Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Flow Characteristics of Propane Premixed Flame on AC Electric Field

교류 전기장 인가에 따른 프로판 예혼합 화염의 유동 특성

  • 김보윤 (한국교통대학교 항공기계설계학과) ;
  • 김민석 (한국교통대학교 항공기계설계학과) ;
  • 김태훈 (한국교통대학교 항공기계설계학과) ;
  • 권일송 (한국교통대학교 항공기계설계학과) ;
  • 김혜민 (한국교통대학교 항공기계설계학과)
  • Received : 2024.03.12
  • Accepted : 2024.03.23
  • Published : 2024.03.31
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Abstract

This study investigates the flow characteristics of propane-air premixed flames on AC electric field using the Schlieren method. A voltage was applied to the ring electrode and the burner was grounded to form an electric field, and the applied voltage was fixed at 16 kV (Vpp). Results show that under the application of AC electric fields, flow around the flame oscillated only at frequencies below 50 Hz, and no oscillation was observed above this frequency range. Flame height oscillated with frequency in the range of 25 to 300 Hz, with frequency doubling observed in the range of 25 to 150 Hz. The flammability limit increased with frequency up to 250 Hz, but in the high-frequency range above 250 Hz, the flammability limit did not increased and converged.

Keywords

Acknowledgement

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No.RS-2023-00249422).

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