Results 21 to 30 of about 21,213 (234)

Alternate-Fueled Combustor-Sector Performance—Part A: Combustor Performance and Part B: Combustor Emissions [PDF]

ISRN Mechanical Engineering, 2012
Alternate aviation fuels for military or commercial use are required to satisfy MIL-DTL-83133F or ASTM D 7566 standards, respectively, and are classified as “drop-in’’ fuel replacements. To satisfy legacy issues, blends to 50% alternate fuel with petroleum fuels are acceptable.
D. T. Shouse, C. Neuroth, R. C. Hendricks, A. Lynch, C. W. Frayne, J. S. Stutrud, E. Corporan, Capt. T. Hankins   +7 more
openaire   +1 more source

Improving Blowout Performance of the Conical Swirler Combustor by Employing Two Parts of Fuel at Low Operating Condition

Energies, 2021
Aiming at the problem of the narrow combustion stability boundary, a conical swirler was designed and constructed based on the concept of fuel distribution.
Yixiang Yuan, Qinghua Zeng, Jun Yao, Yongjun Zhang, Mengmeng Zhao, Lu Zhao   +5 more
doaj   +1 more source

Turbulence measurements downstream of a combustor simulator designed for studies on the combustor-turbine interaction

European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, 2023
Turbulence intensity impacts the performance of turbine stages and it is an important inlet boundary condition for CFD computations; the knowledge of its value at the turbine inlet is then of paramount importance. In combustor–turbine interaction experimental studies, combustor simulators replace real combustors and allow for the introduction of flow ...
Notaristefano A., Persico G., Gaetani P.
openaire   +3 more sources

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

Journal 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, Giovanni Campa, Vyacheslav V. Anisimov, Ezio Cosatto, Luca Rofi, Edoardo Bertolotto   +5 more
doaj   +1 more source

Experimental and Simulation Study on the Emissions of a Multi-Point Lean Direct Injection Combustor [PDF]

Journal of Applied Fluid Mechanics, 2023
Spurred by the world’s attention to pollution emissions from commercial aero-engines, the International Civil Aviation Organization (ICAO) has made more stringent emission regulations for civil aircraft engines, especially the NOx emission.This paper ...
P. Zhu, Q. Li, X. Feng, H. Liang, J. Suo, Z. Liu   +5 more
doaj   +1 more source

Optimisation of Combustor Wall Heat Transfer and Pollutant Emissions for Preliminary Design Using Evolutionary Techniques [PDF]

, 2003
This paper presents the concept and application of a design optimisation toolbox, based upon evolutionary techniques, for the preliminary design of a gas turbine combustor.
Rubini, Philip A., P. A. Rubini, J. M. Rogero, Rogero, J. M.   +3 more
core   +1 more source

Aerothermal Performance and Soot Emissions of Reacting Flow in a Micro-Gas Turbine Combustor

Energies, 2023
Micro-gas turbines are used for power generation and propulsion in unmanned aerial vehicles. Despite the growing demand for electric engines in a world striving for a net zero carbon footprint, combustion gas turbines will continue to play a critical ...
Heyu Wang, Kai Hong Luo
doaj   +1 more source

Jet engine combustor parametric analyzes [PDF]

INCAS 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, Irina ANDREI, Ionica CIRCIU   +2 more
doaj   +1 more source

Large-Eddy Simulation of combustion instabilities in a variable-length combustor. [PDF]

, 2013
This article presents a simulation of a model rocket combustor with continuously variable acoustic properties thanks to a variable-length injector tube. Fully compressible Large-Eddy Simulations are conducted using the AVBP code.
Garby, Romain, Laurent Selle, Thierry Poinsot, Romain Garby, Selle, Laurent, Poinsot, Thierry   +5 more
core   +1 more source

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

Energies, 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, Jiwoong Jeong, Kyungin Cho, Sangseok Yu   +3 more
doaj   +1 more source