Dynamic and microscopic simulation of the counter-current flow in a liquid desiccant dehumidifier

被引：50

作者：

Luo, Yimo ^{[1
]}

Yang, Hongxing ^{[1
]}

Lu, Lin ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Bldg Serv Engn, Renewable Energy Res Grp, Hong Kong, Hong Kong, Peoples R China

来源：

APPLIED ENERGY | 2014年 / 136卷

关键词：

Counter-current flow; Dehumidifier; Simulation; MASS-TRANSFER; STRUCTURED PACKING; SIMULTANEOUS HEAT; PERFORMANCE; CFD; ABSORPTION; MODELS; SYSTEM; FILMS;

D O I：

10.1016/j.apenergy.2014.06.023

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：

The optimal design and operation of a liquid desiccant dehumidifier needs the understanding of the flow mechanism. However, the study in this aspect is still limited. In the present work, a model has been established on the basis of computational fluent dynamics (CFD) software. With the model, the counter-current gas-liquid flow process is evaluated microscopically and dynamically. The impacts of various parameters on the velocity profiles, the minimum liquid flow rate for wetting the whole surface, interfacial area, and film thickness are analyzed. The critical advantage of the model lies in that it can predict the dynamic and local performance of the dehumidifier microscopically. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：1018 / 1025

页数：8

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