Calculation of the effective diffusion coefficients by applying a quasi-stationary equation for drying kinetics

被引：31

作者：

Efremov, G

Kudra, T

机构：

[1] CANMET Energy Technol Ctr Varennes, Varennes, PQ J3X 1S6, Canada

[2] Moscow Open State Univ, Dept Math Modeling, Moscow, Russia

来源：

DRYING TECHNOLOGY | 2004年 / 22卷 / 10期

关键词：

celery; fick law; reduced moisture content; tobacco; wheat;

D O I：

10.1081/DRT-200039993

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A modified quasi-stationary equation for drying kinetics has been used to develop a method allowing calculation of the effective diffusion coefficient and tracing its variation with drying time. The method has been validated with experimental drying kinetics for wheat dried in a two-dimensional spouted bed, and with literature data on drying of tobacco lamina in a fixed bed, and on sliced celery in a pulsed fluid bed.

引用

页码：2273 / 2279

页数：7

共 7 条

[1]

Crank J., 1979, MATH DIFFUSION

[2]

Devahastin S., 2000, MUJUMDARS PRACTICAL

[3]

EFREMOV GI, 2002, P IDS 2002 BEIJ CHIN, VA, P563

[4] Drying in a pulsed-fluid bed with relocated gas stream [J].