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The Frost and Defrost Performances of Fin-and-Tube Exchangers with Different Surface Characteristics  

신종민 (LG전자 디지털 어플라이언스 사업본부 연구소)
최봉준 (LG전자 디지털 어플라이언스 사업본부 연구소)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.14, no.6, 2002 , pp. 525-531 More about this Journal
Abstract
The effects of different surface hydrophilicity on frosting and defrosting characteristic were experimentally investigated. Mass of frost and water hold-up was measured. Results showed that no significant difference in the frost mass was found between the two different surfaces while the water hold-up of heat exchanger court be reduced by the enhancement of surface hydrophilicity. Also, the defrosting efficiency m hydrophilic surface was improved by 76%. It was expected that hydrophilic heat exchanger could provide the improvements in both thermal-hydraulic performances and system reliability during frost/defrost operating in refrigeration systems.
Keywords
Fin-and-tube heat exchanger; Surface characteristics; Frost; Defrost; Hydrophilicity; Contact angle;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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