Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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The Characteristics of the Flame Propagation Velocity and Volume Integral of Reaction Rate with the Variation of Fuel Injection Velocity for a Liftoff Flame

부상화염에서 연료유량에 따른 화염전파속도와 체적연소반응속도의 변화 특성에 관한 연구

  • 하지수 (계명대학교 에너지환경과학과) ;
  • 김태권 (계명대학교 기계자동차공학부) ;
  • 박정 (부경대학교 기계공학부)
  • Published : 2009.05.31
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Abstract

A numerical analysis of reactive flow in a liftoff flame is accomplished to elucidate the characteristics of flame propagation velocity and volume integral of reaction rate with the variation of fuel injection velocity at the fuel rich region, fuel lean region and diffusion flame region. The increase of fuel injection velocity enhances flame propagation velocity, but its effect on the flame propagation velocity is not much greater under 4%. The increase of fuel injection velocity affects directly and linearly on the flame surface area in the fuel rich region and so enhances volume integral of reaction rate to accommodate the increment of fuel.

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References

  1. L. Muniz, M. G. Mungal, "Instantaneous flame-stabilization velocities in lifted-Jet diffusion flames", Combust. Flame., Vol. 111, pp. 16-31, 1997 https://doi.org/10.1016/S0010-2180(97)00096-5
  2. J.W. Dold, "Flame propagation in a nonuniform mixture: Analysis of a slowly varying triple flame", Combust. Flame., Vol. 76, pp. 71-88, 1989 https://doi.org/10.1016/0010-2180(89)90079-5
  3. J. Boulanger, L. Vervisch, J. Reveillon, S. Ghosal, 'Effects of heat release in laminar diffusion flames lifted on round jets', Combust. Flame., Vol. 134, pp. 355–68, 2003 https://doi.org/10.1016/S0010-2180(03)00114-7
  4. T. Plessing, P. Terhoeven, N. Peters, M.S. Mansour, "An experimental and numerical study of a laminar triple flame", Combust. Flame., Vol. 115, pp. 335–53, 1998 https://doi.org/10.1016/S0010-2180(98)00013-3
  5. H.G. Im, J.H. Chen, "Structure and propagation of triple flames in partially premixed hydrogen-air mixtures", Combust. Flame., Vol. 119, pp. 436–54, 1999 https://doi.org/10.1016/S0010-2180(99)00073-5
  6. H.G. Im, J.H. Chen, "Effects of flow strain on triple flame propagation", Combust. Flame., Vol. 126, pp. 1384–392, 2001 https://doi.org/10.1016/S0010-2180(01)00261-9
  7. R.D. Lockett, B. Boulanger, S.C. Harding, D.A. Greenhalgh, "The structure and stability of the laminar counter-flow partially premixed methane/air triple flame", Combust. Flame., Vol. 119, pp. 109–20, 1999 https://doi.org/10.1016/S0010-2180(99)00046-2
  8. C.E. Frouzakis, A.G. Tomboulides, J. Lee, K. Boulouchos, "From diffusion to premixed flames in an $H_2/Air$ opposed-jet burner: The role of edge flames", Combust. Flame., Vol. 130, pp. 171–84, 2002 https://doi.org/10.1016/S0010-2180(02)00376-0
  9. Y.S. Ko, S.H. Chung, "Propagation of unsteady tribrachial flames in laminar non-premixed jets", Combust. Flame., Vol. 118, pp. 151–63, 1999 https://doi.org/10.1016/S0010-2180(98)00154-0
  10. Chung, S. H. and Lee, B. J., 'On the characteristics of laminar lifted flames in a nonpremixed jet', Combust. Flame., Vol. 86, pp. 62-72, 1991 https://doi.org/10.1016/0010-2180(91)90056-H
  11. J. Lee, S.H. Won, S.H. Jin, S.H. Chung, O. Fujita, K. Ito, "Propagation speed of tribrachial (triple) flame of propane in laminar jets under normal and micro gravity conditions", Combust. Flame., Vol. 134, pp. 411–20, 2003 https://doi.org/10.1016/S0010-2180(03)00115-9
  12. R.W. Bilger, Y.C. Chen, "Stabilization mechanism of lifted laminar flames in axisymmetric jet flows", Combust. Flame., Vol. 122, pp. 377-399, 2000 https://doi.org/10.1016/S0010-2180(00)00120-6
  13. K.K. Kuo, Principles of Combustion, John Wiley & Sons, New York, 1993