CFD and Experimental Study of Gas Flow Inside the Steel Pipe Fitted in Reciprocating Hydrogen Compression System

왕복동식 압축시스템에 연결된 파이프 내부의 유동특성에 관한 CFD와 실험

  • Rahman, Mohammad-Shiddiqur (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Lee, Gyeong-Hwan (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Lee, Kwang-Sung (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Chung, Han-Shik (Department of Mechanical and Precision Engineering, Gyeongsang National University, Institute of Marine Industry) ;
  • Jeong, Hyo-Min (Department of Mechanical and Precision Engineering, Gyeongsang National University, Institute of Marine Industry)
  • 라흐만 (경상대학교 대학원 정밀기계공학과) ;
  • 이경환 (경상대학교 대학원 정밀기계공학과) ;
  • 이광성 (경상대학교 대학원 정밀기계공학과) ;
  • 정한식 (경상대학교 정밀기계공학과 해양산업연구소) ;
  • 정효민 (경상대학교 정밀기계공학과 해양산업연구소)
  • Published : 2009.06.25

Abstract

Renewability and pollutant free energy source makes hydrogen energy popular rapidly. Hydrogen gas pressure which is after passing through reciprocating compressor part has high pulsation wave form. A unit, snubber is used as compressor components to reduce the harmful pulsation waveform and to remove the impurities in the hydrogen gas. An experiment has been conducted to investigate the pulsation reduction performance of a steel pipe used in snubber system. The amplitude of pressure reduction were varied from $0.054{\sim}0.321\;kPa$ for 10 hz to 60 hz motor speed. Compressor operation by motor with 10 to 60 hz were resulted in reduction of pressure pulsation from 16.415% to 35.151%. Pressure losses were varied from $0.001%{\sim}0.759%$, and pressure drop per centimeter of the steel pipe were varied from $0.0160{\sim}16.03\;Pa$.

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