Abstract
A method of drying grain with alternate periods of blowing hot air through the grain bed (bin) followed by rest-periods is considered. An attempt is made to give the basic relationship between the “blowing ratio”, that is, the ratio of the cycle time to the blowing time, and the efficiency of drying for various temperatures and air velocities through the grain. The effect of this drying method on the final quality of the grain is also discussed. The practical application of the above drying system was considered in a multi-bin drier where the number of bins was equal to the value of the blowing ratio. It was established that this system, operating at its optimum blowing ratio, was more economical than the conventional system with continuous blowing.
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