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Effect OF CO2/N2 dilution on laminar burning velocity of liquid petroleum gas-air mixtures at elevated temperatures

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  • Nair, Aswathy
  • Velamati, Ratna Kishore
  • Kumar, Sudarshan

Abstract

The present experimental study reports the effect of CO2/N2 dilution on laminar burning velocity of premixed LPG (liquid-petroleum-gas)-air mixtures at elevated temperatures using a preheated mesoscale diverging channel technique. The experiments were carried out for a range of equivalence ratios varying from 0.8 < Φ < 1.3 with percentage dilution of the fuel component by volume (β) for CO2 varying from 10% < β < 30% and N2 varying from 10% < β < 40%. A power–law correlation has been obtained for the present experimental data as a function of percentage dilution, mixture temperature and equivalence ratio. It has been observed that an increase in dilution with CO2/N2 leads to an increase in temperature exponent (α). The increase in temperature exponent due to CO2 dilution is more pronounced as compared to N2 dilution case. A flame structure study has been carried out to understand the effect of mixture temperature and diluent using USC (University of Southern California) Mech II reaction mechanism.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:energy:v:100:y:2016:i:c:p:145-153
    DOI: 10.1016/j.energy.2016.01.094
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    References listed on IDEAS

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    Cited by:

    1. Wan, Jianlong & Fan, Aiwu & Yao, Hong & Liu, Wei, 2016. "Experimental investigation and numerical analysis on the blow-off limits of premixed CH4/air flames in a mesoscale bluff-body combustor," Energy, Elsevier, vol. 113(C), pages 193-203.
    2. Hu, Xianzhong & Yu, Qingbo, 2018. "Effect of the elevated initial temperature on the laminar flame speeds of oxy-methane mixtures," Energy, Elsevier, vol. 147(C), pages 876-883.
    3. 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).
    4. 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.
    5. Varghese, Robin John & Kishore, V. Ratna & Akram, M. & Yoon, Y. & Kumar, Sudarshan, 2017. "Burning velocities of DME(dimethyl ether)-air premixed flames at elevated temperatures," Energy, Elsevier, vol. 126(C), pages 34-41.
    6. Sun, Zuo-Yu & Li, Guo-Xiu, 2016. "Propagation characteristics of laminar spherical flames within homogeneous hydrogen-air mixtures," Energy, Elsevier, vol. 116(P1), pages 116-127.
    7. Aravind Muraleedharan & Jithin Edacheri Veetil & Akram Mohammad & Sudarshan Kumar & Ratna Kishore Velamati, 2021. "Effect of Burner Wall Material on Microjet Hydrogen Diffusion Flames near Extinction: A Numerical Study," Energies, MDPI, vol. 14(24), pages 1-24, December.

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