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Influence of DC Electric Field on the Propane-Air Diffusion Flames and NO x Formation

Author

Listed:
  • Sang-Min Kim

    (Accident Monitoring and Mitigation Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Korea)

  • Kyeong-Soo Han

    (Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI 48109, USA)

  • Seung-Wook Baek

    (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea)

Abstract

The aim of this research is to investigate the effects of a direct current (DC) electric field on the combustion behavior of a co-flow propane diffusion flame. The flame length and NO x emission were observed and measured. The electric field enhances the combustion process of propane diffusion flame by causing the movement of ions and molecules in the flame, resulting in a change in the shape of the flame. The flame heights decrease with an increase in the applied voltage and polarity, a more dominant effect to be observed with a positive DC electric field. However, for the applied negative polarity, the inner-cone of the propane diffusion flame is shifted by the electric field. Drastic reduction in the NO x emission is observed with an increase in the applied DC voltage and polarity. In the existing system, the reduction percentage of NOx is within the range of 55 to 78%.

Suggested Citation

  • Sang-Min Kim & Kyeong-Soo Han & Seung-Wook Baek, 2021. "Influence of DC Electric Field on the Propane-Air Diffusion Flames and NO x Formation," Energies, MDPI, vol. 14(18), pages 1-13, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:18:p:5745-:d:634091
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    References listed on IDEAS

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    1. Jianfeng Fang & Xiaomin Wu & Hao Duan & Chao Li & Zhongquan Gao, 2015. "Effects of Electric Fields on the Combustion Characteristics of Lean Burn Methane-Air Mixtures," Energies, MDPI, vol. 8(4), pages 1-19, March.
    2. Chao Li & Xiaomin Wu & Yiming Li & Juncai Hou, 2016. "Deformation Study of Lean Methane-Air Premixed Spherically Expanding Flames under a Negative Direct Current Electric Field," Energies, MDPI, vol. 9(9), pages 1-15, September.
    3. Yu-Chien Chien & Derek Dunn-Rankin, 2018. "Electric Field Induced Changes of a Diffusion Flame and Heat Transfer near an Impinging Surface," Energies, MDPI, vol. 11(5), pages 1-13, May.
    4. Ziheng Pu & Chenqu Zhou & Yuyao Xiong & Tian Wu & Guowei Zhao & Baodong Yang & Peng Li, 2019. "Two Dimensional Axisymmetric Simulation Analysis of Vegetation Combustion Particles Movement in Flame Gap under DC Voltage," Energies, MDPI, vol. 12(19), pages 1-13, September.
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    Cited by:

    1. Yonmo Sung, 2023. "Advances in Reduction Technologies of Gas Emissions (CO 2 , NO x , and SO 2 ) in Combustion-Related Applications," Energies, MDPI, vol. 16(8), pages 1-4, April.

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