Radiation heat transfer of arbitrary three-dimensional absorbing, emitting and scattering media and specular and diffuse surfaces

Radiation heat transfer was studied by applying the Radiation Element Method by Ray Emission Model (REM2). The REM2 is a generalized numerical technique for computing radiation heat transfer between absorbing, emitting and scattering media and specular surfaces with arbitrary three-dimensional configurations. The ray emission model for different types of radiation elements is expressed by polyhedrons and polygons. Arbitrary thermal conditions can be specified for each radiation element and generalized radiation transfer can be attained for both of surface and volume elements.