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Keywords: combustion instabilities
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Proceedings Papers

Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T03A012, June 7–11, 2021
Paper No: GT2021-59842
.... hydrogen micromix combustion CFD combustion instabilities Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59842 NUMERICAL INVESTIGATION OF POTENTIAL CAUSE OF INSTABILITIES IN A HYDROGEN MICROMIX INJECTOR ARRAY...
Proceedings Papers

Proc. ASME. GT2021, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A037, June 7–11, 2021
Paper No: GT2021-59098
... to the uniform fuel staging, however, the pressure magnitude is considerably reduced, which provides a potential strategy to mitigate and/or suppress the instabilities. combustion instabilities thermoacoustics azimuthal mode dynamical system fuel staging Proceedings of ASME Turbo Expo 2021...
Proceedings Papers

Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A043, June 7–11, 2021
Paper No: GT2021-60285
... insights on designing nozzle locations around the center nozzle for minimal amplification of a given transverse mode. high frequency combustion instabilities multi-nozzle Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual...
Proceedings Papers

Proc. ASME. GT2012, Volume 2: Combustion, Fuels and Emissions, Parts A and B, 479-490, June 11–15, 2012
Paper No: GT2012-68698
..., as a function of the flow perturbations in the premix duct. This approach is demonstrated for an annular ring of burners on a in a simple geometry. The approach is then extended to an industrial type gas turbine combustor, and used to predict the limit cycle amplitudes. Combustion Instabilities G...
Proceedings Papers

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 987-999, June 11–15, 2012
Paper No: GT2012-68845
... Lean low emission combustors are prone to combustion instabilities. Therefore integrating damping devices into the cooling concept is a viable approach. Information on the impact of pressure fluctuations caused by combustion instabilities on the cooling performance of both acoustic-focused...
Proceedings Papers

Proc. ASME. GT2011, Volume 2: Combustion, Fuels and Emissions, Parts A and B, 277-288, June 6–10, 2011
Paper No: GT2011-45255
... with experiment, demonstrating the potential of this approach to predict instabili- ties, and as a test bench for developing control strategies. Keywords: Combustion Instabilities, G-Equation, Ther- moacoustics, Gas Turbines, Premixed Flames. NOMENCLATURE A Amplitude of the velocity perturbation, normalised...
Proceedings Papers

Proc. ASME. GT2007, Volume 2: Turbo Expo 2007, 587-596, May 14–17, 2007
Paper No: GT2007-27775
... P remixed P re-Vaporized ( LPP ) combustion. However, serious problems concerning combustion-driven instabilities occurred with the implementation of the LP/LPP-concept. Today, prediction and systematic suppression of self-sustained combustion instabilities is an issue still unsolved, due...
Proceedings Papers

Proc. ASME. GT2007, Volume 2: Turbo Expo 2007, 721-731, May 14–17, 2007
Paper No: GT2007-27932
... the underlying physics controlling the phenomenon. Combustion Instabilities Swirling Flow Proceedings of GT2007 ASME Turbo Expo 2007: Power for Land, Sea and Air May 14-17, 2007, Montreal, Canada 1 Copyright © 2007 by ASME fluorescence (PLIF) measurements at several representative conditions...
Proceedings Papers

Proc. ASME. GT2003, Volume 2: Turbo Expo 2003, 109-118, June 16–19, 2003
Paper No: GT2003-38113
...Proceedings of ASME Turbo Expo 2003 Power for Land, Sea and Air June 16-19, 2003, Atlanta, Georgia, USA R NE understanding of the feedback mechanisms the dynamic flame response characteristics, quantified by flame transfer functions, Keywords: gas turbine combustion, combustion instabilities, flame...
Proceedings Papers

Proc. ASME. GT2003, Volume 2: Turbo Expo 2003, 139-147, June 16–19, 2003
Paper No: GT2003-38169
... which can independently vary its fuel spray properties, and investigated the dependence of acoustics- combustion process coupling, i.e., the driving of combustion instabilities, upon the fuel spray properties. The results of this study showed that by changing the spray characteristics it is possible...
Proceedings Papers

Proc. ASME. GT2004, Volume 1: Turbo Expo 2004, 517-526, June 14–17, 2004
Paper No: GT2004-53808
... combustors, dump For fully developed combustion instabilities the pressure oscillations are mostly high enough to cause the formation of coherent large-scale ring-vortices near the burner outlet. These vortices change the flow and mixing field, resulting in a strong interaction with the reaction zone...
Proceedings Papers

Proc. ASME. GT2004, Volume 1: Turbo Expo 2004, 453-463, June 14–17, 2004
Paper No: GT2004-53710
... 25 11 2008 The prediction and the systematic suppression of self-sustained combustion instabilities in combustors for gas turbine applications still suffer from incomplete physical understanding of the feedback mechanisms and lack of experimental data of the dynamic flame...