Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Reduction of Leakage through Labyrinth Seal in a Steam Turbine by Modification of the Teeth Shape

증기터빈 래비린스 실의 형상 개선을 통한 누설량 저감에 관한 연구

  • 안중현 (한양대학교 대학원 기계공학과) ;
  • 허진혁 (한양대학교 대학원 기계공학과) ;
  • 문승재 (한양대학교 기계공학부) ;
  • 이재헌 (한양대학교 기계공학부) ;
  • 유호선 (숭실대학교 기계공학과)
  • Published : 2009.06.25
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Abstract

In this study, the numerical study has carried out to analyze the leakage in a steam turbine labyrinth seal. We modified tooth shape of the labyrinth seal and finds out difference of leakage in this study. Original model is straight labyrinth seal and its modified model is slant labyrinth seal. The numerical analyses are implemented on two models. The numerical results show that each leakage of tooth shape are found 0.4781 kg/s and 0.4485 kg/s, respectively. Slant labyrinth seal seals in a steam better than straight labyrinth seal. Since, actual clearance of the stream function in the slant model is smaller than the straight model.

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