Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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The Frost and Defrost Performances of Fin-and-Tube Exchangers with Different Surface Characteristics

표면특성이 다른 두 핀-관 열교환기의 착상 및 제상 성능

  • 신종민 (LG전자 디지털 어플라이언스 사업본부 연구소) ;
  • 최봉준 (LG전자 디지털 어플라이언스 사업본부 연구소)
  • Published : 2002.06.01
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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

References

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