Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 4541-4560 of 9564
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On the Adequacy of Chemiluminescence as a Measure for Heat Release in Turbulent Flames With Mixture Gradients
(The American Society of Mechanical Engineers (ASME), 2010)The determination of the heat release in technical flames is commonly done via bandpass filtered chemiluminescence measurements in the wavelength range of OH∗ or CH∗ radicals, which are supposed ... -
Interaction Between the Acoustic Pressure Fluctuations and the Unsteady Flow Field Through Circular Holes
(The American Society of Mechanical Engineers (ASME), 2010)Gas turbine combustion systems are prone to thermo-acoustic instabilities, and this is particularly the case for new low emission lean burn type systems. The presence of such instabilities is ... -
Gas Turbine Engine Emissions—Part I: Volatile Organic Compounds and Nitrogen Oxides
(The American Society of Mechanical Engineers (ASME), 2010)The potential human health and environmental impacts of aircraft gas turbine engine emissions during normal airport operation are issues of growing concern. During the JETS/Aircraft Particle ... -
Impact of Swirl Fluctuations on the Flame Response of a Perfectly Premixed Swirl Burner
(The American Society of Mechanical Engineers (ASME), 2010)Combustion instabilities represent a long known problem in combustion technology. The complex interactions between acoustics and turbulent swirling flames are not fully understood yet, making it ... -
A Method to Determine Fuel Transport Dynamics Model Parameters in Port Fuel Injected Gasoline Engines During Cold Start and Warm-Up Conditions
(The American Society of Mechanical Engineers (ASME), 2010)In order to meet stringent emission standards, it is essential to have a precise control of air-fuel ratio (AFR) under cold start and warm-up conditions. This requires an understanding of the ... -
Gas Turbines Fired With Biomass Pyrolysis Syngas: Analysis of the Overheating of Hot Gas Path Components
(The American Society of Mechanical Engineers (ASME), 2010)Alternative resources, such as biomass, and municipal and industrial waste are being considered as a source for the production of syngas to replace natural gas as a power turbine fuel. Pyrolysis ... -
Safety Features of a Pressurized Water Reactor Utilizing Coated Fuel Particles With a Novel Composition
(The American Society of Mechanical Engineers (ASME), 2010)In this research paper, a safety analysis has been carried out for the conceptual design of a compact sized pressurized water reactor (PWR) core that utilizes a tristructural-isotropic (TRISO) ... -
The Development of Impact Analysis Methodology for CEDM Missile of APR1400
(The American Society of Mechanical Engineers (ASME), 2010)An integrated head assembly (IHA) is equipped with the missile shield to absorb the missile energy from postulated control element drive mechanism (CEDM) missile during the dynamic event of ... -
Bayesian Analysis of Piping Leak Frequency Using OECD/NEA Data
(The American Society of Mechanical Engineers (ASME), 2010)The estimation of piping failure frequency is an important task to support the probabilistic risk analysis and risk-informed in-service inspection of nuclear power plant systems. This paper ... -
Modeling and Model Updating of Torsional Behavior of an Industrial Steam Turbo Generator
(The American Society of Mechanical Engineers (ASME), 2010)The methods employed to perform rotordynamics calculations of industrial machines are rather standard and usually allow forecasting the dynamic behavior of the considered machines. Anyhow, in some ... -
Three-Dimensional Simulation of Gaseous Fuel Injection Through a Hybrid Approach
(The American Society of Mechanical Engineers (ASME), 2010)Direct injection of gaseous fuel has emerged to be a high potential strategy to tackle both environmental and fuel economy requirements. However, since the electronic gaseous injection technology ... -
Lean-Burn Stationary Natural Gas Engine Operation With a Prototype Laser Spark Plug
(The American Society of Mechanical Engineers (ASME), 2010)An end pumped passively Q-switched laser igniter was developed to meet the ignition system needs of large bore lean burn stationary natural gas engines. The laser spark plug used an optical ... -
A Continuous Multicomponent Fuel Flame Propagation and Chemical Kinetics Model
(The American Society of Mechanical Engineers (ASME), 2010)A continuous multicomponent fuel flame propagation and chemical kinetics model has been developed. In the multicomponent fuel model, the theory of continuous thermodynamics was used to model the ... -
Material Properties’ Influence in Fuel-Coolant Interaction Codes
(The American Society of Mechanical Engineers (ASME), 2010)The melt droplets’ crust formation modeling, which is used in current fuel coolant interaction (FCI) codes, is rather basic. In the paper the development of the melt droplet heat transfer ... -
Reduction in NOx and CO Emissions in Stoichiometric Diesel Combustion Using a Three-Way Catalyst
(The American Society of Mechanical Engineers (ASME), 2010)Experimental and numerical studies were performed to investigate the simultaneous reduction in NOx and CO for stoichiometric diesel combustion with a three-way catalyst. A single-cylinder engine ... -
Engine Rapid Shutdown: Experimental Investigation on the Cooling System Transient Response
(The American Society of Mechanical Engineers (ASME), 2010)Experimental measurements have been taken on a production four-cylinder, multipoint (fuel) injection spark-ignition engine, 1.2 dm3 displacement with a four-valve per cylinder aluminum head, and a ... -
Preliminary Testing of Metal-Based Thermal Barrier Coating in a Spark-Ignition Engine
(The American Society of Mechanical Engineers (ASME), 2010)A novel metal-based thermal barrier coating was tested in a spark-ignition engine. The coating was applied to the surface of aluminum plugs and exposed to in-cylinder conditions through ports ... -
Combining Instantaneous Temperature Measurements and CFD for Analysis of Fuel Impingement on the DISI Engine Piston Top
(The American Society of Mechanical Engineers (ASME), 2010)A two-pronged experimental and computational study was conducted to explore the formation, transport, and vaporization of a wall film located at the piston surface within a four-valve, pent-roof, ... -
NOx Reduction by Air-Side Versus Fuel-Side Dilution in Hydrogen Diffusion Flame Combustors
(The American Society of Mechanical Engineers (ASME), 2010)Lean-direct-injection (LDI) combustion is being considered at the National Energy Technology Laboratory as a means to attain low NOx emissions in a high-hydrogen gas turbine combustor. Integrated ... -
Analysis of the Effects of Pulsations on the Operational Stability of Centrifugal Compressors in Mixed Reciprocating and Centrifugal Compressor Stations
(The American Society of Mechanical Engineers (ASME), 2010)Mixed operation with both centrifugal and reciprocating compressors in a compression plant poses significant operational challenges as pressure pulsations and machine mismatches lead to centrifugal ...