How do you calculate the radiative heat transfer coefficient?
The Stefan-Boltzman law relates the total amount of radiation emitted by an object to its temperature:
ε = total amount of radiation emitted by an object per square meter (Watts
σ is a constant called the Stefan-Boltzman constant
= 5.67 x 10-8 (Watts
T is the temperature of the object in K.
Radiative heat transfer is a comparison of an actual materials emissivity to a “black body”.
Radiative exchange between two gray, diffuse surfaces may be characterized by calculating the radiative heat transfer coefficient as shown below: