Consider a small surface of area A 1 = 10 -4 m 2 , which emits diffusely

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Consider a small surface of area A1 = 10-4 m2, which emits diffusely with a total, hemispherical emissive power of E1 = 5 x 104 W/m2.

  (a) At what rate is this emission intercepted by a small surface of area A2 = 5 x 10-4 m2, which is oriented as shown?

  (b) What is the irradiation G2 on A2?

  (c) For zenith angles of θ2 = 0, 30, and 60°, plot G2 as a function of the separation distance for 0.25 < r2 < 1.0 m.

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Fundamentals of Heat and Mass Transfer

ISBN: 978-0471457282

6th Edition

Authors: Incropera, Dewitt, Bergman, Lavine

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