Consider two diffuse surfaces A 1 and A 2 on the inside of a spherical enclosure of radius R Using the following methods derive an expression for the view factor F 12 in terms of A 2 and R (a) Find F 12 by beginning with the expression F ij q i j AiJi (b) Find F 12 using the view factor integral, Equation 13 1 Spherical surface A2

Question: Consider two diffuse surfaces A 1 and A 2 on the inside of a spherical enclosure of radius R. Using the following methods derive an

Consider two diffuse surfaces A 1 and A 2 on the inside of a spherical enclosure of radius R. Using the following methods derive an expression for the view factor F₁₂ in terms of A₂ and R.

(a) Find F₁₂ by beginning with the expression F_ij = q_i?j?/ AiJi.

(b) Find F₁₂ using the view factor integral, Equation 13.1.

Spherical surface A2

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