Development of 2-Stage Economizer System Using the Non-Azeotropic Mixtures.

비공비 혼합 냉매를 이용한 2단 이코노마이져 시스템 개발

  • 염한길 (한국기계연구원 열유체시스템연구부) ;
  • 김욱중 (한국기계연구원 열유체시스템연구부) ;
  • 이성진 (한국기계연구원 열유체시스템연구부) ;
  • 홍용주 (한국기계연구원 열유체시스템연구부)
  • Published : 1995.12.31

Abstract

For improving performance of heat pump system, researcher has adapted 2-stage economizer cycle and developed a high-efficiency screw compressor, new working medium(non-azeotropic mixed refrigerant) and counterflow heat exchangers operating with a small temperature difference. Target of this study is development of high performance heat pump system with the 2-stage economizer system using the non-azeotropic mixed refrigerant. For the purpose of excuting target, we constucted computer simulation programs, compared and examed various types of cycle and non-azeotropic mixture. Based on the results from computer simulation we selected optimum mixtures and reflected design and production process of performance test equipment with the 1-stage econmizer system. In order to accomplish the final target, design and production of the 2-stage economizer system, we performed pilot test using the 1-stage economizer performance test system and finally design and production of the 2-stage economizer system.

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