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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on Leakage Characteristics of a Scroll Compressor with alternative Refrigerants of R22

R22 대체냉매를 적용한 스크롤 압축기의 누설 특성에 관한 연구

  • Youn, Young (Digital Appliance Research Lab. LG Electronics) ;
  • Kim, Yong-Chan (Department of Mechanical Engineering, Korea University) ;
  • Min, Man-Ki (Department of Mechanical Engineering, Korea University)
  • 윤영 (LG전자 디지털어플라이언스 연구소) ;
  • 김용찬 (고려대학교 기계공학과) ;
  • 민만기 (고려대학교 기계공학과)
  • Published : 2001.05.01
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Abstract

This paper presents leakage characteristics of a scroll compressor applying alternative refrigerants of R22 such as R407c and R410a under actual operating conditions. Because leakage in a scroll compressor produce significant losses and degradation of performance, those should be clarified to design a high efficient scroll compressor with alternative refrigerants of R22. However, flank and tip leakage characteristics of a scroll compressor with alternative refrigerants are very limited in open literature. In the present study, both experimentation and modeling of the leakages in the scroll compressor were performed. As a result, it was observed that the leakages of the scroll compressor with R407c increased by 15%, and that with R410a increased by 76% as compared to the compressor applying R22 under standard load conditions due to a higher upstream pressure and a higher pressure difference between pockets.

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References

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