Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
권호 표지

Experimental Study on Effects of Syngas Addition in Flame Propagation and Stability of DME-Air Premixed Flames

디메틸에테르-공기 예혼합화염의 화염전파와 화염안정성에 있어서 합성가스의 첨가효과에 관한 실험적 연구

  • 송원식 (부경대학교 기계공학과) ;
  • 박정 (부경대학교 기계공학과) ;
  • 권오붕 (부경대학교 기계공학과) ;
  • 윤진한 (한국기계연구원 그린환경기계연구본부) ;
  • 길상인 (한국기계연구원 그린환경기계연구본부)
  • Received : 2012.12.06
  • Accepted : 2012.12.07
  • Published : 2012.12.30
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Abstract

The present study was conducted to investigate the flame instability(evaluated by Markstein length and cellular instability) and laminar burning velocity in a constant volume combustion chamber at room temperature and elevated pressure up to 0.3 MPa to suggest the possibility of utilizing mixtures of syngas added DME-air premixed flames in internal combustion engines. The experimentally measured laminar burning velocities were compared to predictions calculated the PREMIX code with Zhao reaction mechanism. Discussions were made on effects of syngas addition into DME-Air premixed flames through evaluating laminar burning velocity, Markstein length, and cellular instability. Particular concerns are focused on cellular instability caused by hydrodynamic instability and diffusive-thermal instability.

Keywords

References

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