Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5401-5420 of 9564
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Investigation of Brush Seal Flow Characteristics Using Bulk Porous Medium Approach
(The American Society of Mechanical Engineers (ASME), 2005)The flow behavior through a brush seal has been investigated by developing a flow analysis procedure with a porous medium approach. In order to increase the brush seal performance and use at ... -
Calculating the Eigenfrequency of Rotating Acoustic Annulus Inside Labyrinth Seals of Turbomachines
(The American Society of Mechanical Engineers (ASME), 2005)This brief note describes a method for calculating the eigenfrequencies of a rotating acoustic air column inside labyrinth seals in turbomachinery. The method is applied to nonrotating air columns ... -
The Impact of Oil and Sealing Air Flow, Chamber Pressure, Rotor Speed, and Axial Load on the Power Consumption in an Aeroengine Bearing Chamber
(The American Society of Mechanical Engineers (ASME), 2005)Trends in aircraft engines have dictated high speed rolling element bearings up to 3 million DN or more with the consequence of having high amounts of heat rejection in the bearing chambers ... -
Effects of Pore Size Variations on Regenerative Wheel Performance
(The American Society of Mechanical Engineers (ASME), 2005)Manufacturing tolerances usually cause the air flow channel pore sizes to have a random variation in the matrices of regenerative wheels. The effects of random pore size distribution on pressure ... -
A Multistage Compressor Test Facility: Uncertainty Analysis and Preliminary Test Results
(The American Society of Mechanical Engineers (ASME), 2005)A multistage compressor test facility, fully instrumented with a dedicated data acquisition and processing system, has been developed to conduct experimental research work at the University of ... -
Orifice Diameter Effects on Diesel Fuel Jet Flame Structure
(The American Society of Mechanical Engineers (ASME), 2005)The effects of orifice diameter on several aspects of diesel fuel jet flame structure were investigated in a constant-volume combustion vessel under heavy-duty direct-injection (DI) diesel engine ... -
Experimental Investigation of Oil Accumulation in Second Land of Internal Combustion Engines
(The American Society of Mechanical Engineers (ASME), 2005)Blowback of engine oil suspended in combustion gases, when the gas flows from the piston second land back into the combustion chamber, is believed to contribute to oil consumption and hydrocarbon ... -
The Effect of Turbine Blade Cooling on the Cycle Efficiency of Gas Turbine Power Cycles
(The American Society of Mechanical Engineers (ASME), 2005)A thermodynamic cycle analysis computer code for the performance prediction of cooled gas turbines has been used to calculate the efficiency of plants with varying combustor outlet temperature, ... -
Main Bearing Friction and Thermal Interaction During the Early Seconds of Cold Engine Operation
(The American Society of Mechanical Engineers (ASME), 2005)Motoring tests have been carried out on an unloaded crankshaft to examine friction levels and the influence of local thermal conditions in and around the main bearings, at speeds covering the ... -
A Study of Humidified Gas Turbines for Short-Term Realization in Midsized Power Generation—Part II: Intercooled Cycle Analysis and Final Economic Evaluation
(The American Society of Mechanical Engineers (ASME), 2005)Humidified gas turbine (HGT) cycles are a group of advanced gas turbine cycles that use water–air mixtures as the working media. In this article, three known HGT configurations are examined ... -
Systematic Assessment of Combustion Turbine Inlet Air-Cooling Techniques
(The American Society of Mechanical Engineers (ASME), 2005)The current study is centered on assessing the benefits of incorporating combustion turbine inlet air-cooling systems into a reference combustion turbine plant, which is based on a simple cycle ... -
A Study of Humidified Gas Turbines for Short-Term Realization in Midsized Power Generation—Part I: Nonintercooled Cycle Analysis
(The American Society of Mechanical Engineers (ASME), 2005)Humidified Gas Turbine (HGT) cycles are a group of advanced gas turbine cycles that use water-air mixtures as the working media. In this article, three known HGT configurations are examined ... -
Comparison of Linear and Nonlinear Gas Turbine Performance Diagnostics
(The American Society of Mechanical Engineers (ASME), 2005)The features of linear performance diagnostic methods are discussed, in comparison to methods based on full nonlinear calculation of performance deviations, for the purpose of condition monitoring ... -
Prediction of the Transient Thermodynamic Response of a Closed-Cycle Regenerative Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2005)Instantaneous-response and transient-flow component models for the prediction of the transient response of gas turbine cycles are presented. The component models are based on applications of the ... -
Advanced Zero Emissions Gas Turbine Power Plant
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Assessment of Rich-Burn, Quick-Mix, Lean-Burn Trapped Vortex Combustor for Stationary Gas Turbines
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Rich-Catalytic Lean-Burn Combustion for Low-Single-Digit NOx Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2005)A new rich-catalytic lean-burn combustion concept (trademarked by PCI as RCL) was tested at industrial gas turbine conditions, in Solar Turbines’ high-pressure (17 atm) combustion rig and in a ... -
Performance Comparison of Internal Reforming Against External Reforming in a Solid Oxide Fuel Cell, Gas Turbine Hybrid System
(The American Society of Mechanical Engineers (ASME), 2005)Solid Oxide Fuel Cell (SOFC) developers are presently considering both internal and external reforming fuel cell designs. Generally, the endothermic reforming reaction and excess air through the ... -
Transfer Function Calculations for Aeroengine Combustion Oscillations
(The American Society of Mechanical Engineers (ASME), 2005)Combustors with fuel-spray atomizers are particularly susceptible to a low-frequency oscillation at idle and subidle conditions. For aeroengine combustors, the frequency of this oscillation is ... -
Using Hydrogen as Gas Turbine Fuel
(The American Society of Mechanical Engineers (ASME), 2005)This paper addresses the possibility to burn hydrogen in a large size, heavy-duty gas turbine designed to run on natural gas as a possible short-term measure to reduce greenhouse emissions of ...