한국안전학회지 (Journal of the Korean Society of Safety)

  • 제25권6호
  • /
  • Pages.9-13
  • /
  • 2010
  • /
  • 1738-3803(pISSN)
  • /
  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
권호 표지

이산화탄소가 첨가된 제트확산화염 후류에서의 매연 특성

The Characteristics of Soot at the Post-Flame Region in Jet Diffusion Flames Added Carbon Dioxide

  • Ji, Jung-Hoon (School of Safety Engineering, Pukyong National University) ;
  • Lee, Eui-Ju (School of Safety Engineering, Pukyong National University)
  • 투고 : 2010.06.24
  • 심사 : 2010.12.10
  • 발행 : 2010.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

An experimental study for characteristics of soot were conducted at the post-flame region in jet diffusion flames, where carbon dioxide was used as additives in oxidizer stream. Light-extinction method was performed using He-Ne laser with wave length at 632.8nm for the measurement of relative soot density and soot volume fraction with dimensionless extinction coefficient, $K_e$ and mass specific extinction coefficient, ${\sigma}_s$. To increase of resolution, laser light was modified for sheet-form using concave, convex lenses and slit. C/H ratio was introduced for quantitative analysis of soot growth which is expressed by carbonization and dehydrogen. Also transmission electron microscopy(TEM) was used for observation of morphological shape. The results show that the relative soot density in the post-flame region was lower when carbon dioxide was added in oxidizer stream because of reduction of flame temperature.

키워드

참고문헌

  1. T.R. Barfknecht, "Toxicology of Soot", Progress in Energy and Combustion Science, Vol. 9, pp. 199-237, 1983. https://doi.org/10.1016/0360-1285(83)90002-3
  2. H.G. Neumann, "Health Risk of Combustion Products; Toxicological Considerations", Chemosphere, Vol. 42, pp. 473-479, 2001. https://doi.org/10.1016/S0045-6535(00)00219-8
  3. "Toxicological Profile for Polycyclic Aromatic Hydrocarbons", Report of Agency for Toxic Substances and Disease Registry in U.S. Department of Health and Human Services.
  4. Bockhorn H. Soot Formation in Combustion, Mechanism and Models. Spring Verlag; Berlin, 1994.
  5. I. Glassman, "Soot Formation in Combustion Process", Proc. Comb. Inst., Vol. 22, pp. 295-311, 1998.
  6. I.M. Kennedy, "Models of Soot Formation and Oxidization", Progress in Energy and Combustion Science, Vol. 23, pp. 95-132, 1997. https://doi.org/10.1016/S0360-1285(97)00007-5
  7. J.B. Howard and W.J. Kausch, "Soot Control by Fuel Additives", Progress in Energy and Combustion Science, Vol.6, pp. 263-276, 1980. https://doi.org/10.1016/0360-1285(80)90018-0
  8. A.V. Menon, S.Y. Lee, M.J. Linevsky, T.A. Litzinger and R.J. Santoro, "Addition of $NO_2$ to a Laminar Premixed Ethylene-Air Flame; Effect on Soot Formation", Proceedings of the Combustion Institute, Vol. 31, pp. 593-601, 2007. https://doi.org/10.1016/j.proci.2006.08.105
  9. H. Guo, K.A. Thomason and G.J. Smallwood, "On the Effect of Carbon Monoxide Addition on Soot Formation in Laminar Ethylene/Air Coflow Diffusion Flame", Combustion and Flame, Vol. 156, pp. 1135-1142, 2009. https://doi.org/10.1016/j.combustflame.2009.01.006
  10. K.P. Schug, Y. Manheimer-Timnat, P. Yaccarino and I. Glassman, "Sooting behavior of Gaseous Hydrocarbon Diffusion Flames and the Influence of Additives", Combustion Science and Technology, Vol. 22, pp. 235-250, 1980. https://doi.org/10.1080/00102208008952387
  11. I.S. McLintock, "The Effect of Various Diluents on Soot Production in Laminar Ethylene Diffusion Flames", Combustion and Flame, Vol. 12, pp. 217-225, 1968. https://doi.org/10.1016/0010-2180(68)90018-7
  12. C.R. Shaddix and K.C. Smyth, "Laser-Induced Incandescence Measurements of Soot Production in Steady and Flickering Methane, Propane, and Ethylene Diffusion Flames", Combustion and Flame, Vol. 107, pp. 418-452, 1996. https://doi.org/10.1016/S0010-2180(96)00107-1
  13. J.F. Widmann, J.C. Yang, T.J. Smith, S.L. Manzello and G.W. Mulholland, "Measurement of the Optical Extinction Coefficients of Post-Flame Soot in the Infrared", Combustion and Flame, Vol. 134, pp. 119-129, 2003. https://doi.org/10.1016/S0010-2180(03)00089-0
  14. E.J. Lee, C.S. Ahn, H.J. Shin, K.C. Oh and U.D. Lee, "Smoke Characteristics of a Small Scale Pool Fire", 한국화재소방학회, Vol. 19, pp. 58-63, 2005.
  15. E.J. Lee, K.C. Oh and H.D. Shin, "Soot formation in inverse diffusion flames of diluted ethene", Fuel, Vol. 84, pp. 543-550, 2005. https://doi.org/10.1016/j.fuel.2004.11.003