STUDIES ON DRYING KINETIC MODEL OF CABBAGE SEEDS WITH HEAT PUMP DRYING

摘要：

Using experimental data of cabbage seeds with heat pump drying, twelve kinds of drying models were used with their coefficients and exponents fitted as constants, as functions of temperature of drying air, relative humidity of drying air, and both temperature and relative humidity of drying air to study influences of these two parameters to drying kinetics of cabbage seeds.Three statistical indices including relative percent error EMD, root mean square error ERMS, chi square χ2, were used as criteria to select optimum drying models.Results shows that, after considering influences of both temperature and humidity of drying air, most of the twelve models have attained better prediction precision, especially the modified Henderson and Pabis model and the two-term exponential model.The two-term exponential model has the lowest value of EMD equalling 6.94％, and the modified Handerson and Pabis model has the lowest values of ERMS and χ2, being 0.0152 and 0.0003, respectively.

关键词： seeds drying heat pump

作者: Zhao Haibo Yang Zhao

作者单位: Mechanical School,Tianjin University Ocean School,Yantai University Mechanical School,Tianjin University

会议类型: 国际会议

会议名称: The 7th Asia-Pacific Drying Conference(第七届亚太地区干燥会议 ADC2011)

会议地点: 天津

会议语种:英文

页码: 1-6

在线出版日期: 2011-09-18（万方平台首次上网日期，不代表论文的发表时间）