Q1: Consider one-dimensional conduction in a plane composite wall (Im x Im) as shown in the figure below. The outer surfaces are exposed to a fluid at 25°C and a convection heat transfer coefficient of 1000 W/m K. The middle wall B experiences uniform heat generation dg. while there is no generation in walls A and C. The temperatures at the interfaces are T=261°C and T: -211°C. Assuming negligible contact resistance at the interfaces: Al) Determine the outside surface temperature of walls A and C? B) Compute the value of dg? (20 M) L h 11 11 B. ームー-2g k = 25 W/m-K A = 50 W/m-K L= 30 mm L = 30 mm = 20 mm %3D

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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Q1: Consider one-dimensional conduction in a plane composite wall (Im x Im) as shown in
the figure below. The outer surfaces are exposed to a fluid at 25°C and a convection heat transfer
coefficient of 1000 W/m K. The middle wall B experiences uniform heat generation dg, while
there is no generation in walls A and C. The temperatures at the interfaces are T=261°C and T;
-211°C. Assuming negligible contact resistance at the interfaces:
A) Determine the outside surface temperature of walls A and C?
B) Compute the value of dg?
(20 M)
A
B.
ーム
k= 25 Wim-K
A = 50 W/m-K
L = 30 mm
Le= 30 mm
L = 20 mm
%3D
Transcribed Image Text:Q1: Consider one-dimensional conduction in a plane composite wall (Im x Im) as shown in the figure below. The outer surfaces are exposed to a fluid at 25°C and a convection heat transfer coefficient of 1000 W/m K. The middle wall B experiences uniform heat generation dg, while there is no generation in walls A and C. The temperatures at the interfaces are T=261°C and T; -211°C. Assuming negligible contact resistance at the interfaces: A) Determine the outside surface temperature of walls A and C? B) Compute the value of dg? (20 M) A B. ーム k= 25 Wim-K A = 50 W/m-K L = 30 mm Le= 30 mm L = 20 mm %3D
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