Simulation of grain drying in bins with partially perforated floors. II. Calculation of moisture content
1992
Smith, E.A. | Jayas, D.S. | Muir, W.E. | Alagusundaram, K. | Kalbande, V.H.
It was shown in the first part of this article that lines of constant air traverse time indicate the approximate position of the drying front as the grain bed dries. This determines the position of the front but not the values of moisture content as the drying proceeds. In the second part, a method is developed for calculating the moisture content and temperature of the grain during drying. It is shown that the heat and mass transport along the streamlines dominates the drying process, with transport across the streamlines being negligible. Thus, drying can be simulated along individual streamlines and then the moisture content profile of the grain bed can be determined using isotraverse lines as lines of constant moisture content. The results of the simulation are compared with experimental results in which the air flow and moisture content are fully three dimensional.
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