Two plates are separated by two radiation shields with emissivities of 0.10 and 0.15 for both sides. The two plates are said to have maintained uniform temperatures 600 K (emissivity = 0.6) and 300 K (emissivity = 0.7). Calculate the net rate of heat transfer (W/m2) between the two plates with and without the shields per unit surface area. Determine the rate of heat transfer (W/m2) between the two plates when one plate (emissivity = 0.10) is removed. Assume that the temperatures of radiations shield are in steady operation.

Two plates are separated by two radiation shields with emissivities of 0.10 and 0.15 for both sides. The two plates are said to have maintained uniform temperatures 600 K (emissivity = 0.6) and 300 K (emissivity = 0.7). Calculate the net rate of heat transfer (W/m2) between the two plates with and without the shields per unit surface area. Determine the rate of heat transfer (W/m2) between the two plates when one plate (emissivity = 0.10) is removed. Assume that the temperatures of radiations shield are in steady operation.

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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