Experimental comparison and analysis on silica gel and polymer coated fin-tube heat exchangers

被引：188

作者：

Ge, T. S. ^{[1
]}

Dai, Y. J. ^{[1
]}

Wang, R. Z. ^{[1
]}

Peng, Z. Z. ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China

来源：

ENERGY | 2010年 / 35卷 / 07期

基金：

中国博士后科学基金;

关键词：

Desiccant coating; Heat exchanger; Moisture removal; Thermal COP; DESICCANT DEHUMIDIFIER; BED; PERFORMANCE; WHEELS;

D O I：

10.1016/j.energy.2010.03.020

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, two desiccant-coated heat exchangers, which are actually fin-tube heat exchanging devices coated with silica gel and polymer materials respectively, are investigated experimentally. Due to the hygroscopic properties of the desiccant materials, both the sensible heat and the latent heat of the process air can be handled by using this kind of heat exchanger. An experimental setup was designed and built to test the performance of this unit. It is found that this desiccant-coated fin-tube heat exchanger well overcomes the side effect of adsorption heat which occurs in desiccant dehumidification process, and achieves good dehumidification performance under given conditions. The silica gel coated heat exchanger behaves better than the polymer one. The influences of regeneration temperature, inlet air temperature and humidity on the system performance in terms of average moisture removal rate D-avg and thermal coefficient of performance COPth were also analyzed. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2893 / 2900

页数：8

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