Solved: A diffuse, opaque surface at 700 K has spectral
Chapter , Problem 12.54(choose chapter or problem)
A diffuse, opaque surface at 700 K has spectral emissivities of 0 for 0 3 m, 0.5 for 3 m 10 m, and 0.9 for 10 m . A radiant flux of 1000 W/m2 , which is uniformly distributed between 1 and 6 m, is incident on the surface at an angle of 30 relative to the surface normal. GS = 10 Calculate the total radiant power from a 104 m2 area of the surface that reaches a radiation detector positioned along the normal to the area. The aperture of the detector is 105 m2 , and its distance from the surface is 1 m.
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