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Numerical Analysis on the Working Fluid Flow of Suction-passage for Reciprocating Compressor

왕복동식 수소압축기의 흡입통로내 작동유체 유동해석

  • 이경환 (경상대학교 대학원 정밀기계공학과) ;
  • 라흐만 (경상대학교 대학원 정밀기계공학과) ;
  • 심규진 ;
  • 정효민 (경상대학교 정밀기계공학과, 해양산업연구소) ;
  • 정한식 (경상대학교 정밀기계공학과, 해양산업연구소)
  • Published : 2008.11.30

Abstract

Numerical analysis information will be very useful to improve fluid system. General information about an internal gas flow is presented by numerical analysis approach. Relating with hydrogen compressing system, which have an important role in hydrogen energy utilization, this should be a useful tool to observe the flow quickly and clearly. Flow characteristic analysis, including pressure and turbulence kinetic energy distribution of hydrogen gas coming to the cylinder of a reciprocating compressor are presented in this paper. Suction-passage model is designed based on real model of hydrogen compressor. Pressure boundary conditions are applied considering the real condition of operating system. The result shows pressure and turbulence kinetic energy are not distributed uniformly along the passage of the Hydrogen system. Path line or particles tracks help to demonstrate flow characteristics inside the passage. The existence of vortices and flow direction can be precisely predicted. Based on this result, the design improvement, such as reducing the varying flow parameters and flow reorientation should be done. Consequently, development of the better hydrogen compressing system will be achieved.

Keywords

References

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