期刊
ENERGY
卷 96, 期 -, 页码 176-186出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2015.12.067
关键词
Self-cooled; Desiccant coated heat exchanger; Evaporative cooler; Vacuum tube solar collector
资金
- National Natural Science Foundation of China [51206104]
- Shanghai Science and Technology Development Funds [14QA1402200]
The objective of this paper is to validate the practical performance of a novel self-cooled solid desiccant cooling system which consists of DCHE (desiccant coated heat exchanger) and regenerative evaporative cooler. In the system, part of the outlet air from the desiccant coated heat exchanger is pumped into the evaporative cooler to produce cooling water adopted in the dehumidification process. The heating water required in the regeneration process is coming from the vacuum tube solar collector system. An experimental setup is designed and built to test the performance of the new system. The average moisture removal D-ave and thermal coefficient of performance COPth are utilized as the performance indices. It is found that the SDCHE (self-cooled solid desiccant coated heat exchanger) system has better moisture removal capacity compared with the solid desiccant coated heat exchanger system, and higher thermal coefficient of performance COPth is also obtained by SDCHE system. The average moisture removal D-ave and COPth of SDCHE system are about 17% and 6% higher than that of DCHE system under similar operating condition. While other parameters remaining the same, the moisture removal D-ave and thermal coefficient of performance COPth increases significantly with increasing inlet humidity ratio. (C) 2015 Elsevier Ltd. All rights reserved.
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