| 摘要 |
PROBLEM TO BE SOLVED: To obtain a highly precise water content during drying by accurately predicting the temperature of grain while avoiding the worst situation of excessive drying. SOLUTION: Different calculation formulae (a first calculation formula 1 x=a+(40°C-a)×b×(factor 1)×(factor 2) and a second calculation formula 2 N=x+(a-y)×0.5+(b-a)×z×(factor 3)) are used for computing temperature predicted values for the grain during an initial drying period when the temperature of the grain sharply rises and after the initial drying period when the temperature of the grain is relatively stable (gently lowers). During the initial drying period, a predicted value x is obtained which has relatively lower precision but is free from at least the excessive drying of the grain. On the other hand, after the initial drying period, a predicted value N is obtained which has relatively higher precision and is adequate for correcting the water content. COPYRIGHT: (C)2007,JPO&INPIT
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