Diesel Surrogate 상세 반응 기구를 이용한 HCCI 엔진의 연소 특성에 관한 수치해석 연구

A Numerical Study of Combustion Characteristics for HCCI Engine with Detailed Diesel Surrogate Chemical Mechanism

  • 이원준 (인하대학교 기계공학과 대학원) ;
  • 이승로 (인하대학교 기계공학과) ;
  • 이창언 (인하대학교 기계공학과)
  • 투고 : 2010.12.27
  • 심사 : 2011.06.11
  • 발행 : 2011.06.30

초록

Homogeneous charge compression ignition(HCCI) is the best concept able to provide low NOx and PM in diesel engine emissions. This new alternative combustion process is mainly controlled by chemical kinetics in comparison with the conventional combustion in internal combustion engine. In this paper, combustion characteristics of HCCI engine with suggested diesel surrogate(heptane/toluene mixture fuel) reaction mechanism were numerically investigated by heptane/toluene mixture ratio and EGR ratio. As results, the ignition timing became faster with increasing of heptane, and an initial oxidation and the ignition timing of the mixture fuel were affected by heptane and toluene, respectively.

키워드

참고문헌

  1. Igor Orlandini, Andre Kulzer, Frank Weberbauer, Martin Rauscher, "Simulation of Self Ignition in HCCI and Partial HCCI Engines Using a Reduced Order Model", SAE paper No. 2005-01-02159, 2005
  2. Yong Sun, Rolf D. Reitz, "Modeling Diesel Engine NOx and Soot Reduction with Optimized Two- Stage Combustion", SAE paper, No. 2006-01-0027, 2006
  3. F.maroteaux, L. Noel., "Development of a Reduced N-heptane Oxidation Mechanism for HCCI Combustion Medeling", Combustion and Flame, Vol. 146, No. 1-2, pp. 246-267, 2006 https://doi.org/10.1016/j.combustflame.2006.03.006
  4. Zhaolei Zheng, Mingfa Yao, "Numerical Study on the Chemical Reaction Kinetics of N-heptane for HCCI Combustion Process", Fuel, Vol. 85, No. 17-18, pp. 2605-2615, 2006
  5. Wonjun Lee, Seungro Lee, Chang-Eon Lee, "A Study on the Detailed Diesel Surrogate Chemical Mechanism for Annalysis of HCCI Engine", Transcation of KSAE, in press, 2011
  6. Johan Andrae, David Johansson, Pehr Bjornbom, Per Risberg, Gaautam Kalghatgi, "CO-oxidation in the Auto-ignition of Primary Reference Fuels and N-heptane/Toluene Blends", Combustion and Flame, Vol. 140, No. 4, pp. 267-286, 2005 https://doi.org/10.1016/j.combustflame.2004.11.009
  7. J.J.Hernandez, J. Sanz-Argent, J.Benajes, S.Molina, "Selection of a Diesel Fuel Surrogate for the Prediction of Auto-ignition under HCCI Engine Conditions", Fuel, Vol. 87, No. 6, pp. 655-665, 2008 https://doi.org/10.1016/j.fuel.2007.05.019
  8. Kee, Robert J., Fran M. Rupley, James A. Miller, CHEMKIN-II: A Fortran Chemical Kinetics Package for the Analysis of Gas-Phase Chemical Kinetics, SAND89-8009, Sandia National Laboratories, Livermore, California, 1989
  9. Heywood, John B., Internal Combustion Engine Fundamentals., pp. 678-680, McGraw-Hill Inc, 1988
  10. J.C.G. Andraee, T.Brinck, G.T.Kalghatgi, "HCCI Experiments with Toluene Reference Fuels Modeled by a Semidetailed Chemical Kinetic model", Combustion and Flame, Vol. 155, No. 4, pp. 696- 712, 2008 https://doi.org/10.1016/j.combustflame.2008.05.010