The left side is exposed to 33 C air temperature while the right side is exposed to air at a temperature of 12 C. Assume unidirectional and steady state flow along x-direction. Neglect radiation effects Calculate the total heat flow, and overall heat transfer coefficient of the system. Also calculate the temperature between the interface of A and BC, E and F, G and H.

The left side is exposed to 33 C air temperature while the right side is exposed to air at a temperature of 12 C. Assume unidirectional and steady state flow along x-direction. Neglect radiation effects Calculate the total heat flow, and overall heat transfer coefficient of the system. Also calculate the temperature between the interface of A and BC, E and F, G and H.

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

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

100%

HEAT TRANSFER: Combined Conduction and Convection

A series of bricks, whose thickness are all equal to 1.3 m, are arrange according to the figure
shown below
0.53 m
0.53 m
A
E
-O
F
B
1m
C
G
D
1m
H
Thermal Conductivities
1 m
Material
A
B
с
D
E
Convective Coefficient
hi 12 kW/m2-K
ho=23 kW/m2-K
The left side is exposed to 33 C air temperature while the right side is exposed to air at a
temperature of 12 C. Assume unidirectional and steady state flow along x-direction. Neglect
radiation effects
F
G
H
K (kW/m-K)
0.50
1.3
0.50
0.75
0.75
0.5
1.3
0.3
Calculate the total heat flow, and overall heat transfer coefficient of the system.
Also calculate the temperature between the interface of A and BC, E and F, G and H.

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