Performance comparisons of honeycomb-type adsorbent beds (wheels) for air dehumidification with various desiccant wall materials

被引：61
作者：
Zhang, Li-Zhi [1 ]
Fu, Huang-Xi [1 ]
Yang, Qi-Rong [1 ]
Xu, Jian-Chang [1 ]
机构：
[1] S China Univ Technol, Sch Chem & Chem Engn, Educ Minist, Key Lab Enhanced Heat Transfer & Energy Conservat, Guangzhou 510640, Guangdong, Peoples R China
来源：
ENERGY | 2014年 / 65卷
关键词：
Honeycomb adsorbent bed; Desiccant wheels; Solid desiccant; Dehumidification; Materials; Modeling; SELECTIVE WATER SORBENTS; COMPOSITE ADSORBENT; COOLING SYSTEM; MULTIPLE APPLICATIONS; ADSORPTION-ISOTHERM; RECOVERY;
D O I：
10.1016/j.energy.2013.11.042
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This study aims at comparing the performance of honeycomb type adsorbent beds (or desiccant wheels) for air dehumidification with various solid desiccant wall materials, from a viewpoint of system operation. A mathematical model is proposed and validated to predict the cyclic behaviors of the cycling beds or wheels. The influences of regeneration air temperature, process air temperature, and humidity on the coefficient of performance (COP), specific dehumidification power (SDP) and dehumidification efficiency (epsilon(d)) are predicted with various desiccant wall materials. Totally ten most commonly used desiccant materials are considered, with different adsorption and thermophysical properties. It is found that of the 10 materials, the silica gel 3A and silica gel RD perform better than other desiccants for air dehumidification under typical working conditions and driven by low grade waste heat. The results provide some insights and guidelines for the design and optimization of honeycomb type adsorption beds or desiccant wheels. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：430 / 440
页数：11
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