Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Experimental Study on Combustion Instability Characteristics of Model Gas Turbine Combustor at Various H2/CH4/CO Composition

H2/CH4/CO 연료조성 변화에 따른 모형 가스터빈 연소기 불안정 특성에 대한 실험적 연구

  • Yoon, Jisu (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Lee, Min-Chul (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Joo, Seongpil (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Kim, Jeongjin (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Yoon, Youngbin (School of Mechanical and Aerospace Engineering, Seoul National University)
  • Received : 2013.06.01
  • Accepted : 2013.11.15
  • Published : 2013.12.01
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Abstract

IGCC(Integrated Gasification Combined Cycle) system is candidates which can solve the environmental problems including global warming, since it can be easily combined with CCS(Carbon Capture System). In this research, combustion instability characteristics were studied at various fuel which are composed of $H_2/CH_4/CO$ mixture. Mode analysis for instabilities observed experimentally was conducted and the linearly increasing tendency of frequency was observed as the hydrogen content in fuel increases.

IGCC(Integrated Gasification Combined Cycle)의 경우 CCS(Carbon Capture System) 시스템과의 결합을 통하여 지구온난화와 같은 환경문제를 해결할 수 있는 발전 방식의 하나로 여겨진다. 따라서 합성가스 연소특성에 대한 연구가 중요하며 본 연구에서는 $H_2/CH_4/CO$로 구성된 합성가스 조성을 바꾸어가며 가스터빈 연소불안정 특성에 대한 실험적 연구를 수행하였다. 실험과정에서 발생한 연소불안정에 대한 모드 분석을 수행하였고 연료 중 수소 비율 증가에 따른 주파수 천이 현상 또한 확인하였다.

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References

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