Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5561-5580 of 9564
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Millimeter-Scale, Micro-Electro-Mechanical Systems Gas Turbine Engines
(The American Society of Mechanical Engineers (ASME), 2004)The confluence of market demand for greatly improved compact power sources for portable electronics with the rapidly expanding capability of micromachining technology has made feasible the development ... -
Reducing Grid Dependency in Droplet Collision Modeling
(The American Society of Mechanical Engineers (ASME), 2004)Droplet collision models have been criticized for creating large mesh dependency in spray calculations. These numerical errors are very troublesome; they behave erratically and interfere with the ... -
The Selective Non-Catalytic Removal (SNCR) of Nitric Oxides From Engine Exhaust Streams: Comparison of Three Processes
(The American Society of Mechanical Engineers (ASME), 2004)Three processes for the selective non-catalytic removal (SNCR) of nitric oxides from engine exhaust gases are compared. The three processes are similar but each uses a different chemical agent: ... -
Large Eddy Simulation of the Anti-Erosion Characteristics of the Ribbed-Bend in Gas-Solid Flows
(The American Society of Mechanical Engineers (ASME), 2004)In order to find out the ribs with the best anti-erosion efficiency, the erosion effects in three 90° duct bend gas-solid flows with different ribs are investigated and compared with that ... -
IN MEMORIAM: Professor Arthur H. Lefebvre (1923–2003)
(The American Society of Mechanical Engineers (ASME), 2004)Grahic Jump Location -
A Mathematical Model for Schlieren and Shadowgraph Images of Transient Expanding Spherical Thin Flames
(The American Society of Mechanical Engineers (ASME), 2004)Optical behavior of spherical flames is investigated using both Schlieren and shadowgraph methods. A mathematical model has been developed to predict the intensity of refracted light beams ... -
Development of the Radially Stratified Flame Core Low NOx Burner: From Fundamentals to Industrial Applications
(The American Society of Mechanical Engineers (ASME), 2004)Research and development of the low NOx radially stratified flame core (RSFC) burner is followed from its fundamental concept through prototype burner design, pilot scale experiments at M.I.T. ... -
Computational Modeling of Natural Gas Injection in a Large Bore Engine
(The American Society of Mechanical Engineers (ASME), 2004)The topic of this paper is the computational modeling of gas injection through various poppet valve geometries in a large bore engine. The objective of the paper is to contribute to a better ... -
Strategies for Reduced NOx Emissions in Pilot-Ignited Natural Gas Engines
(The American Society of Mechanical Engineers (ASME), 2004)The performance and emissions of a single-cylinder natural gas fueled engine using a pilot ignition strategy have been investigated. Small diesel pilots (2–3% on an energy basis), when used to ... -
Rotor Balancing Without Trial Weights
(The American Society of Mechanical Engineers (ASME), 2004)The traditional balancing methods using trial or calibration weights are quite effective, yet too many trials may result in a lengthy balancing process. It had been suggested in the literature ... -
A Characteristic Parameter to Estimate the Optimum Counterweight Mass of Symmetric In-Line Engines
(The American Society of Mechanical Engineers (ASME), 2004)Dimensionless relationships that estimate the maximum bearing load of two symmetric in-line engines have been developed. These relationships were empirically determined by averaging the maximum ... -
Nonparametric Modeling of Random Uncertainties for Dynamic Response of Mistuned Bladed Disks
(The American Society of Mechanical Engineers (ASME), 2004)The random character of blade mistuning is a motivation to construct probability models of random uncertainties. Recently, a new approach known as a nonparametric model of random uncertainties, ... -
A Pareto-Based Genetic Algorithm Search Approach to Handle Damped Natural Frequency Constraints in Turbo Generator Rotor System Design
(The American Society of Mechanical Engineers (ASME), 2004)The detailed design of a turbo generator rotor system is highly constrained by feasible regions for the damped natural frequencies of the system. A major problem for the designer is to find ... -
High-Temperature Fatigue Properties of Single Crystal Superalloys in Air and Hydrogen
(The American Society of Mechanical Engineers (ASME), 2004)Hot section components in high-performance aircraft and rocket engines are increasingly being made of single crystal nickel superalloys such as PWA1480, PWA1484, CMSX-4, and Rene N-4 as these ... -
Lateral Forces From Single Gland Rotor Labyrinth Seals in Turbines
(The American Society of Mechanical Engineers (ASME), 2004)Even though interest in labyrinth seal flows has increased recently, an analytical model capable of predicting turbine flow response to labyrinth seals is still lacking. Therefore, this paper ... -
Computations of Air/Fuel Preparation Process in a Port-Injected Spark-Ignition Engine During Cold-Starting Phase
(The American Society of Mechanical Engineers (ASME), 2004)A numerical study has been performed of the air/fuel preparation process in a cold-starting port-injected spark-ignition engine. The latest models were implemented for spray impingement and ... -
Inlet Fogging of Gas Turbine Engines—Part I: Fog Droplet Thermodynamics, Heat Transfer, and Practical Considerations
(The American Society of Mechanical Engineers (ASME), 2004)The inlet fogging of gas turbine engines for power augmentation has seen increasing application over the past decade yet not a single technical paper treating the physics and engineering of ... -
Inlet Fogging of Gas Turbine Engines—Part III: Fog Behavior in Inlet Ducts, Computational Fluid Dynamics Analysis, and Wind Tunnel Experiments
(The American Society of Mechanical Engineers (ASME), 2004)The inlet fogging of gas turbine engines for power augmentation has seen increasing application over the past decade yet not a single technical paper treating the physics and engineering of ... -
Siemens Westinghouse Advanced Turbine Systems Program Final Summary
(The American Society of Mechanical Engineers (ASME), 2004)This paper summarizes achievements in the Siemens Westinghouse Advanced Turbine Systems (ATS) Program. The ATS Program, co-funded by the U.S. Department of Energy, Office of Fossil Energy, was ... -
Technical and Tariff Scenarios Effect on Microturbine Trigenerative Applications
(The American Society of Mechanical Engineers (ASME), 2004)The paper considers the use of gas fired micro turbine generators (MTG) for trigeneration (combined production of electricity, heating, and cooling) applications in tertiary buildings. The importance ...