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The analysis of temperature and air entrainment rate for the turbulence diffusion jet flame of propane and carbon dioxide gas mixture

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  • Lu, Zhengkang
  • Gao, Yuke
  • Li, Guochun
  • Liu, Bin
  • Xu, Yao
  • Tao, Changfa
  • Meng, Shun
  • Qian, Yejian

Abstract

A few of studies have investigated the temperature profile and air entrainment of the turbulent jet diffusion flame produced by the combustion of a gas mixture. In this study, the air entrainment rate and temperature distribution along the axis of a turbulent jet diffusion flame of propane mixed with different concentrations of carbon dioxide were therefore investigated, which using a series of experiments conducted with 2, 3, and 4 mm nozzles. The results show that the flame temperature increased in the continuous flame region and decreased in fire plume region as the carbon dioxide concentration increased under the same heat release rate. A virtual origin model was then developed to analyze the relationship between carbon dioxide concentration and flame temperature. The air entrainment rate of the fire plume region was influenced by the gas flow speed from the nozzles, and the total air entrainment rate was inversely proportional to the carbon dioxide concentration. A correlation among the flame temperature, carbon dioxide concentration, and air entrainment rate was then established, providing a valuable resource for the risk assessment of turbulent jet diffusion flames.

Suggested Citation

  • Lu, Zhengkang & Gao, Yuke & Li, Guochun & Liu, Bin & Xu, Yao & Tao, Changfa & Meng, Shun & Qian, Yejian, 2022. "The analysis of temperature and air entrainment rate for the turbulence diffusion jet flame of propane and carbon dioxide gas mixture," Energy, Elsevier, vol. 254(PA).
    • Handle: RePEc:eee:energy:v:254:y:2022:i:pa:s0360544222011355
    DOI: 10.1016/j.energy.2022.124232
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    References listed on IDEAS

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    1. Zhang, Xiaolei & Hu, Longhua & Delichatsios, Michael A. & Zhang, Jianping, 2019. "Experimental study on flame morphologic characteristics of wall attached non-premixed buoyancy driven turbulent flames," Applied Energy, Elsevier, vol. 254(C).
    2. Wan, Huaxian & Gao, Zihe & Ji, Jie & Zhang, Yongming & Li, Kaiyuan, 2018. "Experimental and theoretical study on flame front temperatures within ceiling jets from turbulent diffusion flames of n-heptane fuel," Energy, Elsevier, vol. 164(C), pages 79-86.
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    Cited by:

    1. Tang, Zhenhua & Wang, Zhirong & Zhao, Kun, 2023. "Flame stabilization characteristics of turbulent hydrogen jet flame diluted by nitrogen," Energy, Elsevier, vol. 283(C).
    2. Wang, Zhenhua & Jiang, Juncheng & Wang, Guanghu & Ni, Lei & Pan, Yong & Li, Meng, 2023. "Flame morphologic characteristics of horizontally oriented jet fires impinging on a vertical plate: Experiments and theoretical analysis," Energy, Elsevier, vol. 264(C).
    3. Wang, Lin & Yang, Yongbin & Ou, Yang & Zhong, Qiang & Zhang, Yan & Yi, Lingyun & Li, Qian & Huang, Zhucheng & Jiang, Tao, 2024. "In-depth study on the synergistic conversion mechanism of iron ore with waste biochar for co-producing directly reduced iron (DRI) and syngas," Energy, Elsevier, vol. 290(C).

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