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1.67=0,025

0,85+0,25

0,56+

x

0,041+0,03

0,70

1.67=0,029+0,446+ x0,041

+0,043

1.67=0,518+ x

0,041

1,152= x

0,041x=0,047

a x=4 cm=0,04m a je R=0,518+ 0,04

0,041=1,494

m2K

W

k= 1

0,13+1,494+0,04=

1

1,664=0,6=0,6

Konstrukcija NE ZADOVOLJAVA.

+-ajamo x=5cm=0,05m a je R=0,518+ 0,05

0,041=1,737

m2K

W

k= 10,13+1,737+0,04

= 11,907

=0,52

7/24/2019 Elaborat fizika

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Pod na tlu

1. 8o'a oblo*a 2.2cm2. 9emeti e-tri: 4cm

8;9

7/24/2019 Elaborat fizika

4/18

etri od kam.

agr. 3 *ermoi+ola

,ija

Stakle"

a -"a

0.0 200

0.0&1

1.0

& %eme"t"i

etri

Beto"

od kam.

agr.

0.0& 2200 1.&0 0.02'

$ idroi+ola,i

ja

ieloj

"a #it.

0.0002 '$0 0.1' 0.0010

$

e 0.00

0.122 240$

kma5= 04$W/m2K

Ri = 041m2K/W

Re = 0 m2K/W

Rk=1

k

Rk=2

Rk=R i+R+R e

R=RkRiRe

R=1,83

R=d

1

1+d

2

2+d

3

3+d

4

4+d

5

5

1,83=0,022

0,21+0,04

1,4+

x

0,041+0,04

1,4+0,0002

0,19

1,83=0,105+0,029+ x

0,041+0,029+0,00105

7/24/2019 Elaborat fizika

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1,83=0,164+ x

0,041

1,666= x0,041=x=0,068m

6-oje"o x=7cm=0,07m 4 7a je R=0,164+ 0,07

0,041=1,871

k= 10,17+1,871+0

= 12,04

k=0,49

7/24/2019 Elaborat fizika

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5. >% lo?a 10 cm6. Malter 2cm

%roj &loj Materijal d

(m)

(kg/m3)

(W/mK)

d/=R

(m2K/W)

:i 0.13

1 8o'a oblo*a 8arket 0.022 !00 0.21 0.105

2 >rm. cem.

e-tri:

%eto o'

kam.a*r.

0.04 2200 1.40 002

3 Termoizolacija &taklea

,a

0.0! 150 0.041 1!0!

4 9em. e-tri: %eto o'

kam.a*r.

0.04 2200 1.40 0.02

5 o-ei -loj >% lo?a 0.1 2500 2.33 0.043

6 &olja

obra'a

Malter 0.02 1!00 0.5 0.023

:e 0.04

; 0.252 2104

kma5= 04$W/m2K

Ri = 041m2K/W

Re = 0.10 m2K/W

Rk=1

k

Rk=2

Rk=R i+R+R e R=RkRiR e

R=1,73

R=d

1

1+d

2

2+d

3

3+d

4

4+d

5

5+d6

6

7/24/2019 Elaborat fizika

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1,73=0,022

0,21+0,04

1,40+

x

0,041+0,04

1,4+ 0,1

2,33+0,02

0,85

1,73=0,105+ x

0,041+0,487+0,028+0,043+0,0235

1,73=0,683+ x

0,0411,05=

x

0,041=0.043=x=0,07m

+-ojeo x=7cm=0,07m k=

1

Ri+R+Re=

1

2,104k=0,47

7/24/2019 Elaborat fizika

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1. Malter 2cm2. >% lo?a 10cm3. 9emeti e-tri: 4cm

8ara braa 0.02 cm4. Termoizolacija 6cm8;9

7/24/2019 Elaborat fizika

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Rk=1

k

Rk=2

5Rk=R i+R+R e

R=RkRiRe

R=2,36

2,36=0,02

0,85+ 0,1

2,33+0,04

1,4+

x

0,041+0,04

1,4+0,015

0,19

2,36=0,0235

+0,429

+0,0286

+ x

0,041+0,0286

+0,0789

2,36=0,588+ x

0,041

1,772= x

0,041=0,073=x=0,08m

+-ojeo vx=6cm=0,06m a jeR=0,588+

0,08

0,041=2.54, k=

1

Ri+R+Re=

1

2,68

k=0,37

7/24/2019 Elaborat fizika

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Spoljni zid- pad temperature

ti=20

te=12

t=tite=20 (12 )=32

Rk=R i+R+R e

Rk=0,13+1,67+0,04

Rk=1,84m

2K

W

qzim= t

Rk=

32

1,84=17,39

W

m2

tj=qzim Rj=t

RkRj

ti=17,39 0,13=2,26

t1=17,39 0,018=0,313

t2=17,39 0,33=5,74

t3=17,39 1,22=21,22

t4=17,39 0,02=0,348

te=17,390,04=0,696

V1=Vit1

ti=20

ti=2,26 Vi=17,74

7/24/2019 Elaborat fizika

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t1=0,313 V

1=17,427

t2=5,74 V

2=11,687

t3=21,22 V

3=9,533

t4=0,348 V

4=9,881

t5=0,696 V

5=8,989

te=10.685

7/24/2019 Elaborat fizika

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7/24/2019 Elaborat fizika

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Ravan krov pad temperature

ti=20

te=12

t=tite=32

Rk=R i+R+R e

Rk=0,10+2,36+0,04

Rk=2,5m

2K

W

qzim= t

Rk=32

2,5=12,8

W

m2

tj=qzim Rj=t

RkRj

ti=12,8 0,10=1,28

t1=12,8 0,0235=0,301

t2=12,8 0,043=0,55

t3=12,8 0,0286=0,366

t4=12,81,951=24,97

t5=12,8 0,0286=0,366

t6=12,8 0,0789=1,01

te

=12,8 0.04=0.512

V1=Vit1

ti=20

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ti=1.28 Vi=18,78

t1=0.301 V

1=18,479

t2=0,55 V

2=17,929

t3=0.366 V

3=17,563

t4=24,97 V

4=7,407

t5=0.366 V

5=7,773

t6=1,01 V

6=8,873

te=0.512 Ve=9,385

te=12

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Spoljni zid- pad temperature-ljetnji period

ti=25

te=60

t=tite=35

Rk=R i+R+R e

Rk=0,13+1,67+0,04

Rk=1,84m

2K

W

qljet=t

Rk=

35

1,84=19,02

W

m2

tj=qljetRj= t

RkRj

te=19,020,04=0,842

t4

=19,02 0,02=0,421

t3=19,02 1,22=20,403

t2=19,020,33=6,941

t1=19,020,018=0,379

ti=19,020,13=2,734

V1=Vit1

te=60

te=0,842 Vi=59,158

t4=0,421 V

1=58,737

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t3=20,403 V

2=38,334

t2=6,941 V

3=31,393

t1=0,379 V

4=31,034

t5=2,734 V

5=28,28

ti=25

Ravan krov pad temperature-ljetnji period

ti=25

te=95

t=70

Rk=R i+R+R e

Rk=0,10+2,36+0,04

Rk=2,5m

2K

W

qzim= t

Rk=70

2,5=28

W

m2

tj=qzim Rj=t

RkRj

7/24/2019 Elaborat fizika

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te=28 0.04=1,55

t6=28 0,0789=3,058

t5=28 0,0286=1,108

t4=281,951=56,706

t3=28 0,0286=1,108

t2=28 0,043=1,667

t1=28 0,0235=0,9109

ti=28 0,10=2,8

te=28 0.04=1,55

te=95

te=1,55 Ve=93,45

t6=3,058 V

1=90,392

t5=1,108 V

2=89,284

t4=56,706 V

3=32,578

t3=1,108 V

4=31,47

t2=1,667 V

5=29,803

t1=0.9109 V

6=28,892

ti=2,8 Vi=26,016

ti=25