A new model for fluid bed drying

被引：33

作者：

Groenewold, H

Tsotsas, E

机构：

[1] Institute of Process Engineering, Otto-von-Guericke-University, Magdeburg

来源：

DRYING TECHNOLOGY | 1997年 / 15卷 / 6-8期

关键词：

backmixing; drying; fluidization; mass transfer;

D O I：

10.1080/07373939708917318

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A new model is proposed which calculates fluid bed drying curves without any adaptation of the Sherwood number between particles and gas. Even the fine-structure of experimental data, i.e. the influence of bed height and gas flow rate, is predicted reliably. This is achieved by considering backmixing of the suspension gas in the kinetic parameter and not in the driving potential. A traditional derivation with reduced driving potential fails in the comparison with experimental results.

引用

页码：1687 / 1698

页数：12

共 9 条

[1]

DAVISON JF, 1985, FLUIDIZATION

[2] HEAT AND MASS-TRANSFER IN PACKED-BEDS [J].