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Numerical study of fuel temperature influence on single gas jet combustion in highly preheated and oxygen deficient air

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  • Yang, Weihong
  • Blasiak, Wlodzimierz

Abstract

Combustion of a single jet of propane in a cross-flowing stream of preheated and oxygen deficient air is numerically analyzed with emphasis on influences of fuel temperature. Both Eddy-Break-Up and PDF/mixture fraction combustion models coupled with RNG k–ε turbulent model were applied and the predicted results were compared. Thermal and prompt NO models were employed to calculate NO emissions. Results show that the Eddy-Break-Up model is more suitable for predicting temperature field and flame shape. It was showed that flame during high temperature air combustion condition is spread over a much larger volume. Flame volume increases with a reduction of oxygen concentration, and this trend is clearer if oxygen concentration in the preheated air is below 10%. Additionally, it is almost constant at fixed oxygen concentration and fuel inlet temperature for the temperature of the preheated and oxygen deficient air equal to 1041–1273 K. Increase of the fuel inlet temperature results in smaller flame, shorter mean residence time, smaller temperature peaks, and lower emission of NO.

Suggested Citation

  • Yang, Weihong & Blasiak, Wlodzimierz, 2005. "Numerical study of fuel temperature influence on single gas jet combustion in highly preheated and oxygen deficient air," Energy, Elsevier, vol. 30(2), pages 385-398.
    • Handle: RePEc:eee:energy:v:30:y:2005:i:2:p:385-398
    DOI: 10.1016/j.energy.2004.05.011
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    Cited by:

    1. Li, Xin & Hu, Longhua & Shang, Fengju, 2018. "Flame downwash transition and its maximum length with increasing fuel supply of non-premixed jet in cross flow," Energy, Elsevier, vol. 164(C), pages 298-305.
    2. Pourhoseini, S.H., 2017. "A novel configuration of natural gas diffusion burners to enhance optical, thermal and radiative characteristics of flame and reduce NOx emission," Energy, Elsevier, vol. 132(C), pages 41-48.
    3. Ren, Shoujun & Yang, Haolin & Wang, Xiaohan, 2021. "The oxygen-deficient combustion and its effect on the NOx emission in a localized stratified vortex-tube combustor," Energy, Elsevier, vol. 235(C).
    4. Pourhoseini, S.H., 2020. "Enhancement of radiation characteristics and reduction of NOx emission in natural gas flame through silver-water nanofluid injection," Energy, Elsevier, vol. 194(C).
    5. Carlo Cravero & Alessandro Lamberti & Luca Poggio, 2023. "CFD Prediction of a Double Impulse Burner for Glass Furnaces," Energies, MDPI, vol. 16(11), pages 1-17, May.
    6. Lawal, Mohammed S. & Fairweather, Michael & Gogolek, Peter & Ingham, Derek B. & Ma, Lin & Pourkashanian, Mohamed & Williams, Alan, 2013. "CFD predictions of wake-stabilised jet flames in a cross-flow," Energy, Elsevier, vol. 53(C), pages 259-269.
    7. Liu, Jian & Song, Yidan & Xie, Gongnan & Sunden, Bengt, 2015. "Numerical modeling flow and heat transfer in dimpled cooling channels with secondary hemispherical protrusions," Energy, Elsevier, vol. 79(C), pages 1-19.
    8. He, Yizhuo & Zou, Chun & Song, Yu & Liu, Yang & Zheng, Chuguang, 2016. "Numerical study of characteristics on NO formation in methane MILD combustion with simultaneously hot and diluted oxidant and fuel (HDO/HDF)," Energy, Elsevier, vol. 112(C), pages 1024-1035.

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