The article gives optimize control aimed function in vacuum sublimationdrying process, optimize control method and the introduction of ZDG-40 freeze drying equipment heating system.
介绍了真空升华干燥过程优化控制目标函数及其优化控制方法，ZDG - 40冷冻干燥机加热系统。
2
The freeze drying model on the basis of heat transfer processes for tomatoes subject to radiation boundary conditions was founded to predict the time of sublimation dehydration.
认为番茄冻干过程为传热控制，建立了辐射边界的准稳态模型，利用该模型可以较准确的预测升华干燥的时间。
3
With the help of the orthogonal experimentation we analyse the academic number of the Pre-freezing and sublimation-drying time, measure co-crystal temperature and the drying time.