Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5621-5640 of 9564
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Application of Genetic Algorithms in the Engine Technology Selection Process
(The American Society of Mechanical Engineers (ASME), 2004)The objective of this paper is to demonstrate the application of genetic algorithms to the engine technology selection process. The “technology identification, evaluation, and selection” method ... -
Thermodynamic Property Models for Moist Air and Combustion Gases
(The American Society of Mechanical Engineers (ASME), 2003)A new model for the prediction of caloric properties of moist air and combustion gases has been developed. The model very accurately predicts ideal gas caloric properties of undissociated gas ... -
Development of Chemically Recuperated Micro Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2003)Micro gas turbines (MGTs) are subject to certain problems, notably low thermal efficiency of the system and high emission including NOx. The chemically recuperated gas turbine (CRGT) system ... -
Experimental and Theoretical Optimization of Combustion Chamber and Fuel Distribution for the Low Emission Direct-Injection Diesel Engine
(The American Society of Mechanical Engineers (ASME), 2003)Effects of combustion chamber geometry and initial mixture distribution on the combustion process were investigated in a direct-injection diesel engine. In the engine experiment, a high squish ... -
Direct Constrained Computational Fluid Dynamics Based Optimization of Three-Dimensional Blading for the Exit Stage of a Large Power Steam Turbine
(The American Society of Mechanical Engineers (ASME), 2003)The paper describes results of direct constrained optimization using Nelder-Mead’s method of deformed polyhedron and a Reynolds-averaged Navier-Stokes (RANS) solver to optimize the shape of ... -
Schlieren Observation of Spark-Ignited Premixed Charge Combustion Phenomena Using a Transparent Collimating Cylinder Engine
(The American Society of Mechanical Engineers (ASME), 2003)The schlieren photographs of in-cylinder processes in a spark-ignited premixed charge gasoline engine were observed via a transparent collimating cylinder and were presented in comparison with a ... -
CO2 Emission Abatement From Fossil Fuel Power Plants by Exhaust Gas Treatment
(The American Society of Mechanical Engineers (ASME), 2003)In this paper thermodynamical and economic analyses of fossil-fuel-fired power plants, equipped with systems for CO2 recovery, are presented. The investigation has been developed with reference ... -
Exhaust Emission Deterioration and Combustion Chamber Deposit Composition Over the Life Cycle of Small Utility Engines
(The American Society of Mechanical Engineers (ASME), 2003)In this study, a laboratory test procedure to mimic the life cycle of the small air-cooled engines in field operation is developed. A characterization of exhaust emissions over the life cycle ... -
The Effect of Adding Oxygenated Compounds to Gasoline on Automotive Exhaust Emissions
(The American Society of Mechanical Engineers (ASME), 2003)In the present work, the effect of adding ethanol or methyl tertiary butyl ether (MTBE) to gasoline on the regulated and unregulated emissions from an internal combustion engine with a typical ... -
Predicted Effects of Bearing Sump and Injection Pressures on Oil Labyrinth Leakage
(The American Society of Mechanical Engineers (ASME), 2003)New information and an enhanced understanding concerning the oil vapor contaminant leaking through nonflooded oil labyrinth seals are provided. The results were obtained using a finite volume ... -
Design Development of Unitized Titanium Structure
(The American Society of Mechanical Engineers (ASME), 2003)Traditional airframe primary structure is fabricated from wrought product forms that are transformed by machining, forming, and joining into structural components. These individual parts are assembled ... -
Investigation of Flow in a Steam Turbine Exhaust Hood With/Without Turbine Exit Conditions Simulated
(The American Society of Mechanical Engineers (ASME), 2003)Experimental and numerical investigations for the flow in an exhaust hood model of large steam turbines have been carried out in order to understand the complex three-dimensional flow pattern ... -
Integrated Vehicle Comparison of Turbo-Ramjet Engine and Pulsed Detonation Engine
(The American Society of Mechanical Engineers (ASME), 2003)The pulsed detonation engine (PDE) is a unique propulsion system that uses the pressure rise associated with detonations to efficiently provide thrust. A study was conducted under the direction ... -
Inlet Fogging of Gas Turbine Engines Detailed Climatic Analysis of Gas Turbine Evaporation Cooling Potential in the USA
(The American Society of Mechanical Engineers (ASME), 2003)Inlet fogging of gas turbine engines has attained considerable popularity due to the ease of installation and the relatively low first cost compared to other inlet cooling methods. With increasing ... -
Selecting and Developing Advanced Alloys for Creep-Resistance for Microturbine Recuperator Applications1
(The American Society of Mechanical Engineers (ASME), 2003)Recuperators are considered essential hardware to achieve the efficiencies desired for advanced microturbines. Compact recuperator technologies, including primary surface, plate and fin, and spiral, ... -
High-Temperature Fatigue/Creep/Environment Interactions in Compressor Alloys
(The American Society of Mechanical Engineers (ASME), 2003)The high-temperature fatigue response of titanium and nickel alloys destined for high-performance gas turbine applications is considered with particular emphasis given to the role of creep and ... -
Development of a Temporally Modulated Fuel Injector With Controlled Spray Dynamics
(The American Society of Mechanical Engineers (ASME), 2003)It is now well established that combustion instability in liquid-fueled gas turbines can be controlled through the use of active fuel modulation. What is less clear is the mechanism by which ... -
Enhancement of Methane-Air Mixing Using Shock and Expansion Waves
(The American Society of Mechanical Engineers (ASME), 2003)A unified model of gaseous fuel and air mixing is applied here to study the use of shock waves for enhancement of mixing between methane and air. The model uses fuel mass fraction within ... -
Integrating Subsystems and Engine System Assessments
(The American Society of Mechanical Engineers (ASME), 2003)In the past, system and subsystem level assessments for propulsion systems have been a long and drawn out serial process, typically taking several months to a year or more. Data exchange from ... -
Failure Analysis of Inlet Guide Vanes
(The American Society of Mechanical Engineers (ASME), 2003)The common failure modes of variable inlet guide vanes (VIGVs or IGVs) on industrial gas turbines are reviewed. These mechanisms include corrosion, cracking, and wear of the IGVs, their bushings ...