A rectangular parallelepiped consists of gray, diffuse, and
flat surfaces, radiating with each other and nothing else. The surface
temperatures are maintained at the specified values. There is a vacuum in the
enclosure and thus, no other heat transfer mechanism except radiation exists. Use
the given data to find the radiosity and the rate of heat transfer for each
Data: Length = 2 m, depth, 3 m, height 1 m, T1 =
100 C, T2 = 200 C, T3 = 250 C, T4 = 400 C, T5
= 500 C, T6 = 550 C, _1 = 0.5, _2 =
0.65, _3 = 0.75, _4 = 0.8, _5 =
0.55, _2 = 0.65, _3 = 0.85.
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