Waste Heat Generator

7/25/2019 Waste Heat Generator

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Copyright 2009 Calnetix Power Solutions, Inc. Confidential

Waste eat !enerator "W!#$%lectric !enerator &sing Waste eat$

Sales Technical Training Part 1


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Technical Training in 2 Parts

Part 1 (Today) Covers the Following:

' How a Waste Heat Generator Works

' Where wold a Waste Heat Generator !akes !oney

' How a Waste Heat Generator Pro"ect is #valated

' How !ch !oney a Waste Heat Generator Pro"ect !akes

2

$Closing the %eal& ' $Service Training& are lso vailale

Part * (Ftre) Covers %etailed Calclations


3/70


Agenda

+asic Ter,s ' #lectricity Prodction

(rganic )an*ine Cycle

+pplications

Syste Coponents

Si-ing &p a o/

Proect %xaple 1 Pay/ac*

Core echnology +d3antages

4


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Basic Terms

'

+ritish Ther,al -nit (+T-)5he aount of heat that will raise 6 pound ofwater 6 degree 7ahrenheit. (ne 8& is eui3alent to 2:2 calories, 60::oules, and 0.294 Watt$hours. here are 4;62 8&


5/70


Basic Terms

' !P5he !P or+pere is a unit indicating the flow rate of electrons. he

+>P is a easure of current "?.2;2 x 606@

electrons per second#' Watt$ + Wattis a unit of electrical power that euals one oule per second.

Wor* is done at a rate of one Watt when one apere flows through a potentialdifference of one 3olt.

' kW$ + kiloWattis one thousand watts.

' kWh$ he kiloWatt0horis a unit of energy. %nergy deli3ered /y electricutilities is usually expressed and charged for in *iloWatt$hours. %nergy in*iloWatt$hours is the product of power in *iloWatts and tie in hoursA it is not*iloWatts per hour.

' 0+olt0,.ere is the aount of power in an +C circuit eual to a currentflow of one +pere at a potential difference of one 3olt. While the Bolt$+pere

and the watt are diensionally eui3alent one ay find products rated in /othB+s and Watts with different nu/ers. he B+ rating is the apparent powerthat a de3ice is capa/le of producing, while the Watt rating is the real power"or true power# a de3ice is capa/le of producing.

' k 0+ kiloolt0,.ere is one thousand 3olt$aperes of electricity.

:


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Basic Terms

' Power Factor 0 he ratio of real power "*W# actually used in an electricalcircuit to apparent power "*B+#, the power /eing drawn fro the power

source.

C= Watts D Bolts E +ps D B+

+C= Watts D Bolts E +ps E Power 7actor F B+ "unless P7 D 6#

?

his is one cycle

Current x Boltage= 8oth Current

and Boltage are at Pea*

Current

Power factor 6

G 3olts

$ 3olts

his is one cycle

Current and Boltage out of Sync 5 Power

is less than Pea* Boltage x Pea* Current

Current

Power factor H 0.?

G 3olts

$ 3olts


7/70Copyright 2009 Calnetix Power Solutions, Inc. Confidential

Electricity Production

o Water hrough a ur/ine "ydro#

' Wor*ing 7luid is Water

Stea hrough a ur/ine

' )an*ine Cycle 5 8efore WaterPasses through a ur/ine it is/oiled to Stea

' Wor*ing 7luid is Water "Steais the Bapor Phase of Water#



Rankine Cycle

@

Water

Stea,

+234#5

(aka #va.orator)

C26%#6S#5



Agenda

8asic ers 1 %lectricity Production

2rganic 5ankine Cycle

+pplications

Syste Coponents

Si-ing &p a o/



9



Organic Rankine Cycle (ORC)

' 7or any waste heat applications, we need a fluid that /oils at a lower

teperature than water

' istorically, such fluids ha3e /een hydrocarons$ hence the nae 2rganic.

' >odern Wor*ing 7luids include= Propane J Pentane J oluene J 7C$)2;:fa

' hese Wor*ing 7luids allow use of Kower$eperature eat Sources /ecausethe liuid$3apor phase change, or /oiling point, occurs at a lower teperaturethan the water$stea phase change

60



Waste Heat ources

Waste eat is heat produced /y gas tur/ines, piston engines, achines,

electrical euipent and industrial processes

Waste eat fro %ngines

' (peration of an %ngine results in exhaust that is uite hot. (ur unit capturesthis heat "can /e any stac* gas# and con3erts it to usa/le electricity.

eat fro 7uel ade fro Waste

' 8ioass refers to green and dry plant aterial that can /e used as fuel

' 8iogas is a ixture of >ethane and C(2generated /y the anaero/ic digestion

or ferentation of /iodegrada/le aterials such as /ioass, anure orsewage, unicipal waste, green waste and energy crops.

Lot Waste eat

' + closed loop syste where the heat reo3ed for the W! ust /e added/ac*.

66



Ho! it Works

62

3ntegratedPower!odle

#va.orativeCondenser

#va.orator

Heat Sorce789F (1;C)*/< !+T-=H

Generate1*9 kW 5*>9?a

P,.


13/70Copyright 2009 Calnetix Power Solutions, Inc. Confidential64


E"a#orati"e

Condenser

5eceiver

Economi$er

#va.orator

Kiuid

@:7 "29C#240psig

"6?/ar#

eat Source4:7 "690C#

2.@ >8&J

!enerate

62: *W

Kiuid

@:7 "29C#

2?psig

"6.@/ar#

)2;:fa

Ho! it Works % Pum# &ncreasesPressure

P,.

he wor*ing fluid is in the recei3er as a liuid at the condensing pressure and teperature. Itenters the pup where the wor*ing fluid


14/70Copyright 2009 Calnetix Power Solutions, Inc. Confidential6;


5eceiver

Economi$er

#va.orator


2.@ >8&J

Kiuid

66@7 ";@C#220psig

"6:/ar#

)2;:fa

Ho! it Works % 'iuid Preheat

P,.

he wor*ing fluid passes through a heat exchanger "%conoi-er# to ta*e heat out of the gaslea3ing the Integrated Power >odule. his ipro3es syste efficiency. he wor*ing fluid is now

a warer, high pressure liuid.


!enerate

62: *W

Kiuid

@:7 "29C#240psig

"6?/ar#

Kiuid

@:7 "29C#

2?psig

"6.@/ar#


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Copyright 2009 Calnetix Power Solutions, Inc. Confidential6:


5eceiver

#cono,i@er

#va.orator

Kiuid

66@7 ";@C#220psig

"6:/ar#

Bapor

2;07 "66:C#

220psig

"6:/ar#


2.@ >8&J

)2;:fa

Ho! it Works E"a#oration

P,.

he wor*ing fluid enters the %3aporator, where the wor*ing fluid is exposed to waste heat whiche3aporates the fluid to a high pressure 3apor.


!enerate

62: *W

Kiuid

66@7 ";@C#220psig

"6:/ar#

Kiuid

@:7 "29C#240psig

"6?/ar#

Kiuid

@:7 "29C#

2?psig

"6.@/ar#


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Copyright 2009 Calnetix Power Solutions, Inc. Confidential6?


5eceiver

#cono,i@er

#va.orator


2.@ >8&J

Bapor

6;:7 "?4C#

2?psig

"6.@/ar#

)2;:fa

Ho! it Works % Electricity Production

P,.

he wor*ing fluid "now a 3apor# enters the tur/ine of the IP>. he wor*ing fluid


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Copyright 2009 Calnetix Power Solutions, Inc. Confidential6


5eceiver

#cono,i@er

#va.orator


2.@ >8&J

R245fa

Bapor

@:7 "29C#

2?psig

"6.@/ar#

Ho! it Works Economi$er

P,.

he wor*ing fluid still has an enorous aount of heat, soe of which is transferred to thepuped liuid in the econoi-er. his helps in two ways= 6# this heat would ha3e otherwise

/een extracted in the condenser andA 2# there is less heat reuired at the e3aporator due to the

liuid /eing pre$wared.


Generate1*9 kW

Bapor

6;:7 "?4C#

2?psig

"6.@/ar#

Kiuid

66@7 ";@C#220psig

"6:/ar#

Bapor

2;07 "66:C#

220psig

"6:/ar#

Kiuid

66@7 ";@C#220psig

"6:/ar#

Kiuid

@:7 "29C#240psig

"6?/ar#

Kiuid

@:7 "29C#

2?psig

"6.@/ar#


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Copyright 2009 Calnetix Power Solutions, Inc. Confidential6@


5eceiver

#cono,i@er

#va.orator


2.@ >8&J

+/ient +ir:7 "2;C#

Wet 8ul/

)2;:faBapor

@:7 "29C#

2?psig

"6.@/ar#

Ho! it Works Condensation

P,.

he wor*ing fluid "still a 3apor# then flows to the condenser where heat is extracted and thewor*ing fluid condenses to a liuid.


Generate1*9 kW

Bapor

@:7 "29C#

2?psig

"6.@/ar#

Bapor

6;:7 "?4C#

2?psig

"6.@/ar#

Kiuid

66@7 ";@C#220psig

"6:/ar#

Bapor

2;07 "66:C#

220psig

"6:/ar#

Kiuid

66@7 ";@C#220psig

"6:/ar#

Kiuid

@:7 "29C#240psig

"6?/ar#

Kiuid

@:7 "29C#

2?psig

"6.@/ar#


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Copyright 2009 Calnetix Power Solutions, Inc. Confidential69


5eceiver

#cono,i@er

#va.orator

)2;:fa

Ho! it Works % Ready to Re#eat

P,.

he low pressure, liuid wor*ing fluid drains /ac* to the recei3er and is ready to /e puped tohigh pressure and flow towards the integrated power odule.


Generate1*9 kW


2.@ >8&J

+/ient +ir:7 "2;C#

Wet 8ul/

Bapor

@:7 "29C#

2?psig

"6.@/ar#

Bapor

@:7 "29C#

2?psig

"6.@/ar#

Bapor

6;:7 "?4C#

2?psig

"6.@/ar#

Kiuid

66@7 ";@C#220psig

"6:/ar#

Bapor

2;07 "66:C#

220psig

"6:/ar#

Kiuid

66@7 ";@C#220psig

"6:/ar#

Kiuid

@:7 "29C#240psig

"6?/ar#

Kiuid

@:7 "29C#

2?psig

"6.@/ar#


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Agenda



..lications

Syste Coponents

Si-ing &p a o/



20


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A##lications

Stationary %ngines 5 Pistons 1 ur/ines

' Waste eat fro ac*et Water

' Waste eat fro %xhaust

Industrial Stac* !as

' )efineries

' Incinerators

' Selters

26


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A##lications

8io !as

'

Kandfill !as

' igester !as

' Wood Chip !asification

Solar heral

!eoheral

' !eotheral Water

' !eotheral Stea

22


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Agenda



+pplications

Syste, Co,.onents

Si-ing &p a o/



24


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A Com#lete ystem

' Waste eat !enerator

' %3aporator

' Condenser

2;

W! %3aporator

Condenser


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Copyright 2009 Calnetix Power Solutions, Inc. Confidential2:

E"a#orati"e

Condenser

Recei"er

Economi$er

E"a#orato

r

Ho! it Works % Ready to Re#eat

Pum#

&ntegratedPo!er*odule


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The Calneti+ Waste Heat ,enerator

Wor*ing 7luid 7C$)2;:fa

Integrated Power >odule "IP># 5 Contains ur/ine %xpander and !enerator

' eretically Sealed >odule

M %liinate seal systes

M Integrated expander wheel

M Lo possi/ility of lea*s /etween rotating parts

' >agnetic 8earings

' Single Stage ur/ine= 2?,:00 rp 5 Lo Bi/ration

' eat reuireent 2.@: >>8& "@4:*W#

' >iniu ep 2:0N7 "622NC#

' igh$speed 2 pole rare earth agnet generator 62: *We gross

Power Conditioning' Power %lectronics prograa/le at factory to custoer reuireents. (utput

4@0$;@0B, 4 phase, 4 wire "no neutral#, :0J?0 -

2?


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2

112long46wide

79.5 tall

Weight= 2;:0*g ":;00 l/s#


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2@

)ecei3er

Pup

7ield

Connections

Integrated

Power

>odule

Power

%lectronics

Prograa/le

Kogic Controller

"PKC# 1 >agnetic8earing Controller

">8C#

B7 for Pup

Separator Inlet Control

Bal3e

8ypass

Bal3e%conoi-er

Separator

rain Bal3e

Sla

Bal3e


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29

War Kiuid to%3aporator

Cool Kiuid fro

Condenser

ot Bapor fro%3aporator

War Bapor to

Condenser


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Why 2-./0 *inimum EnteringTem#erature1

igh Speed %xpander

' Intolerant of roplets

' Superheated Bapor )euired

' Pressure ifference is the ri3ing 7orce 5 @=6 is /est

' %xaple 5

M @0N7 Condensing 5 )2;:fa is at 2.@psia lea3ing the tur/ineM @ O 2.@psia D 222.;psia reuired fro the %3aporator

M +t 222.;psia )2;:fa e3aporates at 22@N7

M + 2:0N7 %3aporator heat source deli3ers 22@N7 Wor*ing 7luid to the%xpander

' Will /e a/le to !o Kower eperature in the futureM Lew >olecule

M Staged ur/ine

40


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E"a#orator Congurations

Waste eat %3aporator

' irect 5 eat transfers directly fro the waste heat source to the wor*ing fluid

46

E+haust ,as HeatE+changer

' Indirect 5 + theral transfer ediu is used /etween the heat source and thewor*ing fluid "e.g. theral oil, hot water, stea#

E+haust ,as HeatE+changer

Bra$ed Plate HeatE+changer

G


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Condensing O#tions

' Cooling ower

' %3aporati3e Condenser

' Kiuid Chiller

' !round Water

' Pond or Ka*e

' +ir Cooled Condenser "ry Cooler#

42

Condenser

' irect 5 he wor*ing fluid passes through a heat exchanger that reects heat

directly to the en3ironent.' Indirect 5 + ediu such as water is passed through a heat exchanger and

ta*es the reected heat out of the wor*ing fluid. he ediu then transfersthe heat soewhere else.


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&nstallation Recommendations

' %3aporator 1 Condenser ust /e within :0 ft. of the W!

' Condenser ust /e ele3ated

' echnician reuired to e3acuate the syste and charge it with )2;:fa

' Cooling water reuired for the Power %lectronics

' Copressed +ir reuired for the Sla Bal3e

' Internal Cleanliness Bery Iportant

' 8iogas 5 Sulfur J Siloxane

' %thernet Connection is )euired

44

Possi/le Configurations' + coplete syste consists of=

M Waste eat !enerator

M %3aporator

M Condenser


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&ntegrated Po!er *odule

4;

>otor StatorP> )otor>agnetic

8earing>agnetic8earing

Integrated tur/ine

on coon shaft

!enerator

erinal


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High #eed &ntegrated Po!er *odule

*;k A 1*;k5P!

lternator

3nverter

5ecti?ier

Conventional Generator High0s.eed Generator

' Speed of the prie o3er deterines thefreuency of the electrical output

6:00 )P> D :0 - output.

6@00 )P> D ?0 - output.

' Paralleling with the grid is done /y using costly

synchroni-ing switch gear.

Pri,e !over

7


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Po!er Electronics % AC34C3AC

4?

Ca#acitoCa#acito

rr

BankBank

WasteWaste

HeatHeat

,enerato,eneratorr

,rid,rid

&,BT&,BT

PhasePhase

AA

&,BT&,BT

PhasePhaseBB

&,BT&,BT

PhasePhase

CC

&,BT&,BT

PhasePhase

CC

&,BT&,BT

PhasePhaseBB

&,BT&,BT

PhasePhase

AA

Power %lectronics

56.."756.."7

58-.H$58-.H$89."7 6.H$89."7 6.H$

CC wJ )ipple

)ectifier In3erter


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Po!er Electronics

4

' +lways >aintains a Pure Sine (utput Wa3e

' Lo Boltage or 7reuency Sags or Spi*es

' Lo Inducti3e Inrush

' Lo fault current contri/ution

'

7ewer synchroni-ation issues 5 >atches Source' %asier to Interconnect "&K 6;6#

' igh Con3ersion %fficiency 5 !ross 3s. Let

' !rid ust /e connected for operation


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Agenda



+pplications

Syste Coponents

Si@ing -. a Eo



4@

i i : ;


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i$ing :# a ;oultiply eat +3aila/le /y Cycle %ffecti3eness

Condensing Source

' %ntering and Kea3ing eperatures

' Calculate 7low )ate )euired


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Agenda

+asic Ter,s ' #lectricity Prodction


+pplications

Syste Coponents

Si-ing &p a o/

Pro"ect #a,.le ' Payack


;0


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Ho! the Customer a"es *oney

' &nit increases (3erall %fficiency of Systes

' &nit con3erts Wasted %nergy into %lectric Power

' &nit consues Q%)( additional fuel

' &nit creates Q%)( additional eissions

' &nit offers strong econoic ustification /ecause the W! uses low gradeheat that is usually wasted

' +s a 8onus, additional econoic returns ay /e reali-ed fro=

M )educed eand Charges

M )enewa/le energy incenti3es

M Car/on credits

;6

l =


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E+am#le Pro=ect

;2

8ioass 8oiler

nnal 5n Hors ;;

6et #lectrical 2t.t 1;8kWe

nnal Prodction ;; 1;8


43/70


Agenda



+pplications

Syste Coponents

Si-ing &p a o/


Core Technology dvantages

;4


44/70


Core Technology Ad"antage

Integrated Power >odule "IP>#

' eretically Sealed >odule

M %liinates seal systes

M Integrated expander wheel

M Lo possi/ility of lea*s /etween rotating parts

' igh Speed !enerator

M )are %arth Peranent >agnet

M 62: *We gross

M Baria/le Speed

M (3er 9@R !enerator %fficiency

M Lo !ear 8ox or associated Ku/rication Syste

;;

3ncreases the 2verall #??iciencyof the syste /y offering a >ore %fficient!enerator echnology o3er a Karge (perating )ange and /y %liinating

!ear/ox Kosses "including peripherals such as oil pups# while Siplifying

and 3ncreasing the 5eliailityof the syste.


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Integrated Power >odule "IP>#

' >agnetic 8earings

M Lon contact operation

M Kow power consuption "3s /all or fluid fil#

M Lo lu/rication, lu/rication syste, or seals

M Kow aintenance for life of unit

M Constantly onitors rotor i/alance

;:

3ncreases the 2verall #??iciencyof the syste /y offering less than 6J60ththe losses of con3entional /earing while 3ncreasing the 5eliailityand

5edcing the 4i?e Cycle Costof the product.


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' Power %lectronics

M %fficient power con3ersion

M Baria/le freuency 1 3oltage

M !enerate to !rid ";00$;@03, :0J?0-#

M 4 phase

;?

3ncreases the 2verall #??iciencyof the syste /y allowing for Baria/leSpeed and Power (peration of a igh Speed !enerator while Tracking

Peak Cycle #??iciency 2.erating Points/ased on heat input.


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Core Technology Ad"antages

;

High Speed GeneratorIncreased !cienc"# Relia$ilit"# no

gear $o%

&agnetic 'earingsIncreased !cienc"# Relia$ilit"#Red(ced losses

)ower lectronics !cient *aria$le speed operation

+o l($rication or l($rications"ste,

Increased Relia$ilit"# Red(ced parasitic

losses# +o conta,ination of process-(id

+o co(pling Increased relia$ilit"# fewer co,ponents

aria$le speed operation/pti,i0ed c"cle e!cienc" operatingpoint

Her,eticall" sealedHigher relia$ilit"# fewer wearco,ponents

Single ,o*ing part Increased relia$ilit"

&od(lar 1esignSi,ple Integration into s"ste, li3estandard piping


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;@

3P! Technology is Scalale to ny Si@e

Calnetix has designed, tested, and deli3ered a 6>W pac*aged solution on

>agnetic 8earings for a copressor application.


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Copyright 2009 Calnetix Power Solutions, Inc. Confidential;9

Waste eat !enerator

han* you

kW k>A >AR


50/70


kW7 k>A7 >AR

' )eal power "P# $ unit= watt "W#

' )eacti3e power "# $ unit= 3olt$aperes reacti3e "3ar#

' Coplex power "S# $ unit= 3olt$apere "B+#

' +pparent Power "TST# , that is,the a/solute 3alue of coplexpower S $ unit= 3olt$apere "B+#

' Power 7actor D cosU

:0

&n"erter Out#ut


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&n"erter Out#ut

' Pulse Width >odulation

:6


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Waste eat !enerator "W!#$%lectric !enerator &sing Waste eat$

dvanced Sales Training

Why Are We Here1


53/70


Why Are We Here1

:4

Part * Covers %etailed Calclations

' %etailed Calclations ?or Janti?ying the Waste Heat Sorce

' %etailed Calclation ?or #lectrical Prodction ?ro, a Waste Heat Sorce

' %etailed Calclations ?or Si@ing the Condensing Sorce

' %etailed #lectrical #cono,ic Calclations

i$ing :# a ;o


54/70


i$ing :# a ;oonths 8ills

' S*etch !eoetry 5 &nit Placeent 3. Connection Point

' Calculate Pay/ac*

:;

i$ing :# a ;o


55/70


i$ing :# a ;oass 7low of the Waste eat >ediu "l/Jhr#m

o 6stStep 5 Calculate the >ass 7low )ate "gp to l/Jhr#

6# &sing Con3ert, 69: gp D 6:?; foot4Jhr

2# l/Jhr D foot4Jhr O +3erage ensity "l/Jfoot

4#

4# 7ro a/le 6= ensity of water at 2?0N7 D :@.; l/Jfoot4

;# 7ro a/le 6= ensity of water at 240N7 D :9.4;2 l/Jfoot4

:# ":@.; G :9.4;2# V 2 D :@.9 l/Jfoot4

?# 6:?; foot4Jhr O :@.9 l/Jfoot4 D *B1*; l,=hr

i$ing :# a ;o< % E+am#le ?


57/70


i$ing :# a ;o< E+am#le ?

o eat Source 5 Process Water

' %ntering and Kea3ing eperatures= *;KF = *7;KF

'

7low )ate= 19 g.,' Calculate eat +3aila/le 5 note pressuri-ed at this teperature

:

TpcmQ =

o Where=

o 2ndStep 5 Calculate the +3erage Specific eat

6# 7ro a/le 6= Specific eat of water at 2?0N7 D 6.069 8&Jl/$N7

2# 7ro a/le 6= Specific eat of water at 240N7 D 6.066 8&Jl/$N7

4# "6.069 G 6.066# V 2 D 1/;19 +T-=l,0KFo 4rdStep 5 Calculate the elta " #

6#

2# D 2?0N7 $ 240N7 D 7;KF

T

pc

o D the +3erage Specific eat of the Waste eat >ediu "8&Jl/$N7#

o D the expected eperature loss of the Waste eat >ediu "N7#

T

T

LEAVINGENTERING TTT =



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o eat Source 5 Process Water

' %ntering and Kea3ing eperatures= *;KF = *7;KF

'

7low )ate= 19 g.,' Calculate eat +3aila/le 5 note pressuri-ed at this teperature

:@

TpcmQ =

o ;thStep 5 Calculate the eat +3aila/le

D 92,620 l/Jhr O 6.06: 8&Jl/$N7 O 40N7 D*B +T-=hr

o :thStep 5 Con3ert 8&Jhr to *W

6# 6 *Wh D 4;62 8&2# 2,@0:,0:;8&Jhr V 4;62 8&J*Wh D


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i$ing :# a ;oultiply eat +3aila/le /y Cycle %ffecti3eness

:9



60/70



?0

o 6stStep 5 Koo* up the Cycle %fficiency on Chart 6

o "0N7 Condensing Water $ 60N )ise#

o 2ndStep 5 Calculate the *We Potential for 0N7 Condensing Water $ 60N )ise

@22 *W O 6:R D 1*7 kWe gross

240N7

6:R

Chart 1

i$ing :# a ;o< % E+am#le 2


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i$ing :# a ;o< E+am#le 2

o eat Source 5 %xhaust Strea

' %ntering and Kea3ing eperatures= 89;KF = 7;;KF

'

7low )ate= 9B77; SCF!' Calculate eat +3aila/le

?6

TpcmQ =

o Where=o D the >ass 7low of the Waste eat >ediu "l/Jhr#m

o 6stStep 5 Calculate the >ass 7low "Standard C7> !i3en#

6# >ass 7low in l/Jhr D SC7> O ?0 inJhr O %xhaust ensity

2# D :440 SC7> O ?0 inJhr O 0.04 l/Jft4

4# D*7B7>9 l,=hr

Lote= When the flow rate is gi3en in +C7> this ust /e con3erted to SC7>

6# !i3en the sae conditions with 62,;02 +C7>2# Calculate the ratio of the actual tep. to standard tep. "?0N7# in N)

4# ":0G;?0# V "?0 G ;?0# D 6,260 V :20 D 2.42?9

;# 62,;02 +C7> V 2.42?9 D :,440 SC7>

:# Proceed as +/o3e



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?2

TpcmQ =

o Where=

o 2ndStep 5 Calculate the +3erage Specific eat "at #

6# 7ro Chart 2= Specific eat of %xhaust at :0N7 D 0.2: 8&Jl/$N7

2# 7ro Chart 2= Specific eat of %xhaust at 400N7 D 0.2?0 8&Jl/$N7

4# "0.2: G 0.2?0# V 2 D ;/*89 +T-=l,0KFo 4rdStep 5 Calculate the elta " #

6#

2# D :0N7 $ 400N7 D >9;KF

T

pc

o D the +3erage Specific eat of the Waste eat >ediu "8&Jl/$N7#

o D the expected eperature loss of the Waste eat >ediu "N7#

T

T

LEAVINGENTERING TTT =

o eat Source 5 %xhaust Strea


'

7low )ate= 9B77; SCF!' Calculate eat +3aila/le

2=



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?4

Chart *



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g # ; #

?;

TpcmQ =

o ;thStep 5 Calculate the eat +3aila/le

D 24,4;: l/Jhr O 0.2?: 8&Jl/$N7 O ;:0N7 D*B +T-=hr

o :thStep 5 Con3ert 8&Jhr to *W

6# 6 *Wh D 4;62 8&2# 2,@60,6:; 8&Jhr V 4;62 8&J*Wh D


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g # ;

o uantify *We (utput Potential

'

!et Cycle %ffecti3eness fro Cur3es

' >ultiply eat +3aila/le /y Cycle %ffecti3eness

?:



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g # ; #

??

o 6stStep 5 Koo* up the Cycle %fficiency on Chart 6

o "0N7 Condensing Water $ 60N )ise#

o 2ndStep 5 Calculate the *We Potential for 0N7 Condensing Water $ 60N )ise

@24*W O 6:R D 1*7 kWe

240N7

6:R

Chart 1

i$ing :# a ;o< % E+am#le @


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g # ; #

o eat Source 5 Stea


' 7low )ate= 9B77; SCF!

' Calculate eat +3aila/le

?

TpcmQ =

o Where=o D the >ass 7low of the Waste eat >ediu "l/Jhr#m

i$ing :# a ;o< % Condensing E+am#le


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g # ; g #

o Condensing Source

'%ntering and Kea3ing eperatures

'Calculate 7low )ate )euired

0N7 Condensing Water $ 60N )ise

7low in gp D otal %nergy +3aila/le 5 %lectricity Produced ep )ise O CPO ensity O 0.644?@0? ft

4Jgal O ?0 inJhr

0.644?@0? O ?0 D @.020@44

D 2,@0:,0:; 8&Jhr 5 "624*We O 4;62 8&JhrJ*W#

60N7 O 0.999 8&Jl/$7 O ?2.269 l/Jft4O @.020@44

D >8< g.,

?@

i$ing :# a ;o


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g # ;

o %lectrical

' 62 >onths 8ills

'

Calculate Pay/ac*' S*etch !eoetry 5 &nit Placeent 3. Connection Point

' 7luid Connections J other ser3ices

?9


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Waste eat !enerator

han* you

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Waste Heat Generator