Consider the diffuse surface of Problem 12.28. Determine the surface hemispherical emissivity and emissive power at \(T=300,500\), and \(700 \mathrm{~K}\). At what wavelength does the peak spectral emission occur when the surface is at these temperatures?

Data From Problem 12.28:-

A diffuse surface is characterized by the spectral hemispherical emissivity distribution shown. Considering surface temperatures over the range \(300 \leq T_{s} \leq 1000 \mathrm{~K}\), at what temperature will the emissive power be minimized?

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1.0 = 0.75 0.5 &= 0.50 & = 0.10 0 2 4 6 8 10 (um)