摘要
利用改装的干燥设备,考察了辐射板温度、干燥室压力和物料量对金银花真空远红外辐射干燥的影响。通过水分比曲线的线性化,确定了动力学模型方程为MR=exp(-Ktn)。采用二次回归正交试验设计,拟合了模型参数n、K与各干燥参数的关系式。结果表明,该模型的理论值和实测值吻合良好,能够很好地表达和预测金银花真空远红外辐射干燥的水分比变化规律。
The influence of the temperature of the radiation heater,pressure in the chamber and sample mass on the drying characteristics of vacuum far-infrared radiation drying on honeysuckle was studied by using a self-transformed dryer.By means of linearization of moisture ratio curves,the kinetics model equation was determined as MR=exp（-Ktn）.Quadratic orthogonal regression was employed to fit the relationship between modeling coefficients（n and K） and drying parameters.The results showed that the calculated values of mathematical model were quite suitable for the experimental data,and the model could illustrate moisture ratio changing regulation of vacuum far-infrared radiation drying on honeysuckle very well.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2010年第5期105-109,125,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
河南省杰出青年基金资助项目(084100510005)
关键词
金银花
真空干燥
远红外辐射
数学模型
Honeysuckle
Vacuum drying
Far-infrared radiation
Mathematical model
