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KNOWN: Temperatures and convection coefficients associated with fluids at inner and outer surfaces of a composite wall. Contact resistance, dimensions, and thermal conductivities associated with wall materials. FIND: (a) Rate of heat transfer through the wall, (b) Temperature distribution. SCHEMATIC: LL=0.04 W/m-K Too,1=200°C h₁ =10 W/m²-K To T5,2 T2 T00,1 KA=0.1 W/mK- ᏂᎪ hA KA Rtc A h₂A Too,2 = 40°C H=2m, W-2.5m, A-5m² h₂ =20W/m²-K t,c RC = 0.30m²-K/W LA=0.01m, LB=0.02m 9' ASSUMPTIONS: (1) Steady-state conditions, (2) One-dimensional heat transfer, (3) Negligible radiation, (4) Constant properties.

KNOWN: Temperatures and convection coefficients associated with fluids at inner and outer surfaces of a composite wall. Contact resistance, dimensions, and thermal conductivities associated with wall materials. FIND: (a) Rate of heat transfer through the wall, (b) Temperature distribution. SCHEMATIC: LL=0.04 W/m-K Too,1=200°C h₁ =10 W/m²-K To T5,2 T2 T00,1 KA=0.1 W/mK- ᏂᎪ hA KA Rtc A h₂A Too,2 = 40°C H=2m, W-2.5m, A-5m² h₂ =20W/m²-K t,c RC = 0.30m²-K/W LA=0.01m, LB=0.02m 9' ASSUMPTIONS: (1) Steady-state conditions, (2) One-dimensional heat transfer, (3) Negligible radiation, (4) Constant properties.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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KNOWN: Temperatures and convection coefficients associated with fluids at inner and outer surfaces of a composite wall. Contact resistance, dimensions, and thermal conductivities associated with wall materials. FIND: (a) Rate of heat transfer through the wall, (b) Temperature distribution. SCHEMATIC: LL=0.04 W/m-K Too,1=200°C h₁ =10 W/m²-K To T5,2 T2 T00,1 KA=0.1 W/mK- ᏂᎪ hA KA Rtc A h₂A Too,2 = 40°C H=2m, W-2.5m, A-5m² h₂ =20W/m²-K t,c RC = 0.30m²-K/W LA=0.01m, LB=0.02m 9' ASSUMPTIONS: (1) Steady-state conditions, (2) One-dimensional heat transfer, (3) Negligible radiation, (4) Constant properties.
Transcribed Image Text:KNOWN: Temperatures and convection coefficients associated with fluids at inner and outer surfaces of a composite wall. Contact resistance, dimensions, and thermal conductivities associated with wall materials. FIND: (a) Rate of heat transfer through the wall, (b) Temperature distribution. SCHEMATIC: LL=0.04 W/m-K Too,1=200°C h₁ =10 W/m²-K To T5,2 T2 T00,1 KA=0.1 W/mK- ᏂᎪ hA KA Rtc A h₂A Too,2 = 40°C H=2m, W-2.5m, A-5m² h₂ =20W/m²-K t,c RC = 0.30m²-K/W LA=0.01m, LB=0.02m 9' ASSUMPTIONS: (1) Steady-state conditions, (2) One-dimensional heat transfer, (3) Negligible radiation, (4) Constant properties.
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