Radiation Configuration Factor

The Radiative heat transfer rate among two gray bodies can be computed by the equation expressed below.

Q = f_a f_e σA(T₁⁴ T₂⁴ )

Here:

f_a = is the shape factor, that depends on the spatial arrangement of the two objects

f_e = is the emissivity factor, that depends on the emissivities of both objects

The two individual terms f_a and f_e can be joint and given the symbol f. The heat flow among two gray bodies can now be examined by the equation shown below:

Q = f σ A (T₁⁴ - T₂⁴)

The symbol f is dimensionless factor at times termed as the radiation configuration factor that takes into account the emissivity of both the bodies and their associative geometry. The radiation configuration factor is generally found in a text book for the given condition. Once the configuration factor is acquired, the overall total heat flux can be examined. The radiant heat flux must only be involved in a problem whenever it is greater than 20% of the problem.