한국마린엔지니어링학회:학술대회논문집 (Proceedings of the Korean Society of Marine Engineers Conference)

한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
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수평관내 HC계 냉매의 증발 압력강하 특성

Characteristics on Evaporating Pressure Drop of HCs Refrigerants inside a horizontal tube

  • 최준혁 (부경대학교 대학원 냉동공조공학과) ;
  • 이호생 (부경대학교 대학원 냉동공조공학과) ;
  • 김재돌 (동명대학교 환경설비공학과) ;
  • 윤정인 (부경대학교 냉동공조공학과)
  • 발행 : 2006.06.22
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초록

Chracteristics on evaporating pressure drop of HCs refrigerants inside a horizontal tube were studied experimentally. Experimental results were presented for pressure drops of hydrocarbon refrigerants R-290, R-600a, R-1270 and HCFC refrigerant R-22 inside a horizontal double pipe heat exchanger. Three tubes with a tube diameter of 12.70mm, 9.52mm and 6.35mm were used for this study. Hydrocarbon refrigerants showed higher evaporating pressure drop than that of R-22 in all tubes. The highest pressure drop was founded in R-600a. The highest evaporating perssure drop of all refrigerants was shown in a tube diameter of 6.35mm with same mass flux. The results can be used as the basic data for the design of heat exchanger using hydrocarbon refrigerants as an alternatives.

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