반경 방향 연료 스테이징을 통한 메조스케일 다중노즐 연소불안정 및 배기가스 제어

The effect of radial fuel staging on combustion instabilities and NOx/CO emissions characteristics was investigated in a mesoscale multinozzle array consisting of sixty swirl injectors. We observe that inner fuel staging effectively mitigates high-amplitude oscillations by controlling the collective...

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Bibliographic Details
Published in한국연소학회지 Vol. 27; no. 3; pp. 14 - 23
Main Authors 강혜빈(Hyebin Kang), 김규태(Kyu Tae Kim)
Format Journal Article
LanguageKorean
Published 한국연소학회 01.09.2022
Subjects
기계공학
Multinozzle
Combustion instability
Exhaust emissions
Fuel staging
Gas turbine combustion
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ISSN1226-0959
2466-2089
DOI10.15231/jksc.2022.27.3.014

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Summary:The effect of radial fuel staging on combustion instabilities and NOx/CO emissions characteristics was investigated in a mesoscale multinozzle array consisting of sixty swirl injectors. We observe that inner fuel staging effectively mitigates high-amplitude oscillations by controlling the collective motion of the small-scale flames. The production of thermal NOx and CO emissions, however, tends to increase due to the presence of high-temperature region in the center flames. This result means that combustion dynamics and exhaust emissions need to be compromised when radial fuel staging scheme is used in gas turbine combustor environments. KCI Citation Count: 0
Bibliography:https://www.jkosco.org/articles/article/NGr4/
ISSN:1226-0959
2466-2089
DOI:10.15231/jksc.2022.27.3.014