Q: Consider the section of wall as shown in the figure, assuming one dimensional heat flow, determine the following: I- Rate of heat transfer per unit area (1m) through the composite wall. II- Determine also the temperature (TD) as shown in the figure. T01 = 30 °C Too2 = 2 °C hi = 20 w/m?.°C 8 cm h2 = 12 w/m?.°C 20 cm A F kA = 0.6 W/m .°C D TD %3D 30 cm kB = 0.8 W/m .°C T T01 To2 kC = 0.9 W/m .°C hi E h2 10 cm kD = 0.7 W/m .°C kE = 0.5 W/m .°C kF = 0.04 W/m .°C 8 cm - 6cm 12cm %3D

Q: Consider the section of wall as shown in the figure, assuming one dimensional heat flow, determine the following: I- Rate of heat transfer per unit area (1m) through the composite wall. II- Determine also the temperature (TD) as shown in the figure. T01 = 30 °C Too2 = 2 °C hi = 20 w/m?.°C 8 cm h2 = 12 w/m?.°C 20 cm A F kA = 0.6 W/m .°C D TD %3D 30 cm kB = 0.8 W/m .°C T T01 To2 kC = 0.9 W/m .°C hi E h2 10 cm kD = 0.7 W/m .°C kE = 0.5 W/m .°C kF = 0.04 W/m .°C 8 cm - 6cm 12cm %3D

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.48P

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Q: Consider the section of wall as shown in the figure, assuming one dimensional heat flow, determine the following: I- Rate of heat transfer per unit area (1m) through the composite wall. II- Determine also the temperature (TD) as shown in the figure. T01 = 30 °C T02 = 2 °C hi = 20 w/m?.C || cm h2 = 12 w/m?.C 20 cm A F kA = 0.6 W/m .°C D TD %3D 30 cm kB = 0.8 W/m .°C To01 T2 kC = 0.9 W/m .°C hi в | Е h2 10 cm kD = 0.7 W/m .°C kE = 0.5 W/m .°C %3D kF = 0.04 W/m .°C 8 cm 6cm 12cm
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Q: Consider the section of wall as shown in the figure, assuming one dimensional heat flow, determine the following: I- Rate of heat transfer per unit area (1m2) through the composite wall. II- Determine also the temperature (Tp) as shown in the figure. To1 = 30 °C To2 = 2 °C hi = 20 w/m?.°C 8 cm %3D h2 = 12 w/m?.°C 20 cm A F kA = 0.6 W/m .°C TD 30 cm kB = 0.8 W/m .°C To1 T02 kC = 0.9 W/m .°C h1 BE h2 10 cm kD = 0.7 W/m .C kE = 0.5 W/m .°C %3D kF = 0.04 W/m .°C 8 cm 6cm 12cm
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