(2) Calculate the heat flux and overall heat transfer coefficient for two-layer wall, whichconsists of bricks - 1,=0,5 W/(m-K), and the insulating material - 12=0,05 W/(m-K). Layerthickness are as follows: s,=0,3, s,=0,2 m, respectively. The temperatures on the outersurface of walls are: bricks t,=10°C, insulation tą = -5°C. Inside and outside air tempe-ratures are: t,=20°C, and tout= -10°C, respectively.

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(2) Calculate the heat flux and overall heat transfer coefficient for two-layer wall, which consists of bricks - 1,=0,5 W/(m-K), and the insulating material - 12=0,05 W/(m-K). Layer thickness are as follows: s,=0,3, s2=0,2 m, respectively. The temperatures on the outer surface of walls are: bricks t,=10°C, insulation t, = -5°C. Inside and outside air tempe- ratures are: t=20°C, and t= -10°C, respectively.

(2) Calculate the heat flux and overall heat transfer coefficient for two-layer wall, which consists of bricks - 1,=0,5 W/(m-K), and the insulating material - 12=0,05 W/(m-K). Layer thickness are as follows: s,=0,3, s2=0,2 m, respectively. The temperatures on the outer surface of walls are: bricks t,=10°C, insulation t, = -5°C. Inside and outside air tempe- ratures are: t=20°C, and t= -10°C, respectively.

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.40P: One end of a 0.3-m-long steel rod is connected to a wall at 204C. The other end is connected to a...

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