Toward a thermodynamics and mechanics of drying processes

被引：41

作者：

Kowalski, SJ ^{[1
]}

机构：

[1] Poznan Univ Technol, Inst Chem Technol & Engn, PL-60965 Poznan, Poland

来源：

CHEMICAL ENGINEERING SCIENCE | 2000年 / 55卷 / 07期

关键词：

drying processes; mixture theory approach; dried material deformation; drying-induced stresses; diversified constituent temperatures; system of differential equations; numerical example;

D O I：

10.1016/S0009-2509(99)00400-5

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The paper is concerned with deformations and drying-induced stresses of moistened capillary-porous medium during intensive drying. A non-linear theory of drying is constructed based on the concept of mixture theory and the thermodynamics of irreversible processes. The porous material is considered for a "container" interacting with the mixture of liquid and gas filling the pores. The coupled system of differential equations describing the mechanical behaviour of moist material during drying as well as the distributions of temperature and moisture content is derived in the paper. Diversified constituent temperatures are considered, what makes possible to apply the presented model to intensive drying processes. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1289 / 1304

页数：16

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