Experimental investigation of the heat and mass transfer between air and liquid desiccant in a cross-flow regenerator

被引：86

作者：

Liu, X. H. ^{[1
]}

Jiang, Y. ^{[1
]}

Chang, X. M. ^{[1
]}

Yi, X. Q. ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Architecture, Dept Bldg Sci, Beijing 100084, Peoples R China

来源：

RENEWABLE ENERGY | 2007年 / 32卷 / 10期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

liquid desiccant; cross-flow; regenerator; heat and mass transfer; experiment;

D O I：

10.1016/j.renene.2006.07.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The regenerator is one of the essential components in a liquid desiccant air-conditioning system, whose efficiency directly influences the system performance. A performance test-bed for a cross-flow regenerator was established in the present analysis. Celdek structured packings were used in the regenerator and LiBr aqueous solution was used as the liquid desiccant. Moisture removal rate and regenerator effectiveness are adopted to describe the mass transfer performance of the regenerator. Effects of air and desiccant inlet parameters on the regenerator performance are experimentally investigated, and performance comparisons between present cross-flow regenerator and other counter-flow configurations available in the literature are also carried out. The comparison results show that the impacts of air and desiccant inlet parameters show similar tendency with those of counter-flow regenerators. A dimensionless mass transfer correlation is proposed, which gives results in good agreement with the experimental findings. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1623 / 1636

页数：14

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