1. Two large plates are maintained at a temperature of 900 K and 500 K respectively. Each plate has area of 6°. Compare the net heat exchange between the plates for the following cases. () Both plates are black (i) Plates have an emissivity of 0.5 Given: T, =900 K T, =500 K A=6m’ To find: () (Qi2)s: Both plates are black

1. Two large plates are maintained at a temperature of 900 K and 500 K respectively. Each plate has area of 6°. Compare the net heat exchange between the plates for the following cases. () Both plates are black (i) Plates have an emissivity of 0.5 Given: T, =900 K T, =500 K A=6m’ To find: () (Qi2)s: Both plates are black

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.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.38P

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