Performance of a desiccant wheel cycle utilizing new zeolite material: Experimental investigation
Performance of a desiccant wheel cycle utilizing new zeolite material: Experimental investigation
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DOI：
10.1016/j.energy.2014.11.084
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发表时间：
2015-03
期刊：
影响因子：
9
通讯作者：
Ali Al-Alili;Y. Hwang;R. Radermacher
中科院分区：
文献类型：
--
作者：
Ali Al-Alili;Y. Hwang;R. Radermacher
在湿热地区，从空气中去除水分占空调负荷的相当大一部分。为了完成除湿，通常的做法是在低于湿空气露点温度的温度下运行空调系统。干燥剂空调通过解耦潜在负荷和显负荷，提供了满足建筑物湿度和温度要求的解决方案。本文对一种新型干燥剂的性能进行了实验研究。这种干燥剂材料具有独特的s型等温线，可以使用低温热源再生。研究了工艺气流的温度、湿度、再生温度、通风质量流量和干燥剂轮转速对循环性能的影响。ari潮湿的条件被用作基线。在所有进行的测试中，水分质量平衡保持在5%以内。结果给出了除湿率和潜在COPlat（性能系数）。结果表明，干燥剂轮与焓轮耦合时，copla值高于1。
Removal of moisture from the air represents a considerable portion of the air conditioning load in hot and humid regions. It is a common practice to run air conditioning systems at temperatures lower than the moist air dew point temperature in order to accomplish dehumidification. Desiccant air conditioners offer a solution to meet the humidity and temperature requirements of buildings via decoupling latent and sensible loads. In this work, the performance of a new desiccant material is investigated experimentally. This desiccant material has a unique S-shape isotherm and can be regenerated using a low temperature heat source. The effects of the process air stream's temperature and humidity, the regeneration temperature, the ventilation mass flow rate, and the desiccant wheel's rotational speed on the cycle performance are investigated. ARI-humid conditions are used as a baseline. The moisture mass balance is maintained within 5% for all conducted tests. The results are presented in terms of the moisture removal rate and latent COPlat(coefficient of performance). The results show a desiccant wheel's COPlathigher than unity when it is coupled with an enthalpy wheel.