ABSTRACT
Drying, generally occurs due to heating of moist material and with the surrounding air humidity being less compared to its saturation level. Heat can be supplied to the material to be dried by conduction, convection, and radiation [1]. Most of the drying equipments fall in the category of the conduction and convection type. In convection type, the heating medium, usually air or the flue gas of combustion comes in direct contact with the wet material. In conduction type, heat is transmitted indirectly by contact of the wet material with a hot surface. In radiation, heat is transmitted directly and solely from a heated body to the wet material by radiation of heat.
