Models for drying kinetics based on drying curves of slabs

被引:73
作者
Coumans, WJ [1 ]
机构
[1] Eindhoven Univ Technol, Lab Separat Proc & Transport Phenomena, NL-5600 MB Eindhoven, Netherlands
关键词
drying curves; drying kinetics; short cut methods; diffusion coefficient;
D O I
10.1016/S0255-2701(99)00084-7
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
An overview of approximate models for the drying kinetics is given, including lumped diffusion models, retreating front models and the characteristic drying curve model. To keep this overview orderly, only drying bodies with a slab geometry and a constant temperature are considered. The presented models enable-in a relatively simple way-the characterization and description of the drying behavior. All model parameters are derived from drying curves of slabs. The methods given relate to porous and non-porous materials. An attempt is being made to give a consistent presentation of these methods coming from different literature sources, by using the same definitions, nomenclature and symbols for the model parameters involved. For a correct analysis of the practical usefulness of the given methods more experimental data are needed. Some additional conclusions and recommendations an given. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:53 / 68
页数:16
相关论文
共 38 条
[1]  
[Anonymous], TROCKNUNGSTECHNIK
[2]  
Coumans W. J., 1988, In 'Preconcentration and drying of food materials', edited by Bruin, S. Conference. Eindhoven, Netherlands. 5-6 Nov. 1987. 1000 AE Amsterdam, Netherlands
[3]  
Elsevier Science Publishers BV. ISBN 0-444-42968-9 [see FSTA (1989) 21 5E22]., P163
[4]  
COUMANS WJ, THESIS EINDHOVEN U T
[5]  
COUTURE F, 1995, THESIS U BORDEAUX
[6]  
Crank J., 1990, MATH DIFFUSION
[7]  
HAERTLING M, 1979, VERFAHRENSTECHNIK, V13, P923
[8]  
HAERTLING M, 1978, THESIS KARLSRUHE
[9]  
Keey R.B., 1972, DRYING PRINCIPLES PR
[10]   CHARACTERISTIC DRYING CURVE [J].
KEEY, RB ;
SUZUKI, M .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1974, 17 (12) :1455-1464