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Dynamical Characterization of Thermoacoustic Oscillations in a Hydrogen-Enriched Partially Premixed Swirl-Stabilized Methane/Air Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, we systematically analyze the effects of hydrogen enrichment in the well-known PRECCINSTA burner, a partially premixed swirl-stabilized methane/air combustor. Keeping the equivalence ratio and thermal power ...
Intermittency, Secondary Bifurcation and Mixed-Mode Oscillations in a Swirl-Stabilized Annular Combustor: Experiments and Modeling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We experimentally study thermoacoustic transitions in an annular combustor consisting of sixteen premixed, swirl-stabilized turbulent flames. We show the changes in the characteristics of bifurcations leading to the state ...
Predicting the Amplitude of Thermoacoustic Instability Using Universal Scaling Behavior
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The complex interaction between the turbulent flow, combustion and the acoustic field in gas turbine engines often results in thermoacoustic instability that produces ruinously high-amplitude pressure oscillations. These ...
Erratum: “Dynamical Characterization of Thermoacoustic Oscillations in a Hydrogen-Enriched Partially Premixed Swirl-Stabilized Methane/Air Combustor” [ASME J. Eng. Gas Turbines Power, 143(12), p. 121022; DOI: 10.1115/1.4052091]
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The following are the changes made to the original paper:1. Section 2 (Experimental setup) Last paragraph third sentence -For each combination of thermal load and equivalence ratio, the fraction of hydrogen in the fuel was ...
Intermittency Route to Combustion Instability in a Laboratory Spray Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present study, we investigate the phenomenon of transition of a thermoacoustic system involving twophase flow, from aperiodic oscillations to limit cycle oscillations. Experiments were performed in a laboratory scale ...
Lagrangian Analysis of Flame Dynamics in the Flow Field of a Bluff Body-Stabilized Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experiments are performed in a partially premixed bluff body-stabilized turbulent combustor by varying the mean flow velocity. Simultaneous measurements obtained for unsteady pressure, velocity, and heat release rate are ...