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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Characteristics of Flank and Tip Seal Leakage in a Scroll Compressor for Air-Conditioners

공기조화기용 스크롤 압축기의 플랭크 및 팁실 누설특성

  • 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 디지털어플라언스 연구소) ;
  • 김용찬 (고려대학교 기계공학과) ;
  • 민만기 (고려대학교 기계공학과)
  • Published : 2001.02.01
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Abstract

This paper presents the characteristics of flank and tip seal leakage in a scroll compressor for air-conditioners with R-22 under actual operating conditions. It is well known that the leakage has significant effect on the performance of the scroll compressor. Experiments were performed by using indirect method for measuring mass flow rate passing through flank and tip seal under actual operating conditions, In addition, an analytical model for tip seal leakage was developed to investigate tangential and radial leakage observed at grooves and contact points of tip seals. For low oil concentration, theoretical results were compared with experimental data to verify the analytical model. As a result, leakages through flank and tip seal parts were evaluated as afunction of pressure ratio, orbiting angle, discharge pressure, tip clearance, and leakage point. It was also found that the tip seal leakage was considerable even though the tip seal provided adequate sealing effect.

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References

  1. Proc. International Compressor Engineerinf Conference at Purdue An analysis of losses in scroll compressor Hayano;M;Sakata;H.;Nagatomo;S.;Murasaki;H.
  2. Proc. International Compressor Engineering Conference at Purdue Refrigerant leakage flow evaluation for scroll compressor Ishii, N.;Bird, K.;Sano, K.;Oono, M.;Iwamura, S.;Otokura, T.
  3. Proc. International Compressor Engineering Conference at Purdue A scroll compressor with sealing means and low pressure side shell Inaba, T.;Sugihara, M.;Nakamura, T.;Kimura, T.;Morishita, E.
  4. Proc.International Compressor Engineering Conference at Purdue A computer model for scroll compressors Caillat;J.L.;Ni;S.;Daniels;M.
  5. International Compressor Engineering Conference at Purdue Leakage calculation through clearances Huang, Y.
  6. Proc. of SAREK summer annual conference Leakage characteristics of tip seal in scroll compressors for air conditioners Youn;Y.;Cho.N.K;Lee;B.C.;Kim;M.K.;Min;M.K.
  7. Proc. of SAREK winter annual conference A study on the characteristics of tangential leakage in scroll compressors for air conditioners Cho, N. K.;Youn, Y.;Lee, B. C.;Kim, M, K.;Min, M. K.
  8. A study on the characteristics of leakage and performance in scroll compressors for air conditioners Youn, Y.
  9. Korean Journal of Air-Conditioning and Refrigeration Engineering v.12 no.7 Performance analysis on the valiable speed scroll compressor with opering condituins Park;H.H.;Park;Y.C.;Kim;Y.C.
  10. Proc. of SAREK summer annual conference A study on the effect of refrigerant oil on the performance of scroll compressor Chung, Y. G.;Park, K. W.;Pak, H. Y.
  11. Proc. of KSME spring annual conference;Ph.D.Thesis v.12 no.7 Computer simulation for performance anaysis of a scroll compressor Lee;G.H.;Kim;H.J.