QI/ An aluminum rod 4.0 cm in diameter and 10 cm long protrudes from a wall that is maintained at 250°C, and air at 40°C is forced it at a velocity of 50 m/s. If the surface emissivity is 0.7, Calculate the total heat loss per unit length if the walls of the enclosing room at 15 °C ?. T, h. T A, A

QI/ An aluminum rod 4.0 cm in diameter and 10 cm long protrudes from a wall that is maintained at 250°C, and air at 40°C is forced it at a velocity of 50 m/s. If the surface emissivity is 0.7, Calculate the total heat loss per unit length if the walls of the enclosing room at 15 °C ?. T, h. T A, A

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.36P

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Question

QI/ An aluminum rod 4.0 cm in diameter and 10 cm long protrudes
from a wall that is maintained at 250°C, and air at 40°C is forced it at a
velocity of 50 m/s. If the surface emissivity is 0.7, Calculate the total heat
loss per unit length if the walls of the enclosing room at 15 °C ?.
T,
h. T
A,= A

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