Answer the following: Can the view factor of a surface with respect to itself be nonzero? If so, what kind of surface exhibits such behavior?
What is a radiation shield and how is net radiation transfer between two surfaces affected by an intervening shield? Is it advantageous for a shield to have a large surface absorptivity or reflectivity?
Can the view factor of a surface with respect to itself be nonzero? If so, what kind of surface exhibits such behavior?
What is the reciprocity relation for view factors? What is the summation rule?
What is a radiation shield and how is net radiation transfer between two surfaces affected by an intervening shield? Is it advantageous for a shield to have a large surface absorptivity or reflectivity?