期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 108, 期 -, 页码 1335-1339出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2017.01.043
关键词
Frosting; Heat exchanger; Inclination angle; Drainage
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2016R1A2B4012954]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [20164010200860]
- National Research Foundation of Korea [2016R1A2B4012954] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We carried out experiments of repeated frosting/defrosting cycles while varying the heat exchanger inclination angles (0 degrees, 15 degrees, 30 degrees, and 45 degrees) of a louvered fin heat exchanger and analyzed the variations in thermal performance, residual water, and defrosting efficiency according to the heat exchanger inclination angle. For larger inclination angles, the heat transfer rate and pressure drop varied less during repeated cycling. The use of high inclination angles improved the drainage performance of the louvered fin heat exchanger and reduced the mass of its residual water. The defrosting efficiency varied less during repeated cycling for high inclination angles than for low inclination angles. (C) 2017 Elsevier Ltd. All rights reserved.
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