Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Behavioral Change of the Ultrasonic Standing Wave-affected Flame in the Reaction Zone of the Ultrasonically-atomized Kerosene Injected through a Slit-jet Nozzle

Slit-jet 노즐을 통해 분사되는 초음파 무화 케로신 화염의 정상초음파 가진에 의한 거동 변이

  • Bae, Chang Han (Department of Mechanical Engineering, Graduate School, Pukyong National University) ;
  • Kang, Yun Hyeong (Department of Mechanical Engineering, Graduate School, Pukyong National University) ;
  • Ahn, Hyun Jong (Department of Mechanical Engineering, Graduate School, Pukyong National University) ;
  • Kim, Jeong Soo (Department of Mechanical Engineering, Pukyong National University)
  • Received : 2021.12.03
  • Accepted : 2022.02.15
  • Published : 2022.02.28
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Abstract

A study was conducted to analyze the behavioral change of the kerosene flame ultrasonically-atomized under an ultrasonic standing-wave. Combustion region was visualized through DSLR, ICCD camera and the Schlieren photography with high-speed camera. The fuel consumption was measured by a precise scale. As a result, in the case of ultrasonic standing-wave excitation, it was observed that the intensity of OH radical(OH*) was enhanced and optimal combustion condition was formed around the upper edge of the standing-wave field.

본 연구는 정상초음파 가진 유무에 따른 초음파 무화 케로신 화염의 거동변이를 분석하기 위해 수행되었다. Slit-jet 노즐을 통과하며 생성된 연소영역은 DSLR, ICCD 및 초고속카메라와 슐리렌 기법을 통해 가시화되었고, 연료소모량은 정밀저울을 통해 측정하였다. 그 결과, 정상초음파 가진시, OH 라디칼의 강도가 증가하는 것이 관찰되었고 정상파장 상단부에서 최적 연소 조건이 형성됨을 확인하였다.

Keywords

Acknowledgement

본 논문은 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업(NRF-2016R1D1A3B01012622) 의 연구결과임.

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