THE INFLUENCE OF SHRINKAGE ON DRYING BEHAVIOR OF CLAYS

被引：12

作者：

KETELAARS, AAJ

KAASSCHIETER, EF

COUMANS, WJ

KERKHOF, PJAM

机构：

[1] EINDHOVEN UNIV TECHNOL,DEPT CHEM ENGN,5600 MB EINDHOVEN,NETHERLANDS

[2] EINDHOVEN UNIV TECHNOL,DEPT MATH & COMP SCI,5600 MB EINDHOVEN,NETHERLANDS

来源：

DRYING TECHNOLOGY | 1994年 / 12卷 / 07期

关键词：

DIFFUSION COEFFICIENT; DRYING CURVES; ISOTROPIC SHRINKAGE; SIMULATIONS; UNIDIRECTIONAL SHRINKAGE;

D O I：

10.1080/07373939408962187

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A correct description of the evolution of moisture concentration profiles in shrinking materials is complicated by the influence of shrinkage on mass transfer. Shrinkage has to be accounted for in the diffusion equation. Simulations have been performed for three types of shrinkage: isotropic, unidirectional and no shrinkage. Since many materials show isotropic shrinkage behaviour, unidirectional and no shrinkage should be considered as approximations of the actual material behaviour. Various numerical simulations show that for days the influence of the type of shrinkage on drying curves is small.

引用

页码：1561 / 1574

页数：14