Radiation Heat Transfer Coefficient for a Gray Surface
Radiation Heat Transfer Coefficient for a Gray Surface
This Demonstration studies the relationship between the radiation heat transfer coefficient and the temperature at the surface of the object and the temperature of the surroundings (idealized as an isothermal enclosing surface that is much larger than the object).
h
r
T
s
T
sur
You can vary the emissivity and the temperature . For a "gray" surface, the incident radiation is reflected, absorbed, and transmitted to varying degrees. This can be parametrized in terms of the emissivity, in the range .
ε
T
s
0<ε<1