Desorption characteristics of desiccant bed for solar dehumidification/humidification air conditioning systems

被引：30
|
作者：
Hamed, AM [1 ]
机构：
[1] Mansoura Univ, Fac Engn, Dept Power Mech Engn, Mansoura, Egypt
来源：
RENEWABLE ENERGY | 2003年 / 28卷 / 13期
关键词：
air conditioning; calcium chloride; desiccant; desorption; solar energy;
D O I：
10.1016/S0960-1481(03)00075-2
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Theoretical and experimental investigation on the desorption characteristics of a packed porous bed is presented in this study. The granules of burned clay are applied as a desiccant carrier. Calcium chloride is used as the working desiccant. The theoretical model defines the transient gradient of air stream parameters (humidity and temperature) as well as desiccant concentration in the bed. In the experimental study, transient concentration gradient in the bed is evaluated by weight method. The bed is divided into seven separate layers. Air stream at low temperature and nearly constant inlet parameters are used for desorption purposes. Concentration gradient in the bed is found highly dependent on the mass transfer rate. For the specified operating conditions and stated assumptions, experimental measurements shows acceptable agreement with the analytical solution. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2099 / 2111
页数：13
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