Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
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Influence of Combustor Pressure on Combustion Characteristics and Local Flame Reaction in the Partially Premixed Flames with $CH_4$, $C_2H_4$ and $C_3H_8$

부분 예혼합 화염의 연소실 압력이 연료별(메탄, 에틸렌, 프로판) 연소특성과 국소 화염 반응에 미치는 영향

  • 김종률 (부산대학교 대학원 기계공학과) ;
  • 손제하 (부산대학교 대학원 기계공학과) ;
  • 노영구 ((주)일성 기술연구소) ;
  • 김윤동 (국방기술품질원) ;
  • 최경민 (부산대학교 기계공학부) ;
  • 김덕줄 (부산대학교 기계공학부)
  • Received : 2010.09.28
  • Accepted : 2010.12.22
  • Published : 2010.12.31
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Abstract

An experimental study was conducted for three different fuels($CH_4$, $C_2H_4$ and $C_3H_8$) to investigate the combustion characteristics and the local reaction intensity with combustor pressure(-30kpa~30kpa). Regardless of fuel composition, EINOx decreased with reducing pressure decreased. Structure and combustion characteristics were also largely affected by the combustor pressure. In addition, reaction intensity in terms of the changing combustor pressure and equivalence ratio was investigated. Combustion reaction in higher than atmospheric pressure was very active than the lower combustor pressure. When the combustor pressure is lower than the atmospheric pressure, the overall reactivity is noticeably enhanced due to the elevated diffusion process of unburned mixture. It was found that the combustion characteristics of the methane and propane flames are considerably influenced by the pressure while those of ethylene flame are less sensitive to the combustor pressure.

Keywords

References

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