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The Effect of Initial Conditions on the Laminar Burning Characteristics of Natural Gas Diluted by CO 2

Author

Listed:
  • Zhiqiang Han

    (Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China)

  • Zhennan Zhu

    (Department of Engineering and Design, University of Sussex, Brighton BN1 9QT, UK)

  • Peng Wang

    (Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China)

  • Kun Liang

    (Department of Engineering and Design, University of Sussex, Brighton BN1 9QT, UK)

  • Zinong Zuo

    (Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China)

  • Dongjian Zeng

    (Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China)

Abstract

The initial conditions such as temperature, pressure and dilution rate can have an effect on the laminar burning velocity of natural gas. It is acknowledged that there is an equivalent effect on the laminar burning velocity between any two initial conditions. The effects of initial temperatures (323 K–423 K), initial pressures (0.1 MPa–0.3 MPa) and dilution rate (0–16%, CO 2 as diluent gas) on the laminar burning velocity and the flame instability were investigated at a series of equivalence ratios (0.7–1.2) in a constant volume chamber. A chemical kinetic simulation was also conducted to calculate the laminar burning velocity and essential radicals’ concentrations under the same initial conditions. The results show that the laminar burning velocity of natural gas increases with initial temperature but decreases with initial pressure and dilution rate. The maximum concentrations of H, O and OH increase with initial temperature but decrease with initial pressure and dilution rate. Laminar burning velocity is highly correlated with the sum of the maximum concentration of H and OH.

Suggested Citation

  • Zhiqiang Han & Zhennan Zhu & Peng Wang & Kun Liang & Zinong Zuo & Dongjian Zeng, 2019. "The Effect of Initial Conditions on the Laminar Burning Characteristics of Natural Gas Diluted by CO 2," Energies, MDPI, vol. 12(15), pages 1-19, July.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:15:p:2892-:d:252193
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    Citations

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    Cited by:

    1. Xueshun Wu & Peng Wang & Zhennan Zhu & Yunshou Qian & Wenbin Yu & Zhiqiang Han, 2021. "The Equivalent Effect of Initial Condition Coupling on the Laminar Burning Velocity of Natural Gas Diluted by CO 2," Energies, MDPI, vol. 14(4), pages 1-16, February.
    2. Zhennan Zhu & Kun Liang & Xinwen Chen & Zhongwei Meng & Wenbin He & Hao Song, 2020. "Laminar Flame Characteristics of Premixed Methanol–Water–Air Mixture," Energies, MDPI, vol. 13(24), pages 1-13, December.

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