대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제27권8호
  • /
  • Pages.1134-1141
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  • 2003
  • /
  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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가스터빈 연소기내 CARS 온도측정을 통한 연소해석

Combustion Analysis with CARS Temperature Measurement in a Gas Turbine Combustor

  • 이종호 (부산대학교 기계공학과) ;
  • 박철웅 (한국 표준과학연구원 레이저계측그룹) ;
  • 한영민 (한국 항공우주연구원 추진기관연구부) ;
  • 고영성 (한국 항공우주연구원 추진기관연구부) ;
  • 이수용 (한국 항공우주연구원 추진기관연구부) ;
  • 양수석 (한국 항공우주연구원 추진기관연구부) ;
  • 이대성 (한국 항공우주연구원 추진기관연구부) ;
  • 전충환 (부산대학교 기계공학과) ;
  • 장영준 (부산대학교 기계공학과) ;
  • 신현동 (한국 과학기술원 기계공학과) ;
  • 한재원 (한국 과학기술원 기계공학과)
  • 발행 : 2003.08.01
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초록

Performance of a gas turbine combustor installed in a test facility has been studied by measuring spatially- and temporally-resolved temperature distributions using multiplex CARS technique. 500 CARS temperatures were determined at each measuring point to obtain a histogram of temperature distribution. Experiments were carried out in the aero-engine combustor sector rig burning standard kerosene fuel. The histograms were obtained around a triple-sector double annular rig running in ground idle conditions, showing features of flow mixing within the rig. The temperature histograms that prove the existence of high temperatures above 1900 K provide us valuable information to improve the design of the combustor structure suppressing NOx generation in turbulent combustion processes. The effects of swirl direction and pre-filmer on gas turbine combustion were investigated. When we installed radial swirls, a large recirculation zone was formed by the fuel module regardless of swirl directions and the pre-filmer installation. It is found that the swirl direction affects the shape of the reverse flow zone, however. Also, an attempt to estimate the flow field and flame structure is made using the histogram of temperature determined with the CARS technique.

키워드

참고문헌

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