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Right triangle to perpendicular rectangle with coincident base

 

 

Function F3D_37(W,L,D) returns the view factor between a right triangle and a perpendicular rectangle that share a base

 

Inputs:

W = height of rectangle [m] or [ft]

L = height of triangle [m] or [ft]

D = length of base [m] or [ft]

 

Example: 

$UnitSystem SI Pa J K m

D=0.1 [m]

L=0.05 [m]

W=0.2 [m]

F=F3D_37(W,L,D)

{Solution: F=0.3531}

 

Reference: 

Sauer, H.J., "Configuration factors for radiant energy interchange with triangular areas," ASHRAE Transactions, Vol. 80, Part 2, (1974).