A solar collector consists of a long duct through whichair
Chapter 13, Problem 13.79(choose chapter or problem)
A solar collector consists of a long duct through whichair is blown; its cross section forms an equilateral tri-angle 1 m on a side. One side consists of a glass coverof emissivity ?1?0.9, while the other two sides areabsorber plates with ?2??3?1.0.During operation the surface temperatures are knownto be T1?25?C, T2?60?C, and T3?70?C. What is the net rate at which radiation is transferred to thecover due to exchange with the absorber plates?
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