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A Novel Methodology for Calculating Combustion Characteristics Across the Combustion Zone Length

Author

Listed:
  • Wisam Yousef

    (School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310013, China)

  • Ziwan Li

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

  • Kai Zhou

    (School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310013, China)

  • Jianping Yan

    (School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310013, China)

Abstract

This paper introduces a novel mathematical model designed to determine combustion characteristics across the length of the combustion zone, underpinned by logical theoretical foundations and demonstrating notable alignment with experimental findings. The model facilitates the calculation of combustion efficiency based on inlet flow parameters (temperature, pressure, velocity, length, porosity, and air excess ratio), achieving efficiencies beyond conventional limits (η = 0.98–0.99) and reaching high values (η = 0.999–0.9999), which is crucial for optimizing low-emission combustors. Verification of the mathematical model was conducted through a dual approach: experimental validation and computational fluid dynamics (CFD) simulations. Comparative analysis revealed a high degree of consistency among theoretical predictions, CFD results, and experimental data, particularly for temperature and combustion efficiency distributions along the combustor length. This robust agreement affirms the model’s accuracy, reliability, and utility in advancing combustion research and developing efficient, low-emission combustors.

Suggested Citation

  • Wisam Yousef & Ziwan Li & Kai Zhou & Jianping Yan, 2025. "A Novel Methodology for Calculating Combustion Characteristics Across the Combustion Zone Length," Energies, MDPI, vol. 18(6), pages 1-19, March.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:6:p:1470-:d:1614001
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    References listed on IDEAS

    as
    1. Hongling Ju & Renjie Zhou & Deman Zhang & Peng Deng & Zhaowen Wang, 2024. "Effects of Oxygen Concentration on Soot Formation in Ethylene and Ethane Fuel Laminar Diffusion Flames," Energies, MDPI, vol. 17(16), pages 1-14, August.
    2. Attila Kiss & Bálint Szabó & Krisztián Kun & Zoltán Weltsch, 2024. "Prediction of Efficiency, Performance, and Emissions Based on a Validated Simulation Model in Hydrogen–Gasoline Dual-Fuel Internal Combustion Engines," Energies, MDPI, vol. 17(22), pages 1-26, November.
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