Journal of Institute of Convergence Technology (융복합기술연구소 논문집)

Institute of Convergence Technology (한국교통대학교 융복합기술연구소)
권호 표지

Feasibility Study on the Frost Prevention and Delay by the Method of Alternating the function of Outdoor Coil Rows

실외기 기능 교번을 통한 착상 방지 및 지연에 대한 실증 연구

  • Jeon, Chang Duk (Department of Mechanical Engineering, Chungju National University)
  • 전창덕 (충주대학교 기계공학과)
  • Received : 2011.03.30
  • Accepted : 2011.05.07
  • Published : 2011.05.31
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Abstract

The object of this experimental study is to investigate the effect on frost prevention and delay by the method of alternating the function of outdoor coil rows under the frost conditions ($2^{\circ}C/1^{\circ}C$). The heat pump system with the new method can make frost delay time longer and eliminate frost effectively. It is withstand over 280 minutes without a conventional defrosting method. Maximum COP in case of adopting new method is 13% higher than that in case of reverse cycle defrosting method. Also in case of moving air injection duct faster, the frost delay time is lengthened and its COP is enhanced more.

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