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Diesel diffusion flame simulation using reduced n-heptane oxidation mechanism

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  • Zhang, Kesong
  • Liang, Zheng
  • Wang, Jianxin
  • Wang, Zhiming

Abstract

Based on the low temperature oxidation mechanism of alkane and the assumption that alkyl cracks into ethylenes and methyl directly at high temperature, a reduced mechanism of n-heptane oxidation containing 19 species and 21 reactions is achieved. The calculated ignition delays fit the experimental data reasonably well. Diesel diffusion flame in a constant volume vessel is investigated with CFD simulation using this reduced mechanism, and validated by high speed photography. The calculated results show very good agreement to the experiment, both chemiluminescent flame and high temperature flame could be evaluated accurately.

Suggested Citation

  • Zhang, Kesong & Liang, Zheng & Wang, Jianxin & Wang, Zhiming, 2013. "Diesel diffusion flame simulation using reduced n-heptane oxidation mechanism," Applied Energy, Elsevier, vol. 105(C), pages 223-228.
    • Handle: RePEc:eee:appene:v:105:y:2013:i:c:p:223-228
    DOI: 10.1016/j.apenergy.2013.01.006
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    References listed on IDEAS

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    1. Dhuchakallaya, I. & Watkins, A.P., 2010. "Application of spray combustion simulation in DI diesel engine," Applied Energy, Elsevier, vol. 87(4), pages 1427-1432, April.
    2. Wang, Xiangang & Huang, Zuohua & Zhang, Wu & Kuti, Olawole Abiola & Nishida, Keiya, 2011. "Effects of ultra-high injection pressure and micro-hole nozzle on flame structure and soot formation of impinging diesel spray," Applied Energy, Elsevier, vol. 88(5), pages 1620-1628, May.
    3. Pang, Kar Mun & Ng, Hoon Kiat & Gan, Suyin, 2012. "In-cylinder diesel spray combustion simulations using parallel computation: A performance benchmarking study," Applied Energy, Elsevier, vol. 93(C), pages 466-478.
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