Answered: The construction of a wall is made of…

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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Question

The construction of a wall is made of different materials as shown below.
Happened. The room temperature is 21 °, the convection coefficient of the inner surface is 6.5 W/m2 ° and the external
The convection coefficient of the surface is given as 17 W/m2°. The wall is 2,135 m high and
It is 3,965 m wide. Material A is located at a height of 0.915 m from the ground. outside temperature
It is given as -6 °. The heat transfer coefficients of the materials and the dimensions are on the figure.
specified. Find the heat transferred from the wall accordingly.

LA=LB=0,0127 m,
Lc=0,0508 m,
Lp=0,0254 m,
Ac=2.135.3,965=8,465 m²
A=1,22.3,965=4,8373 m²
AB=0,915.3,965=3,627 m²
KA=0,15579 W/m °C
kB=0,20772 W/m°C
kc=0,0398 W/m°C
kp=0,1731 W/m°C
h=6,5 W/m°C
has-17 W/M2°C
håis
hie
A
C
D
hiç=hinside
hdış=houtside
B
LA
Lc
LD
0,915 m

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