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ACOUSTIC BASED RAPID BLOWOUT MITIGATION IN A SWIRL STABILIZED COMBUSTOR


This paper describes a method for efficiently detecting and preventing lean blow out (LBO) in a premixed, swirl stabilized combustor. The acoustic signal is processed to determine the real time LBO probability. This requires detection of localized extinction 'events' and rapid calculation of event frequency. As LBO probability increases, a proportional derivative controller actuates valves to redirect a fraction of the total fuel into a central, premixed pilot. The actuation increases the equivalence ratio in the stabilization region at a constant power setting and counters the flame lift associated with LBO. It is shown that the developed controller can prevent LBO even during rapid transients in equivalence ratio, φ.......

【作者名称】: Shashvat Prakash, Suraj Nair, T. M. Muruganandam, Yedidia Neumeier, Tim Lieuwen, Jerry M. Seitzman
【作者单位】: School of Mechanical Engineering Georgia Institute of Technology Atlanta, Georgia 30332
【关 键 词】: ACOUSTIC BASED RAPID BLOWOUT MITIGATION IN A SWIRL STABILIZED COMBUSTOR
【会议名称】: ASME Turbo Expo vol.2; 20050606-09; Reno-Tahoe,NV(US)
【期刊论文数据库】: [DBS_Articles_01]
【期刊论文编号】: 101,177,322
【摘要长度】: 728
【会议地点】: Reno-Tahoe,NV(US)
【会议组织】: School of Mechanical Engineering Georgia Institute of Technology Atlanta, Georgia 30332
【会议时间】: 2005
【上篇论文】: 外文会议 - Ethanol Based Engineered Fuels and Biorefinery Technology: A U.S. Experience
【下篇论文】: 外文会议 - THE FFECT OF DIFFERENT HEATING PATTERNS ON VACUUM FREEZE DRYING OF LITCHI PULP

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