7.) Consider a 5-m-high, 8-m-long, and 0.22-m-thick wall whose representative cross section is as given in the figure. The thermal conductivities of varous materials used, in W/m-°C, are kA = KE= 2, kB =18, kc = 20, kD = 15, and kɛ = 35. The left and right surfaces of the wall are maintained at uniform temperature of 300°C and 100°C, respectively. Assuming heat transfer through the wall to be one- dimensional, determine %3D 100°C 300°C (a) the rate of heat transfer through the wall; (b) the temperature at the point where the sections B, D, and E, meet; and (c) the temperature drop across the section F. A 4 cm 6 cm F B 4 cm E 6 cm 4 cm Disregard any contact resistances at the 8 m interfaces. 1 cm 5 cm | 10 cm | 6 cm

7.) Consider a 5-m-high, 8-m-long, and 0.22-m-thick wall whose representative cross section is as given in the figure. The thermal conductivities of varous materials used, in W/m-°C, are kA = KE= 2, kB =18, kc = 20, kD = 15, and kɛ = 35. The left and right surfaces of the wall are maintained at uniform temperature of 300°C and 100°C, respectively. Assuming heat transfer through the wall to be one- dimensional, determine %3D 100°C 300°C (a) the rate of heat transfer through the wall; (b) the temperature at the point where the sections B, D, and E, meet; and (c) the temperature drop across the section F. A 4 cm 6 cm F B 4 cm E 6 cm 4 cm Disregard any contact resistances at the 8 m interfaces. 1 cm 5 cm | 10 cm | 6 cm

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.

Chapter4: Numerical Analysis Of Heat Conduction

Section: Chapter Questions

Problem 4.32P

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