Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Visualization of the Combustion-field in Ultrasonically-atomized Slit-jet Flame Using a Thermo-graphic Camera

열화상카메라를 이용한 초음파 무화 슬릿제트화염의 연소장 가시화

  • Kim, Min Sung (Department of Mechanical Engineering, Pukyong National University) ;
  • Koo, Jaye (School of Mechanical and Aerospace Engineering, Korea Aerospace University) ;
  • Kim, Heuy Dong (Department of Mechanical Engineering, Andong National University) ;
  • Kim, Jeong Soo (Department of Mechanical Engineering, Pukyong National University)
  • Received : 2016.06.19
  • Accepted : 2016.07.15
  • Published : 2016.08.01
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Abstract

An experimental study was performed for the combustion-field visualization of the burner which burns the liquid hydrocarbon fuel atomized by an ultrasonic oscillator. Configurations of the flame and combustion-field were caught by both high-speed camera and thermo-graphic camera, and those images were analyzed in detail through a post-processing. As a result, the combustion-field grew and reaction-temperature rose due to the strengthening of combustion reaction with the increasing flow-rate of carrier-gas. In addition, a phenomenon of flame flickering was discussed through the comparative analysis of the variational behaviors between the visible flame and IR (Infrared) flame-field.

초음파 진동자에 의해 미립화된 탄화수소계 액체연료를 연소시키는 버너의 연소장을 가시화시키기 위한 실험이 수행되었다. 초고속카메라와 열화상 카메라를 이용하여 화염형상 및 연소장 이미지를 획득하였으며, 후처리를 통해 화염과 연소장의 구조 및 거동을 면밀히 분석하였다. 수송기체 유량이 증가하면 연소반응이 촉진되어 연소영역이 신장되고, 반응온도가 증가하였다. 또한, 시간에 따른 가시화염과 IR 연소장의 거동변화를 비교분석하여 화염의 진동특성을 고찰하였다.

Keywords

References

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