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Improving Blowout Performance of the Conical Swirler Combustor by Employing Two Parts of Fuel at Low Operating Condition

Author

Listed:
  • Yixiang Yuan

    (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    University of the Chinese Academy of Sciences, Beijing 100049, China)

  • Qinghua Zeng

    (Institute for Aero Engine, Tsinghua University, Beijing 100084, China)

  • Jun Yao

    (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China)

  • Yongjun Zhang

    (Institute for Aero Engine, Tsinghua University, Beijing 100084, China)

  • Mengmeng Zhao

    (North China Institute of Aerospace Engineering, Langfang 065000, China)

  • Lu Zhao

    (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    University of the Chinese Academy of Sciences, Beijing 100049, China)

Abstract

Aiming at the problem of the narrow combustion stability boundary, a conical swirler was designed and constructed based on the concept of fuel distribution. The blowout performance was studied at specified low operating conditions by a combination of experimental testing and numerical simulations. Research results indicate that the technique of the fuel distribution can enhance the combustion stability and widen the boundary of flameout within the range of testing conditions. The increase of the fuel distribution ratio improves the combustion stability but leads to an increase in NOx emission simultaneously. The simulation results show the increase of the fuel distribution ratio causes contact ratio increase in the area of lower reference velocity and gas temperature increase. The increased contact ratio and temperature contribute to the blowout performance enhancement, which is identical to the analysis result of the Damkohler number. The reported work in this paper has potential application value for the development of an industrial burner and combustor with high stability and low NOx emission, especially when the combustion system is required to be stable and efficient at low working conditions.

Suggested Citation

  • Yixiang Yuan & Qinghua Zeng & Jun Yao & Yongjun Zhang & Mengmeng Zhao & Lu Zhao, 2021. "Improving Blowout Performance of the Conical Swirler Combustor by Employing Two Parts of Fuel at Low Operating Condition," Energies, MDPI, vol. 14(6), pages 1-11, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:6:p:1681-:d:519451
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    References listed on IDEAS

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    1. Chen, Lin & Zhang, Ren & Pan, Jiaying & Wei, Haiqiao, 2020. "Effects of partitioned fuel distribution on auto-ignition and knocking under spark assisted compression ignition conditions," Applied Energy, Elsevier, vol. 260(C).
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    Cited by:

    1. Alessandro Di Mauro & Marco Ravetto & Prashant Goel & Mirko Baratta & Daniela Anna Misul & Simone Salvadori & Rainer Rothbauer & Riccardo Gretter, 2021. "Modelling Aspects in the Simulation of the Diffusive Flame in A Bluff-Body Geometry," Energies, MDPI, vol. 14(11), pages 1-19, May.
    2. Jiming Lin & Ming Bao & Feng Zhang & Yong Zhang & Jianhong Yang, 2022. "Numerical and Experimental Investigation of a Non-Premixed Double Swirl Combustor," Energies, MDPI, vol. 15(2), pages 1-16, January.
    3. Ruslan V. Fedorov & Dmitry A. Generalov & Vyacheslav V. Sherkunov & Valeriy V. Sapunov & Sergey V. Busygin, 2023. "Improving the Efficiency of Fuel Combustion with the Use of Various Designs of Embrasures," Energies, MDPI, vol. 16(11), pages 1-15, May.

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