【摘要】 本文研究了初含水率、干燥周期、料层厚度相同时，不同供热方式（热风、热风与辐射、热风与辐射并加湿）的白菜种子在固定床的干燥动力学及其活性，与传统的只热风供热相比，当干球温度相同时辐射加热风干燥的种子终含水率比低１３．８％、发芽率比高０．３％，而辐射加热风并加湿干燥其终含水率比低５．８％，发芽率比高０．８％。为确保种子活力，建立了褚－杨白菜种子临界温度Ｔｃｖ方程，并已验证其正确性．该方程为蔬菜种子干燥提供了理论基础并有重要的工程意义。更多还原

【Abstract】 This paper has studied the Chinese cabbage seed drying dynamics and its viability with the similar initial moisture content and the same drying period, the same layer thickness, but different heating ways (hot air; hot air with the addition of radiation; hot air with the addition of radiation and moisten), respectively in Ased bed. Compared to the traditional only hot air heating, with the same dry bulb temperature, in hot air with radiation, the final moisture content ratio lower 13.8%, the germination percentage ratio higher 0.3%; in hot air with radiation and moisten, the final moisture content ratio of seed lower 5.8%, the germination percentage ratio higher 0.8%. In order to guarantee vegetable seed viability, we established the Chu-Yang seed critical temperature equation. The Tcv equation provides the theoretical basis for the drying of vegetable seed, and it has important engineering meanings.更多还原