설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제21권2호
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  • Pages.126-130
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  • 2009
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

Silo 형 가스터빈 연소기에서 발생하는 연소진동 분석 및 저감

Analysis of Combustion Oscillation and its Suppression in a Silo Type Gas Turbine Combustor

  • 발행 : 2009.02.10
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초록

The present study describes an investigation into the characteristics of combustion oscillation and its suppression instability of a silo type gas turbine combustor in commercial power plant. Combustion oscillation is occurred the combustor in near full load during operation. As a result of FFT analysis of the combustion dynamics, the frequency of the oscillation is analyzed as the 1'st longitudinal mode of acoustic resonance of the combustor. For suppress of the instability, combustion tuning with adjust of fuel valve schedule is carried out, which changes equivalent ratio of each burners. As the result, the oscillation is successfully reduced with meeting the level of NOx emission regulation.

키워드

참고문헌

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