반경 방향 연료 스테이징을 통한 메조스케일 다중노즐 연소불안정 및 배기가스 제어
Control of Self-excited Instabilities and Emissions using Radial Fuel Staging in a Mesoscale Multinozzle Array
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
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.
Abstract
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.
참고문헌 (28)
- Y. Huang, "Dynamics and stability of lean-premixed swirl-stabilized combustion", Prog. Energy Combust. Sci, 35, pp.293~364 (2009)
- 문기훈, "다중 가스터빈 연소기의 음향 상호작용 시계열 분석", 한국연소학회지, 25(2), pp.36~43 (2020), 한국연소학회[DOI]
- 송원준, "부분 예혼합 화염의 연료 조성에 따른 연소불안정 특성", 한국연소학회지, 23(4), pp.15~22 (2018), 한국연소학회[DOI]
- 이지호, "희박 예혼합 모델 가스터빈 연소기에서 스월유동 특성이 화염 간 상호작용에 미치는 영향", 한국연소학회지, 23(1), pp.21~27 (2018), 한국연소학회[DOI]
- 왕위엔강, "DMD기법을 이용한 모형 가스터빈의 연소불안정성 분석", 한국연소학회지, 24(1), pp.51~56 (2019), 한국연소학회[DOI]
- 황동현, "스월-안정화 연소기에서 화염구조와 연소불안정에 대한 연구", 한국연소학회지, 25(2), pp.1~10 (2020), 한국연소학회[DOI]
- W. Lang, "Active control of combustion instability", Combust. Flame, 70, pp.281~289 (1987)
- S. Candel, "Combustion dynamics and control: Progress and challenges", Proc. Combust. Inst., 29, pp.1~28 (2002)
- G. A. Richards, "Passive control of combustion dynamics in stationary gas turbines", J. Propul. Power, 19, pp.795~810 (2003)
- J. Samarasinghe, "The effect of fuel staging on the structure and instability characteristics of swirl-stabilized flames in a lean premixed multinozzle can combustor", J. Eng. Gas Turb. Power, 139, pp.121504~ (2017)
- D. Kim, "Symmetrybreaking for the control of combustion instabilities of two interacting swirl-stabilized flame", Combust. Flame, 194, pp.180~194 (2018)
- B. Dolan, "Thermoacoustic coupling in a multinozzle staged combustor", J. Propul. Power, 34, pp.856~868 (2016)
- T. Lieuwen, "Stationary gas turbine combustion: Technology needs and policy considerations", Combust. Flame, 160, pp.1311~1314 (2013)
- 김대식, "수소 가스터빈 연소기술 개발 동향 고찰", 한국연소학회지, 24(4), pp.1~10 (2019), 한국연소학회[DOI]
- D. Noble, "Assessment of current capabilities and near-term availability of hydrogen-fired gas turbines considering a low-carbon future", J. Eng. Gas Turb. Power, 143, pp.041002~ (2021)
- W. D. York, "Development and testing of a low NOx hydrogen combustion system for heavy-duty gas turbines", J. Eng. Gas Turb. Power, 135, pp.022001~ (2013)
- T. Asai, "Performance of multiple-injection dry low-NOx combustors on hydrogen-rich syngas fuel in an IGCC pilot plant", J. Eng. Gas Turb. Power, 137, pp.091504~ (2015)
- R. Rajasegar, "Mesoscale burner array performance analysis", Combust. Flame, 199, pp.324~337 (2019)
- R. Bhagwan, "Combustion characteristics of natural gas fueled, premixed turbulent jet flame arrays confined in a hexagonal combustor", Proceedings of the ASME Turbo Expo
- T. Lee, "Direct comparison of self-excited instabilities in mesoscale multinozzle flames and conventional large-scale swirl-stabilized flames", Proc. Combust. Inst., 38, pp.6005~6013 (2021)
- N. Noiray, "Selfinduced instabilities of premixed flames in a multiple injection configuration", Combust. Flame, 145, pp.435~446 (2006)
- N. Noiray, "Dynamic phase converter for passive control of combustion instabilities", Proc. Combust. Inst, 32, pp.3163~3170 (2009)
- U. Jin, "Influence of radial fuel staging on combustion instabilities and exhaust emissions from lean-premixed multi-element hydrogen", methane, Combust. Flame, pp.2022, 242[DOI]
- H. Kang, "Experimental investigation of combustion instabilities of a mesoscale multinozzle array in a lean-premixed combustor", Proc. Combust. Inst., 38, pp.6035~6042 (2021)
- U. Jin, "Experimental investigation of combustion dynamics and NOx", CO emissions from densely distributed lean-premixed multinozzle CH4, H2, pp.air flames, Combust. Flame[DOI]
- 이태송, "희박 예혼합 메조스케일 다중노즐 수소 화염의 곡률 분포", 한국연소학회지, 26(1), pp.14~21 (2021), 한국연소학회[DOI]
- 이지호, "상호작용하는 두 스월 안정 화염에서 발생하는 준임계 분기 현상", 한국연소학회지, 24(2), pp.17~24 (2019), 한국연소학회[DOI]
- D. Ebi, "Flame dynmics intermittency in the bistable region near a subcritical hopf bifurcation", J. Eng. Gas Turb. Power, 140, pp.061504~ (2018)