| 摘要: |
| 为了研究生物材料热泵低温干燥特性，以黄粉虫为干燥材料，研究了不同干燥温度、风速和漂烫时间对黄粉虫干燥特性的影响,并选用常用的干燥模型对实验结果进行拟合。结果表明：黄粉虫热泵低温干燥可分为加速干燥段，恒速干燥段和降速干燥段。提高热泵低温干燥的风温、风速以及增加漂烫时间均有利于缩短干燥时间。采用Midilli干燥模型拟合实验数据的平均R2值最大，平均RMSE和SEE值最小，分别为0.99971、0.00559和0.00104，是描述黄粉虫热泵低温干燥的最优模型。 |
| 关键词: 热泵低温干燥 水分比 干燥速率 数学模型 |
| DOI： |
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| Drying Characteristics and Mathematical Model for Heat Pump Low Temperature Drying of Tenebrio Molitor |
| Xue Yameng,Li Baoguo |
| (Institute of Food Science and Engineering, University of Shanghai for Science and Technology) |
| Abstract: |
| In order to study the heat pump low temperature drying characteristics of biological material, the tenebrio molitors, as drying materials, was dried with heat pump under the conditions of different air temperatures, air velocities and blanching time. The drying characteristics of tenebrio molitors were studied and the drying processing was correlated by typical drying model. The results show that the drying process of tenebrio molitor could be divided into three stages, i.e., acceleration drying period, constant-rate drying period and falling rate drying period. The drying time can be shortened with the increasing of air temperature, air velocity and blanching time. An optimum model was chosen based on their coefficients of determination R2，root mean square error(RMSE) and sum of squared error(SSE). It is shonw that the Midilli model was superior to others in describing the drying curves of tenebrio molitors, and the R2, RMSE and SEE value respectively were 0.99971, 0.00559 and 0.00104. The experimental data of MR was in agreement with the predicted results of Mildilli model. |
| Key words: heat pump low temperature drying moisture ratio drying rate mathematical model |
