An opaque surface, (2 mathrm{~m} times 2 mathrm{~m}), is maintained at (350 mathrm{~K}) and is simultaneously exposed
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An opaque surface, \(2 \mathrm{~m} \times 2 \mathrm{~m}\), is maintained at \(350 \mathrm{~K}\) and is simultaneously exposed to solar irradiation with \(G_{S}=1200 \mathrm{~W} / \mathrm{m}^{2}\). The surface is diffuse and its spectral absorptivity is \(\alpha_{\lambda}=0,0.8,0\), and 0.9 for \(0 \leq \lambda \leq 0.6 \mu \mathrm{m}, 0.6 \mu \mathrm{m}<\lambda \leq 1.2 \mu \mathrm{m}, 1.2 \mu \mathrm{m}<\) \(\lambda \leq 2 \mu \mathrm{m}\), and \(\lambda>2 \mu \mathrm{m}\), respectively. Determine the absorbed irradiation, emissive power, radiosity, and net rate of radiation heat transfer from the surface.
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Fundamentals Of Heat And Mass Transfer
ISBN: 9781119220442
8th Edition
Authors: Theodore L. Bergman, Adrienne S. Lavine
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