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Ben T. Zinn
Researcher at Georgia Institute of Technology
Publications - 258
Citations - 4956
Ben T. Zinn is an academic researcher from Georgia Institute of Technology. The author has contributed to research in topics: Combustor & Combustion. The author has an hindex of 34, co-authored 258 publications receiving 4650 citations. Previous affiliations of Ben T. Zinn include Georgia Tech Research Institute.
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Journal ArticleDOI
The role of equivalence ratio oscillations in driving combustion instabilities in low NOx gas turbines
Tim Lieuwen,Ben T. Zinn +1 more
TL;DR: In this article, a theoretical investigation of combustion instabilities in low NOX gas turbines (LNGT) that burn fuel in a lean premixed mode is presented, where the authors show that these instabilities may be caused by interactions of combustor pressure oscillations with the reactants' supply rates, producing equivalence ratio perturbations in the inlet duct.
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A Mechanism of Combustion Instability in Lean Premixed Gas Turbine Combustors
TL;DR: In this paper, the authors investigated the mechanisms responsible for combustion instabilities and found that combustors operating in a lean, premixed (LP) mode of combustion are highly sensitive to variations in the equivalence ratio (O) of the mixture that enters the combustor.
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The Role of Unmixedness and Chemical Kinetics in Driving Combustion Instabilities in Lean Premixed Combustors
TL;DR: In this paper, an unsteady well-stirred reactor model was developed and used to determine the magnitude of the reaction rate and heat release oscillations produced by periodic flow rate, temperature or equivalence ratio perturbations in the combustor's inlet flow at different mean equivalence ratios.
Journal ArticleDOI
Active Control of Lean Blowout for Turbine Engine Combustors
T. M. Muruganandam,Suraj Nair,David Scarborough,Yedidia Neumeier,Jeff Jagoda,Tim Lieuwen,Jerry Seitzman,Ben T. Zinn +7 more
TL;DR: In this paper, an active control system was developed to permit turbine engine combustors to operate safely closer to the lean-blowout (LBO) limit, even in the presence of disturbances, using OH chemiluminescence and a threshold-based identification strategy to detect LBO precursor events.
Journal ArticleDOI
Nonlinear combustion instability in liquid-propellant rocket engines
Ben T. Zinn,Eugene A. Powell +1 more
TL;DR: In this paper, the authors describe nonlinear combustion instability in liquid propellant rocket engines, describing unsteady combustor flow with single wave equation, and describe the behavior of a single-wave equation.