Performance analysis of desiccant dehumidification systems driven by low-grade heat source

被引：62

作者：

Jeong, Jongsoo ^{[1
]}

Yamaguchi, Seiichi ^{[1
]}

Saito, Kiyoshi ^{[1
]}

Kawai, Sunao ^{[1
]}

机构：

[1] Waseda Univ, Sch Fundamental Sci & Engn, Dept Appl Mech & Aerosp Engn, Shinjuku Ku, Tokyo 1698555, Japan

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2011年 / 34卷 / 04期

关键词：

Desiccant wheel; Optimization; Dehumidification; Desiccant; Air conditioning; Silica gel; CONDITIONING SYSTEM;

D O I：

10.1016/j.ijrefrig.2010.10.001

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

If a desiccant dehumidification system can be driven by a heat source whose temperature is below 50 degrees C, exhaust heat from devices such as fuel cells or air conditioners can be used as its heat source, thereby saving energy. Therefore, in this study, we used a previously validated simulation model to determine the minimum heat source temperature for driving a desiccant dehumidification system. We considered four desiccant dehumidification systems that can be driven by waste heat-conventional desiccant-type systems (wheel type and batch type with only desiccant), a system with a precooler, double-stage-type systems (a type with two desiccant wheels and a four-partition desiccant wheel type), and a batch-type system with an internal heat exchanger. We found that among these systems, the last system can be driven by the lowest heated air temperature-approximately 33 degrees C-which is considerably lower than that of the conventional system. (C) 2010 Elsevier Ltd and IIR. All rights reserved.

引用

页码：928 / 945

页数：18

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