Consider the directionally selective surface having the directional emissivity ??, as shown. Assuming that the surface is
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Consider the directionally selective surface having the directional emissivity ??, as shown. Assuming that the surface is isotropic in the ? direction, calculate the ratio of the normal emissivity ?n, to the hemispherical emissivity ?h,
Transcribed Image Text:
45° 0.8 0. 0.3
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Related Book For
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
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