Answered: I- Rate of heat transfer per unit area…

I- Rate of heat transfer per unit area (1m) through the composite wall. II- Determine also the temperature (Tp) as shown in the figure.

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

Q: Consider the section of wall as shown in the figure, assuming one dimensional
heat flow, determine the following:
I- Rate of heat transfer per unit area (1m³) through the composite wall.
II- Determine also the temperature (Tp) as shown in the figure.
To01
= 30 °C
%3D
Too2 = 2 °C
hi = 20 w/m?.°C
8 cm
h2 = 12 w/m2.°C
20 cm
A
F
%3D
kA = 0.6 W/m .°C
D TD
%3D
30 cm
kB = 0.8 W/m .°C
%3D
Too1
T02
kC = 0.9 W/m .°C
hi
в | Е
h2
10 cm
kD = 0.7 W/m .°C
kE = 0.5 W/m .°C
kF = 0.04 W/m .°C
8 cm
6cm
12cm
Good Luck

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