Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5701-5720 of 9564
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Development of Micro-Diesel Injector Nozzles via Microelectromechanical Systems Technology and Effects on Spray Characteristics
(The American Society of Mechanical Engineers (ASME), 2003)Micromachined planar orifice nozzles have been developed using MEMS (micro-electro-mechanical systems) technology and tested with commercially produced diesel injection systems. Such a system, properly ... -
Combustion in Gas Fueled Compression: Ignition Engines of the Dual Fuel Type
(The American Society of Mechanical Engineers (ASME), 2003)In the dual fuel engine much of the energy release comes from the combustion of the gaseous fuel while only a small amount of diesel liquid fuel provides ignition through timed cylinder ... -
Statistical Correlation Between the Crankshaft’s Speed Variation and Engine Performance—Part I: Theoretical Model
(The American Society of Mechanical Engineers (ASME), 2003)The goal of this two-part paper is to develop a methodology using the variation of the measured crankshaft speed to calculate the mean indicated pressure (MIP) of a multicylinder engine and ... -
Air Fuel Ratio Estimation Using In-Cylinder Pressure Frequency Analysis
(The American Society of Mechanical Engineers (ASME), 2003)This paper presents an original approach to estimate the air-fuel ratio (AFR) of the mixture that burned inside a given cylinder of a spark-ignited (SI) internal combustion engine, using the ... -
A Gas Turbine-Based Hybrid Vehicle—Part II: Technological and Configuration Issues
(The American Society of Mechanical Engineers (ASME), 2003)A hybrid propulsion system for a passenger car is described and its preliminary design and performance discussed. A gas turbine operating in a controlled on-off mode, a generator, a battery ... -
Wear Assessment in a Biodiesel Fueled Compression Ignition Engine
(The American Society of Mechanical Engineers (ASME), 2003)Biodiesel is prepared using linseed oil and methanol by the process of transesterification. Use of linseed oil methyl ester (LOME) in a compression ignition engine was found to develop a highly ... -
Effect of Fuel Injection Timing Relative to Ignition Timing on the Natural-Gas Direct-Injection Combustion
(The American Society of Mechanical Engineers (ASME), 2003)The effect of fuel injection timing relative to ignition timing on natural gas direct-injection combustion was studied by using a rapid compression machine (RCM). The ignition timing was fixed ... -
Statistical Correlation Between the Crankshaft’s Speed Variation and Engine Performance—Part II: Detection of Deficient Cylinders and Mean Indicated Pressure Calculation
(The American Society of Mechanical Engineers (ASME), 2003)The goal of this two-part paper is to develop a methodology using the variation of the measured crankshaft speed to calculate the mean indicated pressure (MIP) of a multicylinder engine and ... -
Numerical Study of Nonreacting Gas Turbine Combustor Swirl Flow Using Reynolds Stress Model
(The American Society of Mechanical Engineers (ASME), 2003)This paper presents recent research on the use of a Reynolds stress turbulence model (RSTM) for three-dimensional flowfield simulation inside gas turbine combustors. It intends to show the ... -
A Reduced-Order Model for Evaluating the Effect of Rotational Speed on the Natural Frequencies and Mode Shapes of Blades
(The American Society of Mechanical Engineers (ASME), 2003)A reduced-order model has been developed that can be used to accurately and quickly calculate the changes in the natural frequencies and mode shapes of a blade that are caused by centrifugal ... -
The Two-Flux Model Applied to Radiative Transfer and Forced Convection in the Laminar Boundary Layer on a Flat Plate
(The American Society of Mechanical Engineers (ASME), 2003)This study presents the analysis of the thermal boundary layer considering combined convection and radiation in an absorbing, emitting, and scattering medium flowing over a flat plate. At high ... -
Gas Turbine Engine Durability Impacts of High Fuel-Air Ratio Combustors—Part I: Potential for Secondary Combustion of Partially Reacted Fuel
(The American Society of Mechanical Engineers (ASME), 2003)Demand for greater engine efficiency and thrust-to-weight ratio has driven the production of aircraft engines with higher core temperatures and pressures. Such engines operate at higher fuel-air ... -
Gas Turbine Engine Durability Impacts of High Fuel-Air Ratio Combustors—Part II: Near-Wall Reaction Effects on Film-Cooled Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2003)As commercial and military aircraft engines approach higher total temperatures and increasing overall fuel-to-air ratios, the potential for significant chemical reactions on a film-cooled surface ... -
High Power Density Silicon Combustion Systems for Micro Gas Turbine Engines
(The American Society of Mechanical Engineers (ASME), 2003)As part of an effort to develop a microscale gas turbine engine for power generation and micropropulsion applications, this paper presents the design, fabrication, experimental testing, and ... -
Assessment of Current Turbine Engine High Cycle Fatigue Test Methods
(The American Society of Mechanical Engineers (ASME), 2003)Testing of turbine engine components to verify structural durability goals is performed in a variety of ways and at a variety of facilities. Further, methods used differ between engine companies ... -
Two-Dimensional Flow and NOx Emissions in Deflagrative Internal Combustion Wave Rotor Configurations
(The American Society of Mechanical Engineers (ASME), 2003)A wave rotor is proposed for use as a constant volume combustor. A novel design feature is investigated as a remedy for hot gas leakage, premature ignition, and pollutant emissions that are ... -
Reducing Lateral Vibration of a Rotor Passing Through Critical Speeds by Phase Modulating
(The American Society of Mechanical Engineers (ASME), 2003)A method is presented to reduce the lateral vibration amplitude of an unbalanced rotor accelerating or decelerating through its critical speed, by means of modulating the response phase with ... -
On-Line Fuel Deoxygenation for Coke Suppression
(The American Society of Mechanical Engineers (ASME), 2003)Fuel deoxygenation is being developed as a means for suppressing autoxidative coke formation in aircraft fuel systems, thereby increasing the exploitable cooling capacity of the fuel, enabling ... -
Flashback Limits for Combustion Induced Vortex Breakdown in a Swirl Burner
(The American Society of Mechanical Engineers (ASME), 2003)Flame flashback from the combustion chamber into the mixing zone limits the reliability of swirl stabilized lean premixed combustion in gas turbines. In a former study, the combustion induced ... -
Impact of Ethane and Propane Variation in Natural Gas on the Performance of a Model Gas Turbine Combustor
(The American Society of Mechanical Engineers (ASME), 2003)In the area of stationary power generation, there exists a growing interest in understanding the role that gaseous fuel composition plays on the performance of natural gas-fired gas turbine ...