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

The Korean Society of Mechanical Engineers (대한기계학회)
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Soot and PAH Formation in Counterflow Diffusion Flames of Ethylene-Propane

에틸렌/프로판 대향류 확산화염에서 PAH 와 매연의 생성특성

  • 윤승석 (서울대학교 대학원 기계항공공학부) ;
  • 이상민 (서울대학교 대학원 기계항공공학부) ;
  • 황준영 (서울대학교 대학원 기계항공공학부) ;
  • 정석호 (서울대학교 기계항공공학부)
  • Published : 2002.06.01
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Abstract

Sooting characteristics of counterflow ethylene/propane mixture flames have been experimentally studied to investigate the fuel structure effect on PHM and soot formation. Laser-induced incandescene and laser-induced fluorescene techniques were employed to measure soot volume fraction and polycyclic aromatic hydrocarbon (PAH) concentration, respectively. Importance of $C_{3-}$species on PAH growth as well as the H-abstraction-C$_2$ $H_2$addition (HACA) mechanism has been emphasized, considering that PAH growth rate is greater for with mixed fuel than fer pure fuel flames. It was also confirmed that HACA pathways are the dominant soot growth mechanism. A new PAH growth model including both $C_{2-}$ and $C_{3-}$growth mechanisms is proposed based on the experimental results.

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References

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