Irradiation

Covered in Section 12.2, Irradiation is the radiation incident (acted upon) on a surface. It is a radiation heat flux represented by and listed in table 12.1.

Components

There are three main components to irradiation.

For most surfaces you can use Equation 12.2:

For an opaque medium there is no transmission so Equation 12.2 becomes 12.3:

See Section 12.2 and ME3304 S24 Lecture Note (7) Radiation for more infomation.