The spectral emissivity of an opaque surface at 1500 K is approximated as Determine the total emissivity

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The spectral emissivity of an opaque surface at 1500 K is approximated as

for λ<2 μm | ε -0 0.85 ε) for 2 λ 6 μη for for λ>6 μη =0 ε


Determine the total emissivity and the emissive flux of thesurface.

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Fundamentals of Thermal-Fluid Sciences

ISBN: 978-0078027680

5th edition

Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala

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