Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Lean Burn Combustion Characteristics of Propane Premixed Flame in Electric Field

전기장 인가에 따른 프로판 예혼합 화염의 희박연소 특성

  • 김민석 (한국교통대학교 항공기계설계학과) ;
  • 최준영 (한국교통대학교 항공기계설계학과) ;
  • 김태훈 (한국교통대학교 항공기계설계학과) ;
  • 김혜민 (한국교통대학교 항공기계설계학과)
  • Received : 2023.01.25
  • Accepted : 2023.03.03
  • Published : 2023.03.31
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Abstract

In this study, characteristics of a propane-air premixed flame sin DC electric field was investigated. The stainless steel Bunsen burner and the stainless steel ring were used as electrode, and the high voltage supply was used for applying electric field. Flammability range increased significantly when the positive voltage was applied because of extension of LBO limit, while it shrank when the negative voltage was applied. The reason for this was not much related to the burning velocity, but the induced flow around the burner by electric field. withNOx production slightly increased after positive voltage was applied in identical equivalence ratio. Nevertheless, it was advantageous to apply the positive electric field to reduce the NOx since the extension of LBO limit makes the burner possible to operate in very low equivalence ratio.

Keywords

Acknowledgement

이 성과는 2021년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. 2020R1I1A306765612).

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