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SF_25

 

 

Function SF_25 provides the shape factor ([m] or [ft]) for radial conduction through a hollow cylinder.

 

Inputs:

 L = length of cylinder ([m] or [ft])

 r_in = inner radius of cylinder ([m] or [ft])

 r_out = outer radius of cylinder ([m] or [ft])

 

Example: SF = SF_25(L, rin, rout)

 

Reference: Barron, R.F., G.F. Nellis, Cryogenic Heat Transfer, 2nd Edition, Taylor and Francis, New York, (2015).

 

Example:

$UnitSystem SI Mass J K Pa Radian

$VarInfo L, r_in, r_out, SF units=m

L = 1 [m]

r_in = 0.1 [m]

r_out = 0.2 [m]

SF = SF_25(L, r_in, r_out)

 

{Solution:

SF = 9.065 [m]}

 

Shape Factors Index