Determine radiation heat loss from a steel tube of outside diameter 60 mm and 5m long at a temperature of 327 °C if the tube is inside a square conduit made of brick having 0.4 m side as shown in given figure and temperature of 25 °C. (Take, ɛ(steel)= 0.8, e (brick)= 0.9. Steel tube(1) Brick(2) A 5889.25W B 5656.47W

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
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Chapter7: Forced Convection Inside Tubes And Ducts
Section: Chapter Questions
Problem 7.48P
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Q.4
Determine radiation heat loss from a steel
tube of outside diameter 60 mm and 5m
long at a temperature of 327 °C if the tube
is inside a square conduit made of brick
having 0.4 m side as shown in given figure
and temperature of 25 °C. (Take, ɛ(steel)=
0.8, e(brick)= 0.9.
Steel tube(1)
Brick(2)
A
5889.25W
5656.47W
C
5149.41W
D
6125.84W
Transcribed Image Text:Q.4 Determine radiation heat loss from a steel tube of outside diameter 60 mm and 5m long at a temperature of 327 °C if the tube is inside a square conduit made of brick having 0.4 m side as shown in given figure and temperature of 25 °C. (Take, ɛ(steel)= 0.8, e(brick)= 0.9. Steel tube(1) Brick(2) A 5889.25W 5656.47W C 5149.41W D 6125.84W
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