Consider a material that is gray, but directionally selective with (, ) = 0.5(1 cos
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Consider a material that is gray, but directionally selective with αθ (θ, Φ) = 0.5(1 – cos Φ). Determine the hemispherical absorptivity α when collimated solar flux irradiates the surface of the material in the direction θ = 45° and Φ = 0°. Determine the hemispherical emissivity B of the material.
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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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