Question

Derive the expression for shape factor for radiation emitting from a surface 'i' and reaching the surface 'j'.

23 Apr 2026
Answer :
Word Count : 387
In radiative heat transfer, the shape factor, also known as the view factor or configuration factor, represents the fraction of radiation leaving one surface that directly reaches another surface. It depends only on the geometry and relative orientation of the surfaces, not on their temperatures or properties. Consider two differential surface elements (dA_i) and (dA_j), separated by a distance (r), with angles (\theta_i) and _________ __________ _____ __________ _______ _________ __________ _________ _________ ______.
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