An investigation of heat and mass transfer between air and desiccant film in an inclined parallel and counter flow channels

被引：49

作者：

Ali, A

Vafai, K

机构：

[1] Univ Calif Riverside, Dept Mech Engn, Riverside, CA 92521 USA

[2] Ohio State Univ, Dept Mech Engn, Columbus, OH 43210 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2004年 / 47卷 / 8-9期

关键词：

inclined parallel flow; inclined counter flow; dehumidification; regeneration;

D O I：

10.1016/j.ijheatmasstransfer.2003.10.008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Heat and mass transfer between air and falling desiccant film is investigated for inclined parallel and counter flow configurations. Two different configurations are proposed and parametrically analyzed. Effect of inclination angle is examined to study enhancements in dehumidification and cooling processes of the air and regeneration of liquid desiccant in terms of pertinent parameters. Cu-ultrafine particles are also added to the desiccant film to investigate the enhancement in heat and mass transfer between the air and the desiccant film. The pertinent parameters are air and desiccant Reynolds numbers, inlet conditions for both air and liquid desiccant, Cu-ultrafine particles volume fraction, and thermal dispersion. It is shown that inclination angle plays a significant role in enhancing the dehumidification, cooling, and regeneration processes. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1745 / 1760

页数：16

共 20 条

[1] Evaluation of heat and mass transfer coefficients in a gauze-type structured packing air dehumidifier operating with liquid desiccant [J].