Results 21 to 30 of about 2,006 (138)

Application of a three-step approach for prediction of combustion instabilities in industrial gas turbine burners

open access: yesJournal of the Global Power and Propulsion Society, 2018
Recently, because of environmental regulations, gas turbine manufacturers are restricted to produce machines that work in the lean combustion regime. Gas turbines operating in this regime are prone to combustion-driven acoustic oscillations referred as ...
Dmytro Iurashev   +5 more
doaj   +1 more source

Acoustic Boundary Conditions for Can-Annular Combustors

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
This paper derives and validates an analytical model for acoustic boundary conditions on a can-annular gas turbine combustion system composed of discrete cans connected to an open annulus upstream of a turbine.
James Brind
doaj   +1 more source

Jet engine combustor parametric analyzes [PDF]

open access: yesINCAS Bulletin
The combustion processes specific to jet engines involve aerodynamic, thermodynamic, combustion chemistry and heat transfer aspects with implications on performance and environmental pollution reduction. The operating performances of a combustion chamber
Vasile PRISACARIU   +2 more
doaj   +1 more source

A Real-Time Combustion Instability Simulation with Comprehensive Thermo-Acoustic Dynamic Model

open access: yesEnergies, 2018
The thermo-acoustic instability in the combustion process of a gas turbine is caused by the interaction of the heat release mechanism and the pressure perturbation.
Jaeyoung Han   +3 more
doaj   +1 more source

Flame stability and behavior inside meso-scale combustor with different flame holder

open access: yesMATEC Web of Conferences, 2018
Flame stability and behavior inside meso-scale combustor with different flame holder was investigated experimentally. Three types of flame holder i.e. wire mesh, flat plate with circular holes and flat plate with narrow slits, were used to improve the ...
Yuliati Lilis
doaj   +1 more source

Robust Gas Turbine Combustor with Acoustic Liner

open access: yesJournal of Thermal Science and Technology, 2012
Combustion oscillation of a self-excited thermo-acoustic phenomenon occurs inside the gas turbine combustor. Its excessive pressure fluctuation may impair the gas turbine engine operation, and could result in hardware severe damages.
Kazufumi IKEDA   +2 more
doaj   +1 more source

Study on the Influence of the Pilot Stage Swirl Intensity on the Double-Swirl Combustor’s Ignition Process via Large Eddy Simulation

open access: yesMachines, 2023
The ignition reliability of the combustion chamber is crucial for the overall performance of an engine. As the aero-engine combustion chambers continue to advance, the scope of the ignition problem has also expanded.
Pengfei Zhu   +5 more
doaj   +1 more source

Influence of Fluidic Control in a Staged Lean Jet Engine Burner on Combustor Performance

open access: yesFluids, 2019
To improve the turn-down ratio of a lean combustor, which has the greatest potential for reducing NOx emissions from jet engines, fuel staging is commonly employed.
Seiji Yoshida   +4 more
doaj   +1 more source

Optimal Design and Application of Gas Analysis System

open access: yesXibei Gongye Daxue Xuebao, 2020
To accurately measure the performance parameters of an aero-engine combustor under high-temperature and high-pressure environment, such as outlet temperature, combustion efficiency and pollutant emission, the optimal design of the existing gas sampling ...

doaj   +1 more source

Simulation of the GOx/GCH4 Multi-Element Combustor Including the Effects of Radiation and Algebraic Variable Turbulent Prandtl Approaches

open access: yesEnergies, 2020
Multi-element thrusters operating with gaseous oxygen (GOX) and methane (GCH4) have been numerically studied and the results were compared to test data from the Technical University of Munich (TUM).
Evgenij Strokach   +2 more
doaj   +1 more source

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