太阳能真空玻璃谷物干燥装置水势模型研究

Study on Water Model of Solar Energy and Vacuum Glass Grain Drying Equipment

在设计太阳能真空玻璃谷物干燥装置的基础上,对其干燥工艺流程进行分析,建立谷物内部水分的流动模型,对谷物干燥循环过程中谷物的含水率进行模拟计算,试验研究与分析表明,干燥9个循环时间后,谷物的含水率达到14.036 8%,在12个循环之后,谷物含水率下降到12.974 1%,之后很难继续降低含水率。干燥效率最佳,谷物在仓内干燥最佳时间为2.57 h。

The paper introduces the process flow of solar energy and vacuum glass grain drying equipment. Research on the water flow model of inside grain. Calculate grain moisture content about each drying cycle. Researches show that grain moisture content falls below 14.036 8% after nine drying loops,and falling below 12.974 1% after twelve drying loops,and It is hard to continue to reducing the moisture. Calculated the dry- ing time is 2.57 hours.