ABSTRACT
Generally, the term “drying” refers to the removal of relatively small amount of moisture from a solid or nearly solid material by evaporation. †erefore, drying involves both heat and mass transfer operations simultaneously. In convective drying, the heat required for evaporating moisture from the drying product is supplied by the external drying medium, usually air. Owing to the basic dierences in drying characteristics of grains in thin layer and deep bed, the whole grain drying process is divided into thin layer drying and deep bed drying.
