st tfnh trong hai di~u kfQn

a) QUl1 ldp truDe thilt bi trao ddt nhiIt (quqt day) 30000GkQ = = 695 m3Js

3600 36ltlOI2

pfIQH 12981695100N ~ ------ ~ ---------- _ 1634 kW

1000~ 100005

b) Qugt lap sau (qul hrit) 30000OkQ flit =--c-- = 103 mJs

3600p 3600081

Pk Q 081 103 - (_)2 H - (-- )2100 = 148 m ecentt khbng kh1 Pk Q 12 SIiS

p-8QH 081981103148N = 1000~ ~ 100005 ~ 242 kW

121

PgHk 1180 pgH =plgH H = =--shy

pg 9811000

H = 0120 m HO = 120 mm H 20 981103120

N = - 242 kW cOng IiHln vAn theuro)1000 05

So sanh hai tntCtng h1p t9 cO N 242 -=--= 148 N 1634

Q 103 (455)-= - = 148

Q 695

P 12 -=-= 148

Pk 081

TIt (46)) ta rot 1R nh$n dt cOni guilt ti~u thl cho qUft do hut khang khi bi dlSt ndng ting len bao nhi~u l-n thl kh6i 1Uitng nang cua kh6ng khi ghim di blaquoy nhillu I~n 110 v(Si trtiJc khi d6t nong COng suit gia tAng dO lit do qut phii hut theuro deh khOng kb 1m hdn

Do v~y d6i vbl h~ th6ng qUlt ta n~n lap qu~t i) vi trf mA kh~ng khf cO nhi~t d tUp nht trong M th6ng

410 cAc Ht TH6NG QUoT

4101 Phiin 1m)

H~ th6ng qU$1 ~m cd qut va cae duiJng 6Dg cimg nhung tb11t hi nam ~n duang ling TUy mye dich eli dtng rna h~ th6ng qut cO nhung laquom 891 khae nhau

41011 He tJt6ng klit btti

H~ th6ng hut bcent dung trong truong bQp san xuilt nito do eO sinh ra b1ti rruy quy mO (cd nhi~u bay it d6i tugng gAy bti) dnh cblaquot byi quy tnnh un lU~t mA llja chCn hf thong qut phil hltJp nhat Cae clutp hut phii co eiu UO vi l4p d~t dung thi mOi hut duQC heurot bli Trong h~ th6ng hut ~i dan giAn chi gl)m c() chlp hlit bli ong hut qUltt

thit bl IAnII b Neurou bui l~ lAsAn pMm nhien thi no duQc tho bbi triot d au khi IAnII Vn t6c gi6 (glom kh6ng kh va bui) d ph hay chuP hUt vA trong dubng 6ng phil Urn hon vn tlSc lAng Clla blli Luu luJ1ng gi6 LUy Lhul)c vao htf1ng bvl din but Qu~t phi cd dtl hiu Jt1l1ng lip sulIt c6ng suit cln thiet Vt li4u eh4 ~o qUllt VIl M th6ng 6ng t~t bi phRi phil hl1P vCi Wng l()$i b1 tilt sit dyng dlJ1c Iltu dill

Ht th6ng hut hoi khI ~gt co d~u t1ilO tUltmg tl1 nhu M th6ng hut blli Khf dcentC phai dttqc thu b~i bO$c xu Iy khOng khJ 8$-ch m61 du(lc xi ra ngoaJ

H$ th6ng 1-n chu~n cac nguy~n U~u co kieh thtt()c nho nhtf bQt cam trliu mun CUB tban Ciim vv cung co cAu tl10 tU(1ng t1 nhtt M th6ng hut blti

122

Hlnh 411 tbd hiin au ~o cUR h~ th6ng hut blli phtic ~P Cae MlP hut d~ phAi cd van d~ dl~u chlnh sao cho chyp nAo cllng hilt dliQC h~t bti TiEt di~n 6ng hut chung lan dln thea $1 gia tang ella s6 chllP hut vA khOng thay d6i ttl eh6 dlaquou chl1p eu6i dh qu~t Ti~t din 6ng but cd th~ bi trim vuOng bfl4c chu nh~t

Hlrlh 411 Hcent lh6ng hut h9i hO$c san phm cd kfch thltOc nho I 2 3 4 - cae cb1p hut~ 5 - qut 6 thi6t h 14ng 7~ tbi~t hi L9C tw

8 9 - CRe b~ pb~n d

Vi~ dnh tdn thlit trfJ ltjc CUB hq th6ng qu~t ali d~ ~p lJ nl1C sau

Kbi hut h1i hoi dc eung dang thai lAm tMng gid cho phAn xuong phbng tM nghjtm IA nhftng noi sinh ra blli hay hdl dQc BiH vi hut blli hoi dOc tdc lA hut khOng khi ti vilng e6 b1i hdi d~ ntn khOng khl mm s qua cae etta chop tran vAn de tht1 eM

41012 Hf tb6ng IMraquoe gio lam mat

H~ th6ng thOng g6 lam mat du op dng khi nhi~t M khOng khl ngoai rbl IUp hGn nhi~t dcent kbong kbl trong phong hay phln xttang (xem hlnh 412)

cac di$m A B C D E F G tbl hin tng thai cUa khOng khL Cae thOng s6 cUa chung t~n db tbi I della kMng kbi hlnh 413 dilng d~ tinh nhi~t ch() qua trlnh th6ng gid Ttt k~t qua Hnh nhi~t ta bi~t dttqc htu htqng khOng kh tuln hoan trong h th6ng th6ng gi6 Tit cJu ~o Cl th~ min M th6ng thong gin ta dnh dUQc USn tht lip hic t~n cac tuyen Unh diu Sau khi tlnh dUQc IUn ht~ng va cOt ap ta d~ dAng tra dutJc qUllt

phu h1p hoi)c thit1t k~ en ~o mOL

N~u xem t6n tht nhi~t tren dttong elng IS khOng dang keuro cd the bO qua thl t~ng thlii cda cAe diem G _ Ai B 1pound C E )5 F

Khi khOng dung d6t nong thl CrAb db thl b hlnh 413 di6ru A E F G Khi do quit trlnh th6ng girl s~ til dim B bOa trQn v(ii D thanh E di vaa phong (htli tritong phon luang) l~i thlnh B 0 dAy ta khong di aAu qua trinh thflng gio rna chi dia 1a M th6ng tfnh qUt (xem tat Ii~u [31) H4 th6ng thCng gio nhtt bloh 412 gbm h~ thdng vita hut vita dlaquoy cua qut 5 viia hut vita tUy cUR qUllt 7 fuyfn hut eOA qUft j Iii lu bcenti trubng 8 tuy~n dy tit qu~t qua 6ng ifly d1n huang phAn chis 3 qua 6ng 2 ra nguai

123

2 J 9

~ o

7 8

Hn 412 H~ th6ng thOng gid Jam mat 1 bull ling llCy kh6ng kh( Qeh 2 ~ 6ng thAi 3 - bubng phAn chis kh6ng khf thAi

4 bubng boa tr~n 5 - qut 6 hQi trllbng cln thOng gio 7 qu~t

8 ~ bet phn lQC b1li mili 9 - thilit hi d6t ndng

I

d -------- tf

Rlnk 413 Dmg thai cUa khOng khi trong h~ thong thOng gi6 di~m D - treng th4i thOng kbl ngtIai troi difm B - tl3Dg thai khOng khi h1e

rlti phung di4m E - di~m hOa t~n dieurom A - aau khi d6t ndng

124

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

e = ~ W2 eos32 471 - 22 eosl20n 581 mIsu2 Uz

Chi~u cao ccentt lip Ij thuyt tlnh nhl1 san 1 1

~ = - (U2Cu - U1C ) = - 47L 581 - 377 252) = ug 2 I 981

= 182 m cl)t khong khl hay dnh thea m H 20 nhtt san

12 182 prH PHzoHu Hh = iooo 0218 m HzQ

vi alJ 2

Cln nung nong kh6ng kh vei hiu htQ1ng 20000 kgh ttt 20degC l~n 1600C blng eAch

cho no chiy qua thiet bi trllO d6i nbH~t

HAy xtic djnh nang sulaquot lip suat cOng sullt etta qu~t khi lAp tntllc vi lp sau thitt hi trao d6i nhi~t T5n th~t thuy hie eua dong khOng khf eM) trong h~ tb6ng hi 120 mm H20 0 dfeu ki~n zooe vl Pk = 12 kgm3 HiZu suIt tong (j ci hai trubng hQp 1A nhu nhau 11 = 50

BlJi gidi

Kh6i lu~ng ~ng cUR kh6ng kh[ a 160ne 1 Pk bull 293

pTk = PkTk P~ IJ2~ 081 kgm (454)433

620degC thl chieu efta ccentt ap tinh eho khOng khi lA Hk pH 1000012

H ~ -- = = 100 m cot kh6ng kht Pk 12

Nhd da bi~t (j phlin dAu t6n thlaquot thuy hc ph thu~ vAG kh6i htfng ri~ng vA ty Icent b~c hal voi v~n t6c htu Itfc1ng Vi vay ttl st tfnh trong hai di~u kfQn

a) QUl1 ldp truDe thilt bi trao ddt nhiIt (quqt day) 30000GkQ = = 695 m3Js

3600 36ltlOI2

pfIQH 12981695100N ~ ------ ~ ---------- _ 1634 kW

1000~ 100005

b) Qugt lap sau (qul hrit) 30000OkQ flit =--c-- = 103 mJs

3600p 3600081

Pk Q 081 103 - (_)2 H - (-- )2100 = 148 m ecentt khbng kh1 Pk Q 12 SIiS

p-8QH 081981103148N = 1000~ ~ 100005 ~ 242 kW

121

PgHk 1180 pgH =plgH H = =--shy

pg 9811000

H = 0120 m HO = 120 mm H 20 981103120

N = - 242 kW cOng IiHln vAn theuro)1000 05

So sanh hai tntCtng h1p t9 cO N 242 -=--= 148 N 1634

Q 103 (455)-= - = 148

Q 695

P 12 -=-= 148

Pk 081

TIt (46)) ta rot 1R nh$n dt cOni guilt ti~u thl cho qUft do hut khang khi bi dlSt ndng ting len bao nhi~u l-n thl kh6i 1Uitng nang cua kh6ng khi ghim di blaquoy nhillu I~n 110 v(Si trtiJc khi d6t nong COng suit gia tAng dO lit do qut phii hut theuro deh khOng kb 1m hdn

Do v~y d6i vbl h~ th6ng qUlt ta n~n lap qu~t i) vi trf mA kh~ng khf cO nhi~t d tUp nht trong M th6ng

410 cAc Ht TH6NG QUoT

4101 Phiin 1m)

H~ th6ng qU$1 ~m cd qut va cae duiJng 6Dg cimg nhung tb11t hi nam ~n duang ling TUy mye dich eli dtng rna h~ th6ng qut cO nhung laquom 891 khae nhau

41011 He tJt6ng klit btti

H~ th6ng hut bcent dung trong truong bQp san xuilt nito do eO sinh ra b1ti rruy quy mO (cd nhi~u bay it d6i tugng gAy bti) dnh cblaquot byi quy tnnh un lU~t mA llja chCn hf thong qut phil hltJp nhat Cae clutp hut phii co eiu UO vi l4p d~t dung thi mOi hut duQC heurot bli Trong h~ th6ng hut ~i dan giAn chi gl)m c() chlp hlit bli ong hut qUltt

thit bl IAnII b Neurou bui l~ lAsAn pMm nhien thi no duQc tho bbi triot d au khi IAnII Vn t6c gi6 (glom kh6ng kh va bui) d ph hay chuP hUt vA trong dubng 6ng phil Urn hon vn tlSc lAng Clla blli Luu luJ1ng gi6 LUy Lhul)c vao htf1ng bvl din but Qu~t phi cd dtl hiu Jt1l1ng lip sulIt c6ng suit cln thiet Vt li4u eh4 ~o qUllt VIl M th6ng 6ng t~t bi phRi phil hl1P vCi Wng l()$i b1 tilt sit dyng dlJ1c Iltu dill

Ht th6ng hut hoi khI ~gt co d~u t1ilO tUltmg tl1 nhu M th6ng hut blli Khf dcentC phai dttqc thu b~i bO$c xu Iy khOng khJ 8$-ch m61 du(lc xi ra ngoaJ

H$ th6ng 1-n chu~n cac nguy~n U~u co kieh thtt()c nho nhtf bQt cam trliu mun CUB tban Ciim vv cung co cAu tl10 tU(1ng t1 nhtt M th6ng hut blti

122

Hlnh 411 tbd hiin au ~o cUR h~ th6ng hut blli phtic ~P Cae MlP hut d~ phAi cd van d~ dl~u chlnh sao cho chyp nAo cllng hilt dliQC h~t bti TiEt di~n 6ng hut chung lan dln thea $1 gia tang ella s6 chllP hut vA khOng thay d6i ttl eh6 dlaquou chl1p eu6i dh qu~t Ti~t din 6ng but cd th~ bi trim vuOng bfl4c chu nh~t

Hlrlh 411 Hcent lh6ng hut h9i hO$c san phm cd kfch thltOc nho I 2 3 4 - cae cb1p hut~ 5 - qut 6 thi6t h 14ng 7~ tbi~t hi L9C tw

8 9 - CRe b~ pb~n d

Vi~ dnh tdn thlit trfJ ltjc CUB hq th6ng qu~t ali d~ ~p lJ nl1C sau

Kbi hut h1i hoi dc eung dang thai lAm tMng gid cho phAn xuong phbng tM nghjtm IA nhftng noi sinh ra blli hay hdl dQc BiH vi hut blli hoi dOc tdc lA hut khOng khi ti vilng e6 b1i hdi d~ ntn khOng khl mm s qua cae etta chop tran vAn de tht1 eM

41012 Hf tb6ng IMraquoe gio lam mat

H~ th6ng thOng g6 lam mat du op dng khi nhi~t M khOng khl ngoai rbl IUp hGn nhi~t dcent kbong kbl trong phong hay phln xttang (xem hlnh 412)

cac di$m A B C D E F G tbl hin tng thai cUa khOng khL Cae thOng s6 cUa chung t~n db tbi I della kMng kbi hlnh 413 dilng d~ tinh nhi~t ch() qua trlnh th6ng gid Ttt k~t qua Hnh nhi~t ta bi~t dttqc htu htqng khOng kh tuln hoan trong h th6ng th6ng gi6 Tit cJu ~o Cl th~ min M th6ng thong gin ta dnh dUQc USn tht lip hic t~n cac tuyen Unh diu Sau khi tlnh dUQc IUn ht~ng va cOt ap ta d~ dAng tra dutJc qUllt

phu h1p hoi)c thit1t k~ en ~o mOL

N~u xem t6n tht nhi~t tren dttong elng IS khOng dang keuro cd the bO qua thl t~ng thlii cda cAe diem G _ Ai B 1pound C E )5 F

Khi khOng dung d6t nong thl CrAb db thl b hlnh 413 di6ru A E F G Khi do quit trlnh th6ng girl s~ til dim B bOa trQn v(ii D thanh E di vaa phong (htli tritong phon luang) l~i thlnh B 0 dAy ta khong di aAu qua trinh thflng gio rna chi dia 1a M th6ng tfnh qUt (xem tat Ii~u [31) H4 th6ng thCng gio nhtt bloh 412 gbm h~ thdng vita hut vita dlaquoy cua qut 5 viia hut vita tUy cUR qUllt 7 fuyfn hut eOA qUft j Iii lu bcenti trubng 8 tuy~n dy tit qu~t qua 6ng ifly d1n huang phAn chis 3 qua 6ng 2 ra nguai

123

2 J 9

~ o

7 8

Hn 412 H~ th6ng thOng gid Jam mat 1 bull ling llCy kh6ng kh( Qeh 2 ~ 6ng thAi 3 - bubng phAn chis kh6ng khf thAi

4 bubng boa tr~n 5 - qut 6 hQi trllbng cln thOng gio 7 qu~t

8 ~ bet phn lQC b1li mili 9 - thilit hi d6t ndng

I

d -------- tf

Rlnk 413 Dmg thai cUa khOng khi trong h~ thong thOng gi6 di~m D - treng th4i thOng kbl ngtIai troi difm B - tl3Dg thai khOng khi h1e

rlti phung di4m E - di~m hOa t~n dieurom A - aau khi d6t ndng

124

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

PgHk 1180 pgH =plgH H = =--shy

pg 9811000

H = 0120 m HO = 120 mm H 20 981103120

N = - 242 kW cOng IiHln vAn theuro)1000 05

So sanh hai tntCtng h1p t9 cO N 242 -=--= 148 N 1634

Q 103 (455)-= - = 148

Q 695

P 12 -=-= 148

Pk 081

TIt (46)) ta rot 1R nh$n dt cOni guilt ti~u thl cho qUft do hut khang khi bi dlSt ndng ting len bao nhi~u l-n thl kh6i 1Uitng nang cua kh6ng khi ghim di blaquoy nhillu I~n 110 v(Si trtiJc khi d6t nong COng suit gia tAng dO lit do qut phii hut theuro deh khOng kb 1m hdn

Do v~y d6i vbl h~ th6ng qUlt ta n~n lap qu~t i) vi trf mA kh~ng khf cO nhi~t d tUp nht trong M th6ng

410 cAc Ht TH6NG QUoT

4101 Phiin 1m)

H~ th6ng qU$1 ~m cd qut va cae duiJng 6Dg cimg nhung tb11t hi nam ~n duang ling TUy mye dich eli dtng rna h~ th6ng qut cO nhung laquom 891 khae nhau

41011 He tJt6ng klit btti

H~ th6ng hut bcent dung trong truong bQp san xuilt nito do eO sinh ra b1ti rruy quy mO (cd nhi~u bay it d6i tugng gAy bti) dnh cblaquot byi quy tnnh un lU~t mA llja chCn hf thong qut phil hltJp nhat Cae clutp hut phii co eiu UO vi l4p d~t dung thi mOi hut duQC heurot bli Trong h~ th6ng hut ~i dan giAn chi gl)m c() chlp hlit bli ong hut qUltt

thit bl IAnII b Neurou bui l~ lAsAn pMm nhien thi no duQc tho bbi triot d au khi IAnII Vn t6c gi6 (glom kh6ng kh va bui) d ph hay chuP hUt vA trong dubng 6ng phil Urn hon vn tlSc lAng Clla blli Luu luJ1ng gi6 LUy Lhul)c vao htf1ng bvl din but Qu~t phi cd dtl hiu Jt1l1ng lip sulIt c6ng suit cln thiet Vt li4u eh4 ~o qUllt VIl M th6ng 6ng t~t bi phRi phil hl1P vCi Wng l()$i b1 tilt sit dyng dlJ1c Iltu dill

Ht th6ng hut hoi khI ~gt co d~u t1ilO tUltmg tl1 nhu M th6ng hut blli Khf dcentC phai dttqc thu b~i bO$c xu Iy khOng khJ 8$-ch m61 du(lc xi ra ngoaJ

H$ th6ng 1-n chu~n cac nguy~n U~u co kieh thtt()c nho nhtf bQt cam trliu mun CUB tban Ciim vv cung co cAu tl10 tU(1ng t1 nhtt M th6ng hut blti

122

Hlnh 411 tbd hiin au ~o cUR h~ th6ng hut blli phtic ~P Cae MlP hut d~ phAi cd van d~ dl~u chlnh sao cho chyp nAo cllng hilt dliQC h~t bti TiEt di~n 6ng hut chung lan dln thea $1 gia tang ella s6 chllP hut vA khOng thay d6i ttl eh6 dlaquou chl1p eu6i dh qu~t Ti~t din 6ng but cd th~ bi trim vuOng bfl4c chu nh~t

Hlrlh 411 Hcent lh6ng hut h9i hO$c san phm cd kfch thltOc nho I 2 3 4 - cae cb1p hut~ 5 - qut 6 thi6t h 14ng 7~ tbi~t hi L9C tw

8 9 - CRe b~ pb~n d

Vi~ dnh tdn thlit trfJ ltjc CUB hq th6ng qu~t ali d~ ~p lJ nl1C sau

Kbi hut h1i hoi dc eung dang thai lAm tMng gid cho phAn xuong phbng tM nghjtm IA nhftng noi sinh ra blli hay hdl dQc BiH vi hut blli hoi dOc tdc lA hut khOng khi ti vilng e6 b1i hdi d~ ntn khOng khl mm s qua cae etta chop tran vAn de tht1 eM

41012 Hf tb6ng IMraquoe gio lam mat

H~ th6ng thOng g6 lam mat du op dng khi nhi~t M khOng khl ngoai rbl IUp hGn nhi~t dcent kbong kbl trong phong hay phln xttang (xem hlnh 412)

cac di$m A B C D E F G tbl hin tng thai cUa khOng khL Cae thOng s6 cUa chung t~n db tbi I della kMng kbi hlnh 413 dilng d~ tinh nhi~t ch() qua trlnh th6ng gid Ttt k~t qua Hnh nhi~t ta bi~t dttqc htu htqng khOng kh tuln hoan trong h th6ng th6ng gi6 Tit cJu ~o Cl th~ min M th6ng thong gin ta dnh dUQc USn tht lip hic t~n cac tuyen Unh diu Sau khi tlnh dUQc IUn ht~ng va cOt ap ta d~ dAng tra dutJc qUllt

phu h1p hoi)c thit1t k~ en ~o mOL

N~u xem t6n tht nhi~t tren dttong elng IS khOng dang keuro cd the bO qua thl t~ng thlii cda cAe diem G _ Ai B 1pound C E )5 F

Khi khOng dung d6t nong thl CrAb db thl b hlnh 413 di6ru A E F G Khi do quit trlnh th6ng girl s~ til dim B bOa trQn v(ii D thanh E di vaa phong (htli tritong phon luang) l~i thlnh B 0 dAy ta khong di aAu qua trinh thflng gio rna chi dia 1a M th6ng tfnh qUt (xem tat Ii~u [31) H4 th6ng thCng gio nhtt bloh 412 gbm h~ thdng vita hut vita dlaquoy cua qut 5 viia hut vita tUy cUR qUllt 7 fuyfn hut eOA qUft j Iii lu bcenti trubng 8 tuy~n dy tit qu~t qua 6ng ifly d1n huang phAn chis 3 qua 6ng 2 ra nguai

123

2 J 9

~ o

7 8

Hn 412 H~ th6ng thOng gid Jam mat 1 bull ling llCy kh6ng kh( Qeh 2 ~ 6ng thAi 3 - bubng phAn chis kh6ng khf thAi

4 bubng boa tr~n 5 - qut 6 hQi trllbng cln thOng gio 7 qu~t

8 ~ bet phn lQC b1li mili 9 - thilit hi d6t ndng

I

d -------- tf

Rlnk 413 Dmg thai cUa khOng khi trong h~ thong thOng gi6 di~m D - treng th4i thOng kbl ngtIai troi difm B - tl3Dg thai khOng khi h1e

rlti phung di4m E - di~m hOa t~n dieurom A - aau khi d6t ndng

124

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

Hlnh 411 tbd hiin au ~o cUR h~ th6ng hut blli phtic ~P Cae MlP hut d~ phAi cd van d~ dl~u chlnh sao cho chyp nAo cllng hilt dliQC h~t bti TiEt di~n 6ng hut chung lan dln thea $1 gia tang ella s6 chllP hut vA khOng thay d6i ttl eh6 dlaquou chl1p eu6i dh qu~t Ti~t din 6ng but cd th~ bi trim vuOng bfl4c chu nh~t

Hlrlh 411 Hcent lh6ng hut h9i hO$c san phm cd kfch thltOc nho I 2 3 4 - cae cb1p hut~ 5 - qut 6 thi6t h 14ng 7~ tbi~t hi L9C tw

8 9 - CRe b~ pb~n d

Vi~ dnh tdn thlit trfJ ltjc CUB hq th6ng qu~t ali d~ ~p lJ nl1C sau

Kbi hut h1i hoi dc eung dang thai lAm tMng gid cho phAn xuong phbng tM nghjtm IA nhftng noi sinh ra blli hay hdl dQc BiH vi hut blli hoi dOc tdc lA hut khOng khi ti vilng e6 b1i hdi d~ ntn khOng khl mm s qua cae etta chop tran vAn de tht1 eM

41012 Hf tb6ng IMraquoe gio lam mat

H~ th6ng thOng g6 lam mat du op dng khi nhi~t M khOng khl ngoai rbl IUp hGn nhi~t dcent kbong kbl trong phong hay phln xttang (xem hlnh 412)

cac di$m A B C D E F G tbl hin tng thai cUa khOng khL Cae thOng s6 cUa chung t~n db tbi I della kMng kbi hlnh 413 dilng d~ tinh nhi~t ch() qua trlnh th6ng gid Ttt k~t qua Hnh nhi~t ta bi~t dttqc htu htqng khOng kh tuln hoan trong h th6ng th6ng gi6 Tit cJu ~o Cl th~ min M th6ng thong gin ta dnh dUQc USn tht lip hic t~n cac tuyen Unh diu Sau khi tlnh dUQc IUn ht~ng va cOt ap ta d~ dAng tra dutJc qUllt

phu h1p hoi)c thit1t k~ en ~o mOL

N~u xem t6n tht nhi~t tren dttong elng IS khOng dang keuro cd the bO qua thl t~ng thlii cda cAe diem G _ Ai B 1pound C E )5 F

Khi khOng dung d6t nong thl CrAb db thl b hlnh 413 di6ru A E F G Khi do quit trlnh th6ng girl s~ til dim B bOa trQn v(ii D thanh E di vaa phong (htli tritong phon luang) l~i thlnh B 0 dAy ta khong di aAu qua trinh thflng gio rna chi dia 1a M th6ng tfnh qUt (xem tat Ii~u [31) H4 th6ng thCng gio nhtt bloh 412 gbm h~ thdng vita hut vita dlaquoy cua qut 5 viia hut vita tUy cUR qUllt 7 fuyfn hut eOA qUft j Iii lu bcenti trubng 8 tuy~n dy tit qu~t qua 6ng ifly d1n huang phAn chis 3 qua 6ng 2 ra nguai

123

2 J 9

~ o

7 8

Hn 412 H~ th6ng thOng gid Jam mat 1 bull ling llCy kh6ng kh( Qeh 2 ~ 6ng thAi 3 - bubng phAn chis kh6ng khf thAi

4 bubng boa tr~n 5 - qut 6 hQi trllbng cln thOng gio 7 qu~t

8 ~ bet phn lQC b1li mili 9 - thilit hi d6t ndng

I

d -------- tf

Rlnk 413 Dmg thai cUa khOng khi trong h~ thong thOng gi6 di~m D - treng th4i thOng kbl ngtIai troi difm B - tl3Dg thai khOng khi h1e

rlti phung di4m E - di~m hOa t~n dieurom A - aau khi d6t ndng

124

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

2 J 9

~ o

7 8

Hn 412 H~ th6ng thOng gid Jam mat 1 bull ling llCy kh6ng kh( Qeh 2 ~ 6ng thAi 3 - bubng phAn chis kh6ng khf thAi

4 bubng boa tr~n 5 - qut 6 hQi trllbng cln thOng gio 7 qu~t

8 ~ bet phn lQC b1li mili 9 - thilit hi d6t ndng

I

d -------- tf

Rlnk 413 Dmg thai cUa khOng khi trong h~ thong thOng gi6 di~m D - treng th4i thOng kbl ngtIai troi difm B - tl3Dg thai khOng khi h1e

rlti phung di4m E - di~m hOa t~n dieurom A - aau khi d6t ndng

124

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

Tuy~n hut coo qUllt 7 gbm ling hilt 1 buang hM tr(m 4 thilaquot bi lQ( 8 thit hj d6t ndng 9 d~n Clla hut eua qUlJt tuy~n day cUa no tfnh ttt cUa dlaquoy dn hOi tNong 6 CAn cl vito cae tu~n cua m6i h~ th6ng q~t ta tinh du1C t6n thKt trlf hle eua chung

Ngooi M thong thOng gid dan thuan con co h~ th6ng di~u boa kh6ng khL

4HU3 H~ th6ng diw boo kbOng khi

Di-~u hM kbOng khi 1A ~o ra blu khOng khi cO nhi~t dcent va d( (m nhu y mutin bllt kl nhi~t d kh6ng khl ngoai trai IA nbtt th~ nAo Ngoampi ra bAu kMng khl do M th6ng dr~u hM trung tam bto re co chlft htqng cao khOng b11i khOng mui khOng chill d~ h~ kb6ng bn 1u6n 6n dinh Tit hinh 412 fa tap thlm M th6ng phun nubo Jnh co nhi~t d() khoAng 10degC vao giue thieurot hi lQC 8 lit thilt bi d6t nong 9 lA dil cd h~ tMng dieu hoa kh6ng khf trung tam Khi do cAe quA trlnh di~u boa kh6ng kh dttQc th~ hi~n ~ hlnh 414

I

[) t 35C_

~

Rink 414 Cae qua trlnh trong M th6ng d1~u boo khOng khf trung tAm cho mila he (j Vi(iot Nam

KhOng khf do dteu bOa trung tAm t~ 1a d~ dUll di sit dlog It trjJng thai di~m A eo t A 22uC lA = 65 (phltC vll cho ngltbO Khi ftfi h(l truong kh6ng kbI cO tr~ng thai diem B cO til = 26OC IPs = 65 Di~m E lii tr~ng thai khOng kh b buong hOa ti9n Di~m F JA khOng kh dA dU1C lm mat trong huong phun mua l~nh nhAn f4o Mu6n co nutlc btnh lJ Viet Nam vlo mua he can eo M th6ng l(1nh d lAm tSJfih nlJaC

tru~c khi phuo Vi~c dnh h th6ng qu~t trong di~u hba trung tAm cilng gi6ng nhl trong h~ th6ng th6ng gio (j runh 412 cOng tMm trb hie bubng phuo mUll

41014 Hi thong qvtt trong say dQ luu ph~ thu9c Van tau lQIo CfI t~ tlta titRg he Ih6ng sly

The nMn s~y mil h~ th6ng q~t cln pMJ ytn chuyt1n tily thucentC lAo nAng nit cta b~ th6ng MY doh chIt eun san phllm dy nic nb4n dy co th III khOng khi nong hofe khoi 1b H~nh 415 bi~u din ~ th6ng qu(tt My trong Ny d6i hiU bAng kh6ng khf ndng khOng hbi hlu kbl thai

125

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

QUlt 1 co nbi~m lrlJ eung elaquop day dtt hill lUr1ng do ruing su4t Slt1y y~u clu ep he eua qUfit phji lbn han t6ng trt hIe coa dubng 6ng kaloriphe burng y (chu y~u lit tw

11e cUR v$t lieu trong huang ~y)

-shym

Hinh 415 H~ thling qut day trong dy d6i hlU~ 1 - qU(lt My 2 ~ knloriphe 3 - bu~ng (hsectro) sl1y m ~ nguy~n Ji~u am

nl2 bull san phAm s~y

NgoAi h~ th6ng qu~t dlaquoy trong $Y dot hlu bAng khdi 10 thttifng III h~ th6ng qWlt hut hol)C v1ta hut viis diy

4102 Clie dng tro Ile trong M thong qut

D~ dnh dttJ1C USng t6n thltt tro l1jc CUa h~ th6ng qUflt ta phsl can eli vao cl(u 4-0 ell theuro cua dUClng 6ng va eae thieurot bj Up t~n duang 6ng htu ht9ng va v$n tlk euft kh6ng khl ehAy qua T6ng t6n that too lfc CUll m6i h thdng gQi 19 AP

AP AP J + llPz (456)

trong do

~ dAy

A ~ M s6 ma sat giittt dong khf vii 6ng

l d - chilu dai duang kinh 6ng m

~ - M s6 trir 11ic CllC b(

W - vfn t6e khang khi tTong ong ms

p bull kh6i IUllng ri~ng cua kh6ng khi kg mJ

llP2 - tdng ttSn thft trd htc eua cae thi~t bj nhu IQC bvJ van xycion bu~ng slly Vv bull

ciing co th~ ttnh nhlf sauR I

H = ~1R + ~Z mm H20 (4middot58)

trongdo

R ~ M 56 t6n thlit tra he do rna -t tren m6i met ang th~ng mmH20m tra da till hinh 416

Z ~ 1 tro IIJC elle bQ mmH20

126

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

Neurou 6ng din cd tUft din vuOng hay chil nMt thl dnh dllbng knh luong dfong 1i d ld thay cho d

2ab d bull bull -- m (459)

a + b trong dd

0 b bull cae qnh CUR ti~t difn 6ng m

-- Rmmftom

1raquo 1 Jgto ltI ~ 0

I~I ffij

la ~ t)gt

Hinh 416 CAe gill trl ella R ph~ thu(le vAo W va d V

127

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

Z 1il trd hje eye b~ nti phll thu~ vAo d~ng cl1u ~o ti cae dOl[ltt lSnr cong phAn nhanh~ thu Ioe Vv bullbull vii v4-n t6c cua dong chAy

IV z = t - ( mmHzO (460)

2g

trong d6

- h~ s6 tM Jtc CllC ~ tra bang 43

y - trQng lUlj1ng rieng eua ltbong khi Nm3

Quan M giita 2~ vB Z th~ hi~n b bang 44

Trong k thu$t thOng gio di~u h6a kMng khl trung tAm uy cae san phlaquom c~n dQ s~ cao baogib pbfa bllt cUa M thong qUlt ciing c6 thieurot b~ lQc blll kh~ ruut B1ll duqc phan lo~i theo kich thU(le va tlnh chlaquot

Then deh thu6e 18 cbis thitnh

- bti rlaquot nM cO klch thlbc dum 100um

- bld cO kieh tnudc tnng blnb dual 200 urn

- bli co kieh thuoc Ibn tr4in 200 Im

Mit dO blli eD trong kMng khf

- it dubi O05gm)

- trung blnh d~n 05 gm3

- cac tren O5gm3 Thea dnh ch~t cus b1li ta chia ra cae 10l1 bli khOI lilt to 8111 hut Am khong hut

fm dinh khong dinh

Can en vao tinh ch(t kch thuoc cua btJl nbng d~ bli trong khOng khi aau khi lqc rna chQn phuong phap vA thieurot b~ lqc cho phil hqp

a L()C b4ng v4t chdn xdp rdi

Lqe hAng vt chAn x6p bay bang mAn eMu tit cae s(Ii kim l~i phi kim l~i dui1C lAm roi u6n khuc lung tung Thi~t hi )Qe Day co th~ d~ khO tlt6i uCtt h~c nhung vile chIt dinb b1li

bl Uc bimg Iud Luoi co thf d$ phAng h lam thinh hlnh

elSe (hlnh tT c6 day) nhll hlnh 417 Kh6ng khl co nbng byi Ii C1 di qua luCri h1ti b giu lIti nbn x

fF- shynang d(l cua n6 cun lli IA C2 B1i dnh ngoai ---1-1-shyhiai duQc Jam a~eh dinh ky hol)c cho lum tlt

quay deuro tl rO blli bAng clt6i d Un m~t ngtls-t t - ~ ~~==l+ 2 -i-=V4n t6c quay cia lulli is 11 = Ivgl5 + 450

Thi~t bi 19C lo~ti nay co d(i lqr ~h bl)i fJ 90 j + 95 vA thuC1ng ap dlng eho kh6ng khf cO

nbog d bl1i ttl1ng blnh O5gmJ

Trb i1C eua luOi IQC 10i nAy Iil AI = 15 H~fIh 417 lAte hni

128

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

Bdng 43 Cae dlng tra hrc eye b(I

11 Cii1 ctgtlp

_---shy

RiD=1 O~ 075 1 15 2

3

4

shy = 1 O~ 025 OLraquo 01 01 01

~ _

III Ogtt _ 8

_---shy

0 RIB 05 075 I 2

1118 =025 lt= 04 025 02 01

OIlS _0$ lt= 05 O~ 0) 01 ----shy

V

WE -

RIB_I 0 I 02 I middot~~middotI 061 flIl 1 ~---~

-

I 08 0

VI1

ORID= 05 075 1

3mU1lt= l3 O~ 05

5nnl ltshy 1 Oli O~

IV cu ctgtlp 135

2m

6f a_ Ilf roo 45

01shy 005 02 05

D= 01 O~ 01 -shy --~

VI

IT)=J 0lI chip 00 nil pgtln dOOg

~ l35n

bVi

bfi0 __

n

15

O~ ~

0~5

60 _---shy

07

IJl

van=-middot I=Rf2o I

viR shyfi

=70+ SOmm

bull fJ CD Kllng_

2

0~5

O~

90

12

~

9middot~MN

56deg IJl 55 ~3 38deg 1Il8 33 0l3

0152

0136 0138 OI4Q 0140 O14U

--shy

129

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

x

nip bang 43

----~~- -~-~ ~~ ~~--~ -

VIII

I ~ -~~- 00 = L4 IltB = os I 075 l5 2

04 025 i 02

025 0 15 0

XI

~~

a= Ion 30deg 4~T 60deg I 9(fgt c ISO m~~~+~~~_~o ~ T90deg DO =

01 0) I 07 i III i L4-- I~f-r~-L~-T -----~- -------~- ----~~~---~-- ----~-- --__--shy

xutXII

bull =L4

-~~~--~

XlV XV

~ p ~~

0shy 09 0lt ~ i Os Rff) I0251 00 i 05

1 1

_ ~- Im 0lt = 01

~ = I02 I

O~5 i 005L2S 01

XVI xvn

a 08 1

130

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

Tidp bang 43

XVIII XIX

-cm]]shy

~015 o~o

bull = 1

XX XX1

-(I]1J

~ = 01

~ I Ii I --5--11-~1 ~I _----__middot __--1 --1-------- ___

XXII

fb-11

XXIII Ltr6i V3n 10e chAy qua ItIDJ tioo utn toan dtt llro

---shy ___shy

I 10 20

30 40 50 60 I 70_ 80 -

I I

110 30 12 6 36 2

III 1_ 120 13 611

41 27 21 0

~ i I2l 36 14 7 45 30 2 18

middotmiddotmiddotmiddotmiddot-middotmiddotmiddotmiddot-T~-

I I

13 39 155 i 7$ 4 32 25 9i 140 40 165 83 I 52 3~ 21gt zp

bull 131

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

bullbull

Bdng 44 Quan M gift Z va l m

6 7 9 103 4 S 8I 2wshy i~ g _

0(11 002 002 002 003001 001 00202 00 0jJ60(11 0(11 002 003 003 OD03 0112 Oil Oil

0p6 007 01000 005 OilS 00900404 0112 OPl oos 01 012009 01 01005 0iJ605 0112 OPl

0117 01 01 02 02 02 02200908 0il2 01J4 0fj6 02 02 o~ 033009 010 02 0207 0iJ3

0_ 0_G3os 008 01 02 02 02 G3004 03 03 o 04501 01 02 G3005o~ 0

0_ 05 06 066OjJ6 02 0301 0lt1 0

7 13G3 0$ l4 1602 o~ 01 o~16 z Ll Z 22 2_02 05 07 I 12 152

7 22 28 S 51gt11 33 3~3 01gt 4 45 52 6 67 752l 335 0$ 15 3~

39 4 6f)2i 7il 9il4 O 2P Sf 8il 81 99 11 2337 5 0245 12 25 7 10777 92 l3861 l22 1S35 l5 31 415 1541 17622 44 M 88 132II 19$ 226

27 3ltl3 6 9 12 15 18 2 I 247 196 235 275 315 38939 7$ 17 1S7 358

49525 295 345 3959 5 99 149 198 445 61 112 184 245 3ltl5 365 43 49 55 6110

65 70 79 8888 176 265 35 4412 84 9012 24 36 48 72 KJ8 120

125 141 151157 3lS 4 63 7 94 11016 n9 159 l7S 9818 198 395 59 7 99 119

25 49 735 98 112 147 244517l 196 22020

mmHzO ung vdi hlu htQng khOng khf 28OOm3Jm2h

c) Lf)C Mng Mng d4t (vai)

TUy kfch th116c bll mil ta chon vAi day hay thua Khung eang vii rttt da d~ng Htnh 418 th~ hi~n cdu ~o cua thiSt hi IQC la cae thung hinh n~m cAng vAi ghep lih ti~p Hinh 419 th~ hi~n nguy~n Ii Claquou t~o cua 19C tm Sau mOt then gian n~t dinh phai rU

b1i cho tui blng co c(u chuyan dung ====~02~Zgt V8i IQC bAng vii thl hiU htQng

m shycua gio tit 50 dl1n 50O--Z- c~

m h shy9 J va C2 IS nbng d b1li trnllc

va sau khi IQC

TrfI htc cUB 16p vtti s(lch (khi vAi IQc ebn ~ch) It Hs khi vii hi Hlnh 418 Lgc bAng khung viii blnh am bam blli 1amp H b

132

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

HI = ayen mm H20 (461)

H = (kCV Cp + a)V mmHO (462)

trong d6

a ~ h~ s6 ph thuOC vAo ImP vli

k bull h~ 86 phl thuQc lAo dlplg bli vii vai m3

V ~ pb1l tAl ri4~ng cUll thi~t hi lQc -Zh m

CJ ~ nbng dcent bll tt1(JC khl IQCj glm3

n - 86 mii Hinh 419 LQe tw

tmiddot thbi gian lQc h

Thbi gian 19c t (lil thci giampn giua hili Iln rii bli cho vAi IQc) duqc dnh theo cling thue sau

h (463)KVCfJ

trong d6

H - trd hJe sau thbi lian 19= mm H20

Cae h~ sO k a n P tra blng 45

Bang 45

--l--middot-middot_-r ---middotmiddot-I--lTrong (NI i

Thu~ Ten viti ViQ cO Ilia ll1lYng i lJ(u k a n P i mt1t ~ cun vatI

1m2 II -~-T~~nglU~~I-tm~dW--- - 43 len I 7l~ 15D31~3

2 i Len pound4t fua lrung bloh 300 Cact6ng~ l89(il(r1 53410 3

~ 3 Vruboo KMngrotua ~ 17) I Gay 9L-1O7 i Mm-3

4 vAl pha len Tua truns blnh i 355~~ I Len 119510-7 i 4J710middot3

5 vat bOng Ktk1nt cd tua I 3525 Giay 24501tr11 7)610- 3

_6~_~~~ d) Ltgtlt Mng gitiy ~

~ thift bj nay dU(jc au t40 lraquong each cAng phd 14n khung g6 hay khung kim 10lti m4y IlJp lienin hay Bitly IQC b1li xem hinb 420 lqe bang gilaquoy dung dl 19C tinh cho khOng lthf cd nbng dJ bll han dlu dt nho C] = 01002 + 0005 glm3

133

1012 01J9 n i 090

L7 07 - 095

0 095 091

__ ~00g cO t~_I_~~_----_~~_~~73lO~J~OJ)29laquor~_j~_____~~_____

l14 070

4 070

Luu IUQng gi6 di qua thiel bi IQc tit

m500 d~n 600 ----- shy

m lth lt

TrO hte eua thil1t bi ph thucentC vio s6 lop gilaquoy vA thbl gian 19c (lap blti bam trAn

iiY)lt

VOl 6-10 IIJp gi~ thl t life I 6P = 10 + 16 m H 20

Khi trb hlc cho phep 11 10 mm H20 thl thbi gian JQC 1 ph1l thu)c vao nbng d~ bli ben dlu 0) nhu sau

C1 = 0001 gm3 thl l _ r C = 0002 gm3

1 tC = 0003 gim

Khi trb htc cho phep lit 15 mm H 20

C = 0001 gim hi r C = 0002 glml Z1

C = 0003 gim 1

Bdng 4-6lt Bi~u dilm dQ loe J

-~----lt--lt lt Ndeg Ten gi)i

-_-----_----shy10 Iampp licnin

2 I 6 lampp llenin va 2 lampp glily llla

3 In kJp Ucnln va 2 lOp giHy IQa

I

4 6 Iampp centy 5 b Iampp Itcnin

-_____~----- -

Hlnh 42Q Thieurot bj IQc khung gil1y

_ 100 + 300 h

= 60 + 140 h

_ 40 + 100 hlt

thl

= 200 + 400 h

= 100 200 h

= 60 + 120 h

t- I

92middot95 I tJ4 ~ ltx I9 I

4 lt

~-

Su b can I ~

140middot ZOO

If bull no

m zoo

e) L9c bttng lOp v4t d~m va [uoi 1thi~u ldp

Hai lOl(li thi~t hi joe IOli nAy dliQc th~ bi(ln (J hinh 421 hinh 422 m3

Cc lo~i nay eO hiu htcng gio di qua tu 4000 d~n 600o-~2~h V$t d~Dl cd the III cae

meurou 6ng g6m sd dO I(m xcentn my htu httlng cua khOng khi cltn 19C rnA ghep eae khay lQC li thAnh thi~t hi JQC eO di~n deh phil hlJp (xem hlnh 423-) Cae khay hii1i IQc cO th~ tjm dhn khoong di)c bi~t khOng co Utili bay hoi tit 40degC trc j(n sau khi bay hoi hlt kh6ng deuro lili C$n cang

Cae v~t dtm cd Ihd duQc bsdi 11at h~ nwt blng nuDe tuy Htng trubng hQp au d1lng Cl theuro

134

I

Dcent lQC ~h cUe thilt bj l~i nAy IA p = 96 + 99lt

Tra hte cua thi~t hi IA AP = 8 12 mm H20

N~u C1 1 001 + 002 ~ thl t = 5 + 10 ngAy nlu CJ = 0 1 g] thl t = 10h m m

Hinh 421 ~c Mng vlt d~m Hirth 422 LQC bAng cae htoL

Trd hte eGng cd theuro tinh thea c6ng tbtc sau dAy

AP =- b(lwm mm HzD (464)

trong do

m b bull cae h~ so phll thucentc dl Ibn va d~ng vl)t d~ln tra bang 47

b ~ chieu daY lftp d~rn mm

W ~ v$n uSc gi6 tinh eho toAn di~n dch chAn gid mis

Bang 47

135

g) Thill hI kilu xooy ide (xyclonj

DAy JA l~ thiGt hi dung dllng bli hote san pbfm ~ng bOt Csectu tllo cus thitft hi lolJl nAy th4 hi~n it hlnb 424 Nguytn ly hOllt d~ng clia n6 dtl8 vilo hte quan dnh Dong kbong khl co hili hoj)c bQt dtlQC thlti vilo kydon theo dltbng titfp tuy~n xoa) Mn trong don blnh tTlL Do Itlc quAn tfoh do xoay gAy ra lam cac ~t bi bQt d$p vAo thAnh thieurot bj rai roi x-u6ng day qua lt0 au thai) ra ngoaL Kh6ng khf etA duc1C taltb blti bQt

thee 6ng tAm d~n JQc tu1 Xyclon dA duqc tiampu chultn hoa th4 Mn d bAng 48 va bang 49

Bang 48 D~ tfuh k9 thu$t cUa xyc)on

------- ~~---------~--

Bang 49 Kick tlullJc va trong IlLqng

XY~lOll -----------~-------Kfch_~~-----~---- TnA18

I 552 322 i7 RiO 600 I 100 ] 200 115 10

2 762 442 l 97 1225 1)80 100 285 165 122

3 966 566 116 1500 1200 100 350 200 254

4 1111 6$1 lW 1725 ll8O 100 405 230 310

5 1226 726 IS 1 1925 1540 IO(l 450 250 174

6 gt32 77 61 lOSO IS 275 44

7 1761441 841 2225 lSO 52 300 493

8 l 2415 ISO 580 330 643 150 7911640 365 50 685 390 199

_~__i_ -shy

h) L9C bang dilfn

Thltn bi lQC lwti nity dung de IQC bvi co kfch thdbc tu 02 den lOltm nlmg d(l bli tntt1c

136

khi loe ]A C = 00002 + 0002 gm d~ lQC ch Iii fJ = 92 + 95

NAng hi(tng t1~u t6n df lQc b1li cho lOOOOmJlh khOng khl tit 015 dfn 02 kWh Di~l) ap d$ ien hoa Itt 13000V vOi 14m pMng eln 6000V

--

oj c)

d) Htnh 423 Cdu tqo ella thitt hI l~

a) v$t d~m (118 mm I = 8 mm) b) byl bam trampn thilft hi itlc c) tiing di$n tfch Itc d Mp htBi IQc dt chao gdc

137

i) Khri mui eM kh6ng khl

Thong thttcJng d$ khit mid 0 nhiam cho khOng khf ta dung than hOllt tinh Thift bi khu mid dl1Q1c

cu ~o thAnh cae khay c6 chUa cae 6ng than hOft tinh (h~c lOp than hOft dnh) xem h)nh 425 Thai gjan ail dyng ella tbiat hi phl thu~ vAo 1thbng khi cd theuro ttt 6 thAng d~n 2 nAm M6i c9C 6ng than hOfJt dnb IQC du~ 5Om31b nhu vty Dang suit cia khay s( phl thuoc vao 86 6ng cO trong khay

Trb lfC eua m()t ()p 6ng trong khay 11 4 mmHzO

k) Thill bj trno ddi nhi~t dqng 6ng cO canh u~ H~nh 424 Ct(u ~o eua xyclonphla kh6ng khl -I-

DAy 14 thi hi trao ddi nbi~t dung yrlt fld6t nong h04C lam Jnh kbbng khI tuy

~

I

m1tc dich Btl d1tng Clu tJto eua din ~ 6ng cO cAnh r4t da ~g nhung lam vi$lt dllu tboo nguyAn Ult IA khOng kh Ii cbay b9c btm ngoAi 6ng cd canh ebn luu I bull I

a)

JT lt7

- I- U

01M nong hlt$ l(lnb thi d trong 60g

Hinlt 425 Thi~t bj khu mid Hlnh 426 th$ hl~n e4u tao ella j 60 than h tloh h) khay I(gtC

6ng co canh xoAn thea tdeurou vit vii ttn L04i nAy thUbng dung til eh~ UJo thanh dan 6ng clt5 ci1nh m~t lap (hinh 427 nhi~u IfJp (hlnh 428) Khi Jiim dan nong tm canh dAy khi lam dim l~nh duai OOC thl canh phAi thus hon de tranh blim tuyeurot nhanh lam can gid vA glam h~ 86 trao d6i nhi(lt

Nlfu c4u ~o eua 6ng e6 oonh gbm 6ng co cent 12251675 mm canh quAn quanh 6ng 14 hAng thep rcentng 10 mm) day 05 mm (canh CQO 10 mm day 05 mm) thi cd m6i met dng cO canh cO 066 m2 br mtt trao d6i nhi~t 0016 m2 di6n tfch tr6ng (kh6ng khi chity qua) Quan M gifts hiu lU(1ng $ t6c chay CUB kboog khi vA tm hIe cUe mOt l()p 6ng duc th~ hi~n d bang 410

1rtl J1C cua dan nhiu lape lA tfch s6 cUll d~n mcentt lbp Bang 410

~

V4lgt tOe w mS I 9L Luu IUQ1IS V m3Jh 60

2 3

4

5

i 6 I

I 7 I 8

IZO 0

160

05

240 I

0 I

300 I

4[

360

2 I

42 I 460 1

2fgt I 34 I I

54

Tramp loe H mm~o~ 4~

l) Dl gitim l6n tMt d(mg nang d cua ddy eGa qu( to dung ong Zoe

Nliu ili di~n ella 6ng Ice IA binh YUbng thl ly g6e rna I = lO Chi~u did ella

138

I

Dcent lQC ~h cUe thilt bj l~i nAy IA p = 96 + 99lt

Tra hte cua thi~t hi IA AP = 8 12 mm H20

N~u C1 1 001 + 002 ~ thl t = 5 + 10 ngAy nlu CJ = 0 1 g] thl t = 10h m m

Hinh 421 ~c Mng vlt d~m Hirth 422 LQC bAng cae htoL

Trd hte eGng cd theuro tinh thea c6ng tbtc sau dAy

AP =- b(lwm mm HzD (464)

trong do

m b bull cae h~ so phll thucentc dl Ibn va d~ng vl)t d~ln tra bang 47

b ~ chieu daY lftp d~rn mm

W ~ v$n uSc gi6 tinh eho toAn di~n dch chAn gid mis

Bang 47

135

g) Thill hI kilu xooy ide (xyclonj

DAy JA l~ thiGt hi dung dllng bli hote san pbfm ~ng bOt Csectu tllo cus thitft hi lolJl nAy th4 hi~n it hlnb 424 Nguytn ly hOllt d~ng clia n6 dtl8 vilo hte quan dnh Dong kbong khl co hili hoj)c bQt dtlQC thlti vilo kydon theo dltbng titfp tuy~n xoa) Mn trong don blnh tTlL Do Itlc quAn tfoh do xoay gAy ra lam cac ~t bi bQt d$p vAo thAnh thieurot bj rai roi x-u6ng day qua lt0 au thai) ra ngoaL Kh6ng khf etA duc1C taltb blti bQt

thee 6ng tAm d~n JQc tu1 Xyclon dA duqc tiampu chultn hoa th4 Mn d bAng 48 va bang 49

Bang 48 D~ tfuh k9 thu$t cUa xyc)on

------- ~~---------~--

Bang 49 Kick tlullJc va trong IlLqng

XY~lOll -----------~-------Kfch_~~-----~---- TnA18

I 552 322 i7 RiO 600 I 100 ] 200 115 10

2 762 442 l 97 1225 1)80 100 285 165 122

3 966 566 116 1500 1200 100 350 200 254

4 1111 6$1 lW 1725 ll8O 100 405 230 310

5 1226 726 IS 1 1925 1540 IO(l 450 250 174

6 gt32 77 61 lOSO IS 275 44

7 1761441 841 2225 lSO 52 300 493

8 l 2415 ISO 580 330 643 150 7911640 365 50 685 390 199

_~__i_ -shy

h) L9C bang dilfn

Thltn bi lQC lwti nity dung de IQC bvi co kfch thdbc tu 02 den lOltm nlmg d(l bli tntt1c

136

khi loe ]A C = 00002 + 0002 gm d~ lQC ch Iii fJ = 92 + 95

NAng hi(tng t1~u t6n df lQc b1li cho lOOOOmJlh khOng khl tit 015 dfn 02 kWh Di~l) ap d$ ien hoa Itt 13000V vOi 14m pMng eln 6000V

--

oj c)

d) Htnh 423 Cdu tqo ella thitt hI l~

a) v$t d~m (118 mm I = 8 mm) b) byl bam trampn thilft hi itlc c) tiing di$n tfch Itc d Mp htBi IQc dt chao gdc

137

i) Khri mui eM kh6ng khl

Thong thttcJng d$ khit mid 0 nhiam cho khOng khf ta dung than hOllt tinh Thift bi khu mid dl1Q1c

cu ~o thAnh cae khay c6 chUa cae 6ng than hOft tinh (h~c lOp than hOft dnh) xem h)nh 425 Thai gjan ail dyng ella tbiat hi phl thu~ vAo 1thbng khi cd theuro ttt 6 thAng d~n 2 nAm M6i c9C 6ng than hOfJt dnb IQC du~ 5Om31b nhu vty Dang suit cia khay s( phl thuoc vao 86 6ng cO trong khay

Trb lfC eua m()t ()p 6ng trong khay 11 4 mmHzO

k) Thill bj trno ddi nhi~t dqng 6ng cO canh u~ H~nh 424 Ct(u ~o eua xyclonphla kh6ng khl -I-

DAy 14 thi hi trao ddi nbi~t dung yrlt fld6t nong h04C lam Jnh kbbng khI tuy

~

I

m1tc dich Btl d1tng Clu tJto eua din ~ 6ng cO cAnh r4t da ~g nhung lam vi$lt dllu tboo nguyAn Ult IA khOng kh Ii cbay b9c btm ngoAi 6ng cd canh ebn luu I bull I

a)

JT lt7

- I- U

01M nong hlt$ l(lnb thi d trong 60g

Hinlt 425 Thi~t bj khu mid Hlnh 426 th$ hl~n e4u tao ella j 60 than h tloh h) khay I(gtC

6ng co canh xoAn thea tdeurou vit vii ttn L04i nAy thUbng dung til eh~ UJo thanh dan 6ng clt5 ci1nh m~t lap (hinh 427 nhi~u IfJp (hlnh 428) Khi Jiim dan nong tm canh dAy khi lam dim l~nh duai OOC thl canh phAi thus hon de tranh blim tuyeurot nhanh lam can gid vA glam h~ 86 trao d6i nhi(lt

Nlfu c4u ~o eua 6ng e6 oonh gbm 6ng co cent 12251675 mm canh quAn quanh 6ng 14 hAng thep rcentng 10 mm) day 05 mm (canh CQO 10 mm day 05 mm) thi cd m6i met dng cO canh cO 066 m2 br mtt trao d6i nhi~t 0016 m2 di6n tfch tr6ng (kh6ng khi chity qua) Quan M gifts hiu lU(1ng $ t6c chay CUB kboog khi vA tm hIe cUe mOt l()p 6ng duc th~ hi~n d bang 410

1rtl J1C cua dan nhiu lape lA tfch s6 cUll d~n mcentt lbp Bang 410

~

V4lgt tOe w mS I 9L Luu IUQ1IS V m3Jh 60

2 3

4

5

i 6 I

I 7 I 8

IZO 0

160

05

240 I

0 I

300 I

4[

360

2 I

42 I 460 1

2fgt I 34 I I

54

Tramp loe H mm~o~ 4~

l) Dl gitim l6n tMt d(mg nang d cua ddy eGa qu( to dung ong Zoe

Nliu ili di~n ella 6ng Ice IA binh YUbng thl ly g6e rna I = lO Chi~u did ella

138

g) Thill hI kilu xooy ide (xyclonj

DAy JA l~ thiGt hi dung dllng bli hote san pbfm ~ng bOt Csectu tllo cus thitft hi lolJl nAy th4 hi~n it hlnb 424 Nguytn ly hOllt d~ng clia n6 dtl8 vilo hte quan dnh Dong kbong khl co hili hoj)c bQt dtlQC thlti vilo kydon theo dltbng titfp tuy~n xoa) Mn trong don blnh tTlL Do Itlc quAn tfoh do xoay gAy ra lam cac ~t bi bQt d$p vAo thAnh thieurot bj rai roi x-u6ng day qua lt0 au thai) ra ngoaL Kh6ng khf etA duc1C taltb blti bQt

thee 6ng tAm d~n JQc tu1 Xyclon dA duqc tiampu chultn hoa th4 Mn d bAng 48 va bang 49

Bang 48 D~ tfuh k9 thu$t cUa xyc)on

------- ~~---------~--

Bang 49 Kick tlullJc va trong IlLqng

XY~lOll -----------~-------Kfch_~~-----~---- TnA18

I 552 322 i7 RiO 600 I 100 ] 200 115 10

2 762 442 l 97 1225 1)80 100 285 165 122

3 966 566 116 1500 1200 100 350 200 254

4 1111 6$1 lW 1725 ll8O 100 405 230 310

5 1226 726 IS 1 1925 1540 IO(l 450 250 174

6 gt32 77 61 lOSO IS 275 44

7 1761441 841 2225 lSO 52 300 493

8 l 2415 ISO 580 330 643 150 7911640 365 50 685 390 199

_~__i_ -shy

h) L9C bang dilfn

Thltn bi lQC lwti nity dung de IQC bvi co kfch thdbc tu 02 den lOltm nlmg d(l bli tntt1c

136

khi loe ]A C = 00002 + 0002 gm d~ lQC ch Iii fJ = 92 + 95

NAng hi(tng t1~u t6n df lQc b1li cho lOOOOmJlh khOng khl tit 015 dfn 02 kWh Di~l) ap d$ ien hoa Itt 13000V vOi 14m pMng eln 6000V

--

oj c)

d) Htnh 423 Cdu tqo ella thitt hI l~

a) v$t d~m (118 mm I = 8 mm) b) byl bam trampn thilft hi itlc c) tiing di$n tfch Itc d Mp htBi IQc dt chao gdc

137

i) Khri mui eM kh6ng khl

Thong thttcJng d$ khit mid 0 nhiam cho khOng khf ta dung than hOllt tinh Thift bi khu mid dl1Q1c

cu ~o thAnh cae khay c6 chUa cae 6ng than hOft tinh (h~c lOp than hOft dnh) xem h)nh 425 Thai gjan ail dyng ella tbiat hi phl thu~ vAo 1thbng khi cd theuro ttt 6 thAng d~n 2 nAm M6i c9C 6ng than hOfJt dnb IQC du~ 5Om31b nhu vty Dang suit cia khay s( phl thuoc vao 86 6ng cO trong khay

Trb lfC eua m()t ()p 6ng trong khay 11 4 mmHzO

k) Thill bj trno ddi nhi~t dqng 6ng cO canh u~ H~nh 424 Ct(u ~o eua xyclonphla kh6ng khl -I-

DAy 14 thi hi trao ddi nbi~t dung yrlt fld6t nong h04C lam Jnh kbbng khI tuy

~

I

m1tc dich Btl d1tng Clu tJto eua din ~ 6ng cO cAnh r4t da ~g nhung lam vi$lt dllu tboo nguyAn Ult IA khOng kh Ii cbay b9c btm ngoAi 6ng cd canh ebn luu I bull I

a)

JT lt7

- I- U

01M nong hlt$ l(lnb thi d trong 60g

Hinlt 425 Thi~t bj khu mid Hlnh 426 th$ hl~n e4u tao ella j 60 than h tloh h) khay I(gtC

6ng co canh xoAn thea tdeurou vit vii ttn L04i nAy thUbng dung til eh~ UJo thanh dan 6ng clt5 ci1nh m~t lap (hinh 427 nhi~u IfJp (hlnh 428) Khi Jiim dan nong tm canh dAy khi lam dim l~nh duai OOC thl canh phAi thus hon de tranh blim tuyeurot nhanh lam can gid vA glam h~ 86 trao d6i nhi(lt

Nlfu c4u ~o eua 6ng e6 oonh gbm 6ng co cent 12251675 mm canh quAn quanh 6ng 14 hAng thep rcentng 10 mm) day 05 mm (canh CQO 10 mm day 05 mm) thi cd m6i met dng cO canh cO 066 m2 br mtt trao d6i nhi~t 0016 m2 di6n tfch tr6ng (kh6ng khi chity qua) Quan M gifts hiu lU(1ng $ t6c chay CUB kboog khi vA tm hIe cUe mOt l()p 6ng duc th~ hi~n d bang 410

1rtl J1C cua dan nhiu lape lA tfch s6 cUll d~n mcentt lbp Bang 410

~

V4lgt tOe w mS I 9L Luu IUQ1IS V m3Jh 60

2 3

4

5

i 6 I

I 7 I 8

IZO 0

160

05

240 I

0 I

300 I

4[

360

2 I

42 I 460 1

2fgt I 34 I I

54

Tramp loe H mm~o~ 4~

l) Dl gitim l6n tMt d(mg nang d cua ddy eGa qu( to dung ong Zoe

Nliu ili di~n ella 6ng Ice IA binh YUbng thl ly g6e rna I = lO Chi~u did ella

138

khi loe ]A C = 00002 + 0002 gm d~ lQC ch Iii fJ = 92 + 95

NAng hi(tng t1~u t6n df lQc b1li cho lOOOOmJlh khOng khl tit 015 dfn 02 kWh Di~l) ap d$ ien hoa Itt 13000V vOi 14m pMng eln 6000V

--

oj c)

d) Htnh 423 Cdu tqo ella thitt hI l~

a) v$t d~m (118 mm I = 8 mm) b) byl bam trampn thilft hi itlc c) tiing di$n tfch Itc d Mp htBi IQc dt chao gdc

137

i) Khri mui eM kh6ng khl

Thong thttcJng d$ khit mid 0 nhiam cho khOng khf ta dung than hOllt tinh Thift bi khu mid dl1Q1c

cu ~o thAnh cae khay c6 chUa cae 6ng than hOft tinh (h~c lOp than hOft dnh) xem h)nh 425 Thai gjan ail dyng ella tbiat hi phl thu~ vAo 1thbng khi cd theuro ttt 6 thAng d~n 2 nAm M6i c9C 6ng than hOfJt dnb IQC du~ 5Om31b nhu vty Dang suit cia khay s( phl thuoc vao 86 6ng cO trong khay

Trb lfC eua m()t ()p 6ng trong khay 11 4 mmHzO

k) Thill bj trno ddi nhi~t dqng 6ng cO canh u~ H~nh 424 Ct(u ~o eua xyclonphla kh6ng khl -I-

DAy 14 thi hi trao ddi nbi~t dung yrlt fld6t nong h04C lam Jnh kbbng khI tuy

~

I

m1tc dich Btl d1tng Clu tJto eua din ~ 6ng cO cAnh r4t da ~g nhung lam vi$lt dllu tboo nguyAn Ult IA khOng kh Ii cbay b9c btm ngoAi 6ng cd canh ebn luu I bull I

a)

JT lt7

- I- U

01M nong hlt$ l(lnb thi d trong 60g

Hinlt 425 Thi~t bj khu mid Hlnh 426 th$ hl~n e4u tao ella j 60 than h tloh h) khay I(gtC

6ng co canh xoAn thea tdeurou vit vii ttn L04i nAy thUbng dung til eh~ UJo thanh dan 6ng clt5 ci1nh m~t lap (hinh 427 nhi~u IfJp (hlnh 428) Khi Jiim dan nong tm canh dAy khi lam dim l~nh duai OOC thl canh phAi thus hon de tranh blim tuyeurot nhanh lam can gid vA glam h~ 86 trao d6i nhi(lt

Nlfu c4u ~o eua 6ng e6 oonh gbm 6ng co cent 12251675 mm canh quAn quanh 6ng 14 hAng thep rcentng 10 mm) day 05 mm (canh CQO 10 mm day 05 mm) thi cd m6i met dng cO canh cO 066 m2 br mtt trao d6i nhi~t 0016 m2 di6n tfch tr6ng (kh6ng khi chity qua) Quan M gifts hiu lU(1ng $ t6c chay CUB kboog khi vA tm hIe cUe mOt l()p 6ng duc th~ hi~n d bang 410

1rtl J1C cua dan nhiu lape lA tfch s6 cUll d~n mcentt lbp Bang 410

~

V4lgt tOe w mS I 9L Luu IUQ1IS V m3Jh 60

2 3

4

5

i 6 I

I 7 I 8

IZO 0

160

05

240 I

0 I

300 I

4[

360

2 I

42 I 460 1

2fgt I 34 I I

54

Tramp loe H mm~o~ 4~

l) Dl gitim l6n tMt d(mg nang d cua ddy eGa qu( to dung ong Zoe

Nliu ili di~n ella 6ng Ice IA binh YUbng thl ly g6e rna I = lO Chi~u did ella

138

i) Khri mui eM kh6ng khl

Thong thttcJng d$ khit mid 0 nhiam cho khOng khf ta dung than hOllt tinh Thift bi khu mid dl1Q1c

cu ~o thAnh cae khay c6 chUa cae 6ng than hOft tinh (h~c lOp than hOft dnh) xem h)nh 425 Thai gjan ail dyng ella tbiat hi phl thu~ vAo 1thbng khi cd theuro ttt 6 thAng d~n 2 nAm M6i c9C 6ng than hOfJt dnb IQC du~ 5Om31b nhu vty Dang suit cia khay s( phl thuoc vao 86 6ng cO trong khay

Trb lfC eua m()t ()p 6ng trong khay 11 4 mmHzO

k) Thill bj trno ddi nhi~t dqng 6ng cO canh u~ H~nh 424 Ct(u ~o eua xyclonphla kh6ng khl -I-

DAy 14 thi hi trao ddi nbi~t dung yrlt fld6t nong h04C lam Jnh kbbng khI tuy

~

I

m1tc dich Btl d1tng Clu tJto eua din ~ 6ng cO cAnh r4t da ~g nhung lam vi$lt dllu tboo nguyAn Ult IA khOng kh Ii cbay b9c btm ngoAi 6ng cd canh ebn luu I bull I

a)

JT lt7

- I- U

01M nong hlt$ l(lnb thi d trong 60g

Hinlt 425 Thi~t bj khu mid Hlnh 426 th$ hl~n e4u tao ella j 60 than h tloh h) khay I(gtC

6ng co canh xoAn thea tdeurou vit vii ttn L04i nAy thUbng dung til eh~ UJo thanh dan 6ng clt5 ci1nh m~t lap (hinh 427 nhi~u IfJp (hlnh 428) Khi Jiim dan nong tm canh dAy khi lam dim l~nh duai OOC thl canh phAi thus hon de tranh blim tuyeurot nhanh lam can gid vA glam h~ 86 trao d6i nhi(lt

Nlfu c4u ~o eua 6ng e6 oonh gbm 6ng co cent 12251675 mm canh quAn quanh 6ng 14 hAng thep rcentng 10 mm) day 05 mm (canh CQO 10 mm day 05 mm) thi cd m6i met dng cO canh cO 066 m2 br mtt trao d6i nhi~t 0016 m2 di6n tfch tr6ng (kh6ng khi chity qua) Quan M gifts hiu lU(1ng $ t6c chay CUB kboog khi vA tm hIe cUe mOt l()p 6ng duc th~ hi~n d bang 410

1rtl J1C cua dan nhiu lape lA tfch s6 cUll d~n mcentt lbp Bang 410

~

V4lgt tOe w mS I 9L Luu IUQ1IS V m3Jh 60

2 3

4

5

i 6 I

I 7 I 8

IZO 0

160

05

240 I

0 I

300 I

4[

360

2 I

42 I 460 1

2fgt I 34 I I

54

Tramp loe H mm~o~ 4~

l) Dl gitim l6n tMt d(mg nang d cua ddy eGa qu( to dung ong Zoe

Nliu ili di~n ella 6ng Ice IA binh YUbng thl ly g6e rna I = lO Chi~u did ella

138

d01lln 6ng loe duqc dnh 880 cho di~n deb mil)ng Ioe ibn gAp b6n litn din deh mi~ng dlty cua q4lt (xem hlnh 429)

Sau khi (fa tfnh dU(1C luu htcJng t60 that ap 11JC cua h~ th6ng qut ta tra dUl1e qUt c~n thi6t qua catalo CUll cac hitng chI bo hOle ta c6 thi tMlt kf va chI ~ moi nhung phii set hitu quA kinh t6 Vi~ tfnh cbng 8n4t quatt c6ng 811l1t dong co keo qut hoc dnh thilt kt qut duqc d) 4p li mlc 41 47 48

Hlnh 426 Ong cd dnh dlDg tit v6 t~n

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Hinh 427 DAn (jng m~ lop Hlnh 428 Dan 6ng Qhi~u Icp

m) 1lC llle ella thitt bi di~u hba kMng k1 trnug t4m

1Igt~g xli Ii kMng khi) 1

Tro lfc cda bu~ng ~l1 Ij khong khi tily thuOc vim ~u tllO bn trong cua no va vn t6c cua khOng khf di qua egu LIIO cua bubog xu Iy khOng khI gam co 11jIC blli M theing ong vti VQj phun mua ll(lnh b~ ph~n can cac h~t nU6c bt cutSn thea khong kbf d~t sau huang phun b phtn d6t ndng (kaloTiphe) M hlc cda bQ ph$n IQc VA kaloriphe de n6i a t~n

TeO ~ltC cua b~ pMtI phun mUa hmh phl tbu~ vao s6 dln phun di)t chin t~n duong di cua khOng khi va cae chum bt nU(Jc phun ra tit cae vOi phqn 86 dan phun va Hlnh 429 Dung 6ng s6 voi phun vlt khoang each eull chung vOl nhau Lily thuc I dll giAm t6n th~t vao oong suat tmo 46 nhi(t giua nuOc va khOng khL H~ d)ng nAng s6 tro h1C clJc bO ~ua m6i dan lA = 01 vA ella nh~u dan 1 quf)i2 ~ 6ng loe I

139

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trong do

11- ~ s6 dan H$ 86 tr(t hie etia mtta 4mb (cae chum h~t QUae) IA 1

ltv - 10

H s6 ttd hJe etla thi~t hi e6n cae blt nubo ph thu~ veo ampu to cua no (t18 bing 4-10) C4u tl(lO cua b6 phn nay lil hang rae tit eRe tam gSp kblk

T6ng trd hiC cua bu~ng xa 11 kh6ng khi (chua k ~ phn lQC bcent kalcripbe) cO

thf Illy nb $8U

w tJ - H - (30 + 70) - p mm HO (466)

2

trong d-ti m W - v4n tamp khOng khf - bull p - kh6i ht9ng nang cUa khOng khI kgm3

T6ng tro 110 eUa bubng xU Ij du1c tfnb thea c6ng tht1c MU

(467)

hay W2

H - laquoL + lt + ltv + lt + K) -- P mm HO (468)2

trong do

Hz ~ tl1ng trd lfc eua bubng xu Ij mm H20

HL - tra hie CUll bO ph~n 19Cj mm H20

H K tra hje eua kalorlphe nun H20

H - trtl lfc ella cym phun mua va clin cae rut mtoc rom HzO

~L 11 v ~ ~K - ht) s6 tlii hte clC ~ clia Clie thi~t b IQC dan phun Quia hlnh (cae cbum h~t nl1Csc phun ra ttl cae voU bQ phi)n can clic hJlt nuOc kalorlpbe tra bAllg tuang ttng

Tdng tro hlccuah th6ng qUllt dutJC tlnh theo cOng thuc 456)

COng suitt cua qut 1l1p trong M th6ng dUQc dnh thea Ccentng thtlc (45) hOlC (47)

COng ~t dl)ng cd dtt~ tfnh tbeo cflng th1tc (426)

n) 7hJ -tile ctia buang 66y

Trl) 11c cia buhng slaquoy tily thucentC csectu ~o eua m6i bubng say vA each b6 trf v$t s4y trong do Bu~ng y co eiIu ~ nit da d~ng n~n b dAy kh6ng d~ cqp duqc h~t TUy titng tru~ng h~p cl thl rna chrgtn theo n~i 8Uy chQn thea thtc nghi~m Sau khi tfnh duqc )uu IU(fng tae nUn MY t6ng tdn thl1t tro htc cua h~ tMng idly ta Huh cOng sut1t qu~t v eOng aut dOng cd hldug tl nhu tren

140

(465)

trong do

11- ~ s6 dan H$ 86 tr(t hie etia mtta 4mb (cae chum h~t QUae) IA 1

ltv - 10

H s6 ttd hJe etla thi~t hi e6n cae blt nubo ph thu~ veo ampu to cua no (t18 bing 4-10) C4u tl(lO cua b6 phn nay lil hang rae tit eRe tam gSp kblk

T6ng trd hiC cua bu~ng xa 11 kh6ng khi (chua k ~ phn lQC bcent kalcripbe) cO

thf Illy nb $8U

w tJ - H - (30 + 70) - p mm HO (466)

2

trong d-ti m W - v4n tamp khOng khf - bull p - kh6i ht9ng nang cUa khOng khI kgm3

T6ng tro 110 eUa bubng xU Ij du1c tfnb thea c6ng tht1c MU

(467)

hay W2

H - laquoL + lt + ltv + lt + K) -- P mm HO (468)2

trong do

Hz ~ tl1ng trd lfc eua bubng xu Ij mm H20

HL - tra hie CUll bO ph~n 19Cj mm H20

H K tra hje eua kalorlphe nun H20

H - trtl lfc ella cym phun mua va clin cae rut mtoc rom HzO

~L 11 v ~ ~K - ht) s6 tlii hte clC ~ clia Clie thi~t b IQC dan phun Quia hlnh (cae cbum h~t nl1Csc phun ra ttl cae voU bQ phi)n can clic hJlt nuOc kalorlpbe tra bAllg tuang ttng

Tdng tro hlccuah th6ng qUllt dutJC tlnh theo cOng thuc 456)

COng suitt cua qut 1l1p trong M th6ng dUQc dnh thea Ccentng thtlc (45) hOlC (47)

COng ~t dl)ng cd dtt~ tfnh tbeo cflng th1tc (426)

n) 7hJ -tile ctia buang 66y

Trl) 11c cia buhng slaquoy tily thucentC csectu ~o eua m6i bubng say vA each b6 trf v$t s4y trong do Bu~ng y co eiIu ~ nit da d~ng n~n b dAy kh6ng d~ cqp duqc h~t TUy titng tru~ng h~p cl thl rna chrgtn theo n~i 8Uy chQn thea thtc nghi~m Sau khi tfnh duqc )uu IU(fng tae nUn MY t6ng tdn thl1t tro htc cua h~ tMng idly ta Huh cOng sut1t qu~t v eOng aut dOng cd hldug tl nhu tren

140