Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Numerical modelling and parametric study of an air-cooled desiccant coated cross-flow heat exchanger | |
Liu, Lin1,2; Zeng, Tao1; Huang, Hongyu1; Kubota, Mitsuhiro3; Kobayashi, Noriyuki3; He, Zhaohong1 ; Li, Jun3; Deng, Lisheng1,4; Li, Xing1; Feng, Yuheng4,5; Yan, Kai5
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| 2020-03-25 | |
| Source Publication | APPLIED THERMAL ENGINEERING
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| ISSN | 1359-4311 |
| Volume | 169Pages:16 |
| Corresponding Author | Huang, Hongyu(huanghy@ms.giec.ac.cn) ; He, Zhaohong(hezh@ms.giec.ac.cn) |
| Abstract | 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. |
| Keyword | Numerical modeling Solid dehumidification Cross-flow heat exchanger Desiccant coated heat exchanger Air conditioning |
| DOI | 10.1016/j.applthermaleng.2020.114901 |
| WOS Keyword | PERFORMANCE ; DEHUMIDIFICATION ; WHEEL ; MASS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| Funding Organization | Science and Technology Program of Guangzhou, China ; Shanghai Rising-Star Program, China ; China Scholarship Council |
| WOS Subject | Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics |
| WOS ID | WOS:000520949000021 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/26843 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Huang, Hongyu; He, Zhaohong |
| Affiliation | 1.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 2.Univ Chinese Acad Sci, Beijing 100049, 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.Shanghai Boiler Works Co Ltd, Shanghai 200245, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
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