Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Nano-Soot Particle Formation in Ethene/Air Inverse Diffusion Flame

에틸렌/공기 역 확산화염에서의 나노 매연 입자 생성

  • 이의주 (건설기술연구원 화재 및 설비 연구부) ;
  • 신현준 (한국과학기술원 화재 및 설비 연구부) ;
  • 오광철 (한국과학기술원 기계공학과) ;
  • 신현동 (한국과학기술원 기계공학과)
  • Published : 2004.09.01
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Abstract

Experimental measurements of flame structure and soot characteristics were performed fur ethene inverse diffusion flames (IDF). IDF has been considered as the excellent flow field to study the incipient soot because soot particle do not experience the oxidation process. In this study, LIF image clarified the reaction zone of IDF with OH signal and PAH distribution. laser light scattering technique also identified the being of soot particle. To address the degree of soot maturing, C/H ratio and morphology of soot sample were investigated. From these measurements, the effect of flow residence time and temperature on soot inception could be suggested, and more details on soot characteristic in the IDF was determined according to fuel dilution and flame condition. The fuel dilution results in a decrease of temperature and enhancement of residence time, but the critical dilution mole fraction is existed for temperature not to effect on soot growth. Also, the soot inception evolved on the specific temperature and its morphology are independent of the fuel dilution ratio of fuel.

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References

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