ABSTRACT
Heat flow in porous media is the study of energy movement in the form of heat, which occurs in many types of processes. The transfer of heat in porous media occurs from the high to the low temperature regions. Therefore, a temperature gradient has to exist between the two regions for heat transfer to happen. It can be done by conduction (within one porous solid or between two porous solids in contact), by convection (between two fluids or a fluid and a porous solid in direct contact with the fluid), by radiation (transmission by electromagnetic waves through space) or by combination of the above three methods [1-12].
