Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Study on the Pressure Variation in a Chamber Caused by Pulsation Pressure

맥동압을 가지는 챔버내의 압력변화에 관한 연구

  • Yi, Chung-Seub (Eco-Friendly Heat & Cold Energy Mechanical Research Team, Gyeongsang National University) ;
  • Shim, Kyu-Jin (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Akbar, Wanda Ali (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Chung, Han-Shik (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Jeong, Hyo-Min (School of Mechanical and Aerospace Engineering, Gyeongsang National University)
  • 이중섭 (경상대학교 친환경냉열기술연구사업팀) ;
  • 심규진 (경상대학교 정밀기계공학과 대학원) ;
  • ;
  • 정한식 (경상대학교 기계항공공학부, 해양산업연구소) ;
  • 정효민 (경상대학교 기계항공공학부, 해양산업연구소)
  • Published : 2007.07.01
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Abstract

Experimental results of pulsating pressure behavior inside a chamber have been confirmed by computational work. Inside-cylinder pressure shows unstable condition at low rpm. This is caused by plate-type suction valve. It has effect up to inlet of the chamber. But trembling phenomenon is reduced as the pressure is enlarged by increasing the rpm. Result comparison between experimental and numerical analysis shows pulsation reduction is affected by the chamber. We can confirm that compressible effect of the working flow is shown at chamber inlet by increasing rpm. On the other side, this effect is declined at chamber outlet by increasing rpm. It means outlet pressure is going on balance with atmosphere pressure. Buffer plate-type chamber has efficiency of pulsation flow reduction.

Keywords

References

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