Parabolic problem of moving boundary with relaxation of internal heat source capacity in vacuum freeze drying

被引：5
|
作者：
Nastaj, JF [1 ]
机构：
[1] Tech Univ Szczecin, Dept Chem Engn & Environm Protect Proc, PL-71065 Szczecin, Poland
来源：
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2001年 / 28卷 / 08期
关键词：
D O I：
10.1016/S0735-1933(01)00311-6
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A novel parabolic plane moving boundary problem (PPLMBP) with heat generation and an unknown temperature and vapor concentration at the moving sublimation front was formulated. It is adequate to vacuum freeze drying of biomaterials, pharmaceuticals etc. at combined radiative-microwave heating. A model takes into account the relaxation of internal heat generation caused by microwave heating. Numerical model equations in the plane geometry were solved by the MacCormack predictor-corrector method. The influence of relaxation time of internal heat source tau (s) on drying kinetics has been discussed. (C) 2001 Elsevier Science Ltd.
引用
收藏
页码：1079 / 1090
页数：12
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