Numerical modelling and parametric study of an air-cooled desiccant coated cross-flow heat exchanger

doi:10.1016/j.applthermaleng.2020.114901

	Numerical modelling and parametric study of an air-cooled desiccant coated cross-flow heat exchanger
	Liu, Lin 2,5; Zeng, Tao 2; Huang, Hongyu 2; Kubota, Mitsuhiro 3; Kobayashi, Noriyuki 3; He, Zhaohong 2; Li, Jun 3; Deng, Lisheng 2,4; Li, Xing 2; Feng, Yuheng 1,4
刊名	APPLIED THERMAL ENGINEERING
	2020-03-25
卷号	169 页码:16
关键词	Numerical modeling Solid dehumidification Cross-flow heat exchanger Desiccant coated heat exchanger Air conditioning
ISSN号	1359-4311
DOI	10.1016/j.applthermaleng.2020.114901
通讯作者	Huang, Hongyu(huanghy@ms.giec.ac.cn) ; He, Zhaohong(hezh@ms.giec.ac.cn)
英文摘要	Air-cooled desiccant coated cross-flow heat exchanger (DCCFHE) system provides a simple and effective approach to improve dehumidification performance by using cooling air to remove adsorption heat during adsorption process. In this study, a novel numerical model validated by experimental data was established to predict the performance of a conventional silica gel DCCFHE system. The fin efficiency, as a variable due to the release of adsorption heat, was taken into account in the model. Parametric study for various air velocity and structural parameters was conducted to reveal their effects on the dehumidification performance. Results show that the smaller process air velocity is conducive to improve dehumidification performance, but the performance increases with the increase in cooling air velocity. Compared to the operation case without cooling air, the moisture removal capacity and dehumidification coefficient of performance can obtain about 35% improvement at the cooling air velocity of 1 m/s. The results also indicate that thicker desiccant layer thickness and smaller fin pitch improve moisture removal capacity and dehumidification coefficient of performance but result in greater total pressure drop Delta P, while the performance is insensible to fin thickness and fin height. Besides, effect of heat transfer performance in dehumidification and cooling sides on dehumidification performance was also analyzed. It was found that the heat transfer performance in dehumidification side is the dominant factor affecting dehumidification performance.
资助项目	Science and Technology Program of Guangzhou, China[2016201604030014] ; Shanghai Rising-Star Program, China[17QB1400900] ; Shanghai Rising-Star Program, China[17QC1401000] ; China Scholarship Council[CSC.201804910599]
WOS关键词	PERFORMANCE ; DEHUMIDIFICATION ; WHEEL ; MASS
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000520949000021
资助机构	Science and Technology Program of Guangzhou, China ; Shanghai Rising-Star Program, China ; China Scholarship Council
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26842]
专题	中国科学院广州能源研究所
通讯作者	Huang, Hongyu; He, Zhaohong
作者单位	1.Shanghai Boiler Works Co Ltd, Shanghai 200245, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China 3.Nagoya Univ, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan 4.Tongji Univ, Thermal & Environm Engn Inst, 1239 Siping Rd, Shanghai 200092, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Lin,Zeng, Tao,Huang, Hongyu,et al. Numerical modelling and parametric study of an air-cooled desiccant coated cross-flow heat exchanger[J]. APPLIED THERMAL ENGINEERING,2020,169:16.
APA	Liu, Lin.,Zeng, Tao.,Huang, Hongyu.,Kubota, Mitsuhiro.,Kobayashi, Noriyuki.,...&Yan, Kai.(2020).Numerical modelling and parametric study of an air-cooled desiccant coated cross-flow heat exchanger.APPLIED THERMAL ENGINEERING,169,16.
MLA	Liu, Lin,et al."Numerical modelling and parametric study of an air-cooled desiccant coated cross-flow heat exchanger".APPLIED THERMAL ENGINEERING 169(2020):16.