Computational fluid dynamics for multistage adsorption dryer design

被引：10

作者：

Djaeni, M. ^{[1
]}

Bartels, P. V. ^{[1
]}

Sanders, J. P. M. ^{[1
]}

van Straten, G. ^{[1
]}

van Boxtel, A. J. B. ^{[1
]}

机构：

[1] Univ Wageningen & Res Ctr, Dept Agrtechnol & Food Sci, Syst & Control Grp, NL-6700 AA Wageningen, Netherlands

来源：

DRYING TECHNOLOGY | 2008年 / 26卷 / 04期

关键词：

adsorbent drying; CFD model; moving bed dryer; regeneration; tarragon; thermal efficiency; zeolite;

D O I：

10.1080/07373930801929532

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Two-dimensional computational fluid dynamics calculations for multistage zeolite drying are performed for two dryer configurations (1) a continuous moving bed zeolite dryer and (2) a discrete bed zeolite dryer. The calculations concern drying of tarragon (Artemisia dracunculus L.) as an herbal product. The results reveal the profiles of water, vapor, and temperature in dryer, adsorber, and regenerator in the flow directions. The thermal efficiency ranges between 80 and 90% and is close to overall model calculations. The performance of continuous moving bed zeolite dryer is the best. Residence time of air, product, and zeolite are in accordance to other drying systems.

引用

页码：487 / 502

页数：16

共 19 条

[1] Effects of capillary condensation on adsorption and thermal desorption dynamics of water in zeolite 13X and layered beds [J].