In radiative heat transfer, heat is transferred between bodies by electromagnetic radiation.
Radiation heat transfer is concerned with the exchange of thermal radiation energy between two or more bodies.The heat transferred into or out of an object by thermal radiation is a function of several components. These include its surface reflectivity, emissivity, surface area, temperature, and geometric orientation with respect to other thermally participating objects. In turn, an object's surface reflectivity and emissivity is a function of its surface conditions (roughness, finish, etc.) and composition.



BY AMIRUL HaZiQ