Q1: Consider one-dimensional conduction in a plane composite wall (1m x Im) as shown in the figurebelow. The outer surfaces are exposed to a fluid at 25°C and a convection heat transfer coefficient of1000 W/m2.K. The middle wall B experiences uniform heat generation dB, while there is no generationin walls A and C. The temperatures at the interfaces are T1=261°C and T2=211°C. Assuming negligiblecontact resistance at the interfaces:A) Determine the outside surface temperature of walls A and C?B) Compute the value of q;?T2T h25241AB-2LB Lc.03TakA = 25 W/m-Kkc = 50 W/m-KLA = 30 mmLg = 30 mmLc = 20 mm%3D

Answered: Image /qna-images/answer/896e56ae-6f07-4bd5-8e2a-a5ff7082df76.jpg

01: Consider one-dimensional conduction in a plane composite wall (Tm x pelow. The outer surfaces are exposed to a fluid at 25°C and a convection heat transfer coefficient c 000 W/m2.K. The middle wall B experiences uniform heat generation qB, while there is no generatic n walls A and C. The temperatures at the interfaces are T1=261°C and T2=211°C. Assuming negligib ontact resistance at the interfaces: A) Determine the outside surface temperature of walls A and C? B) Compute the value of dg? T2 T h 25 241

01: Consider one-dimensional conduction in a plane composite wall (Tm x pelow. The outer surfaces are exposed to a fluid at 25°C and a convection heat transfer coefficient c 000 W/m2.K. The middle wall B experiences uniform heat generation qB, while there is no generatic n walls A and C. The temperatures at the interfaces are T1=261°C and T2=211°C. Assuming negligib ontact resistance at the interfaces: A) Determine the outside surface temperature of walls A and C? B) Compute the value of dg? T2 T h 25 241

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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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

Q1: Consider one-dimensional conduction in a plane composite wall (1m 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/m2.K. The middle wall B experiences uniform heat generation dB, while there is no generation
in walls A and C. The temperatures at the interfaces are T1=261°C and T2=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 q;?
T2
T h
25
241
A
B
-2LB Lc
.03
Ta
kA = 25 W/m-K
kc = 50 W/m-K
LA = 30 mm
Lg = 30 mm
Lc = 20 mm
%3D

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