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Laminar burning velocity of n-butane/Hydrogen/Air mixtures at elevated temperatures

Author

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  • Jithin, E.V.
  • Dinesh, Kadali
  • Mohammad, Akram
  • Velamati, Ratna Kishore

Abstract

The effect of hydrogen (H2) addition in the laminar burning velocity (LBV) of n-butane-air at elevated temperatures is described in this paper. For various equivalence ratios (ϕ), ranging from 0.7 to 1.3, LBV was measured for 20%, 40% and 60% H2 addition to n-butane using a preheated mesoscale diverging channel technique. Using this experimental technique, LBV measurements were conducted for unburnt mixture temperature up to 450 K. The maximum burning velocity has been obtained at equivalence ratio 1.1 for all the mixture conditions. The LBV results at atmospheric condition for n-butane-hydrogen-air mixture were obtained by extrapolating the experimental data at elevated temperatures. “Heat flux method” experimental setup was used for measuring the LBV of n-butane-hydrogen-air mixture at atmospheric condition. The results obtained for LBV at atmospheric conditions with the two different methods at 0%, 20%, 40% and 60% H2 composition in n-butane were found to be in good agreement. The experimental results of LBV for n-butane were compared with the numerical predictions using USC mech II, Aramco mech 2.0 and LLNL reaction mechanisms. The numerical predictions of LBV using Aramco mech 2.0 shows good agreement with experimental data at rich, lean and stoichiometric mixture conditions.

Suggested Citation

  • Jithin, E.V. & Dinesh, Kadali & Mohammad, Akram & Velamati, Ratna Kishore, 2019. "Laminar burning velocity of n-butane/Hydrogen/Air mixtures at elevated temperatures," Energy, Elsevier, vol. 176(C), pages 410-417.
    • Handle: RePEc:eee:energy:v:176:y:2019:i:c:p:410-417
    DOI: 10.1016/j.energy.2019.04.002
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    References listed on IDEAS

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    1. Nair, Aswathy & Velamati, Ratna Kishore & Kumar, Sudarshan, 2016. "Effect OF CO2/N2 dilution on laminar burning velocity of liquid petroleum gas-air mixtures at elevated temperatures," Energy, Elsevier, vol. 100(C), pages 145-153.
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    Cited by:

    1. Xiao, Peng & Lee, Chia-fon & Wu, Han & Akram, M Zuhaib & Liu, Fushui, 2019. "Impacts of hydrogen-addition on methanol-air laminar burning coupled with pressures variation effects," Energy, Elsevier, vol. 187(C).
    2. Gao, Jianbing & Tian, Guohong & Jenner, Phil & Burgess, Max & Emhardt, Simon, 2020. "Preliminary explorations of the performance of a novel small scale opposed rotary piston engine," Energy, Elsevier, vol. 190(C).
    3. Domnina Razus & Codina Movileanu & Maria Mitu & Venera Giurcan, 2023. "Expansion Coefficients and Propagation Speeds of Premixed n -Butane–Air Flames," Energies, MDPI, vol. 16(15), pages 1-13, July.

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