Electrically heated draw batch furnaces are commonly used in the heat treatment industry. Consider a draw batch furnace front made of a 20-mm thick steel plate with a ther- mal conductivity of 25 W/m-K. The furnace is situated in a room with surrounding air temperature of 20°C and an aver- age convection heat transfer coefficient of 10 W/m² K. If the inside surface of the furnace front is subjected to uniform heat flux of 5 kW/m and the outer surface has an emissiv- ity of 0.30, determine the inside surface temperature of the furnace front.

Electrically heated draw batch furnaces are commonly used in the heat treatment industry. Consider a draw batch furnace front made of a 20-mm thick steel plate with a ther- mal conductivity of 25 W/m-K. The furnace is situated in a room with surrounding air temperature of 20°C and an aver- age convection heat transfer coefficient of 10 W/m² K. If the inside surface of the furnace front is subjected to uniform heat flux of 5 kW/m and the outer surface has an emissiv- ity of 0.30, determine the inside surface temperature of the furnace front.

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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Electrically heated draw batch furnaces are commonly
used in the heat treatment industry. Consider a draw batch
furnace front made of a 20-mm thick steel plate with a ther-
mal conductivity of 25 W/m-K. The furnace is situated in a
room with surrounding air temperature of 20°C and an aver-
age convection heat transfer coefficient of 10 W/m2-K. If the
inside surface of the furnace front is subjected to uniform
heat flux of 5 kW/m² and the outer surface has an emissiv-
ity of 0.30, determine the inside surface temperature of the
furnace front.
= 20°C
Furnace
fron
4, = 5 kW/m
Air, 20 C
h= 10 W/m K
e = 0.30
kn25 W/m-K

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