A FINITE-ELEMENT ANALYSIS OF FREEZE-DRYING OF A COFFEE SAMPLE

被引：17

作者：

FERGUSON, WJ

LEWIS, RW

TOMOSY, L

机构：

[1] UNIV COLL SWANSEA,DEPT CIVIL ENGN,APPL SCI BLDG,SINGLETON PK,SWANSEA SA2 8PP,W GLAM,WALES

[2] TECH UNIV BUDAPEST,DEPT CHEM & FOOD ENGN,H-1521 BUDAPEST,HUNGARY

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1993年 / 108卷 / 3-4期

关键词：

D O I：

10.1016/0045-7825(93)90009-M

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a finite element analysis of the process of freeze-drying in a coffee sample. The numerical model which has been developed was based upon the Luikov system of partial differential equations which calculates the distribution of temperature, moisture potential and pressure within a capillary-porous body. The position of the frozen/dried interface is calculated from the temperature gradients either side of the sublimation front within the coffee sample.

引用

页码：341 / 352

页数：12

共 14 条

[1]

Bonnerot R., 1974, International Journal for Numerical Methods in Engineering, V8, P811, DOI 10.1002/nme.1620080410

[2]

Crank J., 1987, FREE MOVING BOUNDARY

[3]

FERGUSON WJ, 1991, 7TH P INT C NUM METH, P973

[4]

Flosdorf E. W., 1949, FREEZE DRYING