DRYING OF GRAINS IN CONVEYOR DRYER AND CROSS FLOW: A NUMERICAL SOLUTION USING FINITE-VOLUME METHOD

The drying of solids in cross flow band conveyor dryer (continuous operation system) in which particles (thin-layer) move in a wire net conveyor was theoretically studied. A mathematical modeling that considers the influence of the bed porosity and the transient terms in the drying process was developed. The finite volume method and upwind formulation to convective terms were used to solve numerically the governing conservation equations. The results of the relative humidity and temperature of the air and temperature and moisture content of the material (yellow corn kernel) along the drying process are presented and analyzed to examine the influence of the main drying parameters on the quality of the product in the end of the process. This study can be used to help researchers in the optimization of this and others types of driers under small modifications.

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