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An Investigation of Fuel Mixing and Reaction in a CH 4 /Syngas/Air Premixed Impinging Flame with Varied H 2 /CO Proportion

Author

Listed:
  • Chih-Pin Chiu

    (Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan)

  • Szu-I Yeh

    (Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan)

  • Yu-Ching Tsai

    (Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan)

  • Jing-Tang Yang

    (Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan)

Abstract

For industrial applications, we propose a concept of clean and efficient combustion through burning syngas on an impinging burner. We performed experimental measurements of particle image velocimetry, OH radical (OH*) chemiluminescence, flame temperature, and CO emission to examine the fuel mixing and reaction of premixed impinging flames of CH 4 /syngas/air with H 2 /CO in varied proportions. The velocity distribution of the combustion flow field showed that a deceleration area in the main flow formed through the mutual impingement of two jet flows, which enhanced the mixing of fuel and air because of an increased momentum transfer. The deceleration area expanded with an increased CO proportion, which indicated that the mixing of fuel and air also increased with the increased CO proportion. Our examination of the OH* chemiluminescence demonstrated that its intensity increased with increased CO proportion, which showed that the reaction between fuel and air accordingly increased. CO provided in the syngas hence participated readily in the reaction of the CH 4 /syngas/air premixed impinging flames when the syngas contained CO in a large proportion. Although the volume flow rate of the provided CO quadrupled, the CO emission increased by only 12% to 15%. The results of this work are useful to improve the feasibility of fuel-injection systems using syngas as an alternative fuel.

Suggested Citation

  • Chih-Pin Chiu & Szu-I Yeh & Yu-Ching Tsai & Jing-Tang Yang, 2017. "An Investigation of Fuel Mixing and Reaction in a CH 4 /Syngas/Air Premixed Impinging Flame with Varied H 2 /CO Proportion," Energies, MDPI, vol. 10(7), pages 1-16, July.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:7:p:900-:d:103300
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    References listed on IDEAS

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    1. Zhen, H.S. & Leung, C.W. & Cheung, C.S., 2011. "Emission of impinging swirling and non-swirling inverse diffusion flames," Applied Energy, Elsevier, vol. 88(5), pages 1629-1634, May.
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    Cited by:

    1. Vadim Lemanov & Vladimir Lukashov & Konstantin Sharov, 2022. "Hydrogen Vortex Flow Impact on the Catalytic Wall," Energies, MDPI, vol. 16(1), pages 1-17, December.

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