Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5301-5320 of 9564
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Tuning Your Fuel-Gas Delivery System
(The American Society of Mechanical Engineers (ASME), 2006)Saudi Aramco has focused more attention in recent years on fuel-gas conditioning for land-based industrial and aeroderivative combustion gas turbines (CGTs). Hydrocarbon dew points and entrained ... -
Bump-Type Foil Bearing Structural Stiffness: Experiments and Predictions
(The American Society of Mechanical Engineers (ASME), 2006)Gas foil bearings (FB) satisfy many of the requirements noted for novel oil-free turbomachinery. However, FB design remains largely empirical, in spite of successful commercial applications. The ... -
A Fully Integrated Approach to Component Zooming Using Computational Fluid Dynamics
(The American Society of Mechanical Engineers (ASME), 2006)Background . This study focuses on a simulation strategy that will allow the performance characteristics of an isolated gas turbine engine component, resolved from a detailed, high-fidelity ... -
Comparison of Rotordynamic Analysis Predictions With the Test Response of Simple Gas Hybrid Bearings for Oil Free Turbomachinery
(The American Society of Mechanical Engineers (ASME), 2006)Current applications of gas film bearings in high-speed oil-free microturbomachinery (<0.4 MW) require calibrated predictive tools to successfully deploy their application to mass-produced systems, ... -
Aerodynamic Instability and Life-Limiting Effects of Inlet and Interstage Water Injection Into Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2006)Gas turbine power enhancement technologies, such as inlet fogging, interstage water injection, saturation cooling, inlet chillers, and combustor injection, are being employed by end users without ... -
Brush Seal Temperature Distribution Analysis
(The American Society of Mechanical Engineers (ASME), 2006)Brush seals are designed to survive transient rotor rubs. Inherent brush seal flexibility reduces frictional heat generation. However, high surface speeds combined with thin rotor sections may ... -
Experimental Response of Simple Gas Hybrid Bearings for Oil-Free Turbomachinery
(The American Society of Mechanical Engineers (ASME), 2006)Gas film bearings offer unique advantages enabling successful deployment of high-speed microturbomachinery (<0.4 MW). Current applications encompass micropower generators, air cycle machines and ... -
Remaining Life Prediction of Thermal Barrier Coatings Based on Photoluminescence Piezospectroscopy Measurements
(The American Society of Mechanical Engineers (ASME), 2006)Nondestructive determination of the remaining life of thermal barrier coatings (TBCs) is highly desirable for components removed from service engines. Remaining life predictions for EB-PVD/Pt-Al ... -
Effects of Manufacturing Tolerances on Regenerative Exchanger Number of Transfer Units and Entropy Generation
(The American Society of Mechanical Engineers (ASME), 2006)A prime concern with the design of ultra-compact heat exchangers is the impact on performance of flow channel variations due to flow channel hydraulic diameter variations caused by manufacturing ... -
The Influence of In Situ Reheat on Turbine-Combustor Performance
(The American Society of Mechanical Engineers (ASME), 2006)This paper presents a numerical and experimental investigation of the in situ reheat necessary for the development of a turbine-combustor. The flow and combustion were modeled by the Reynolds-averaged ... -
Design Study of a Humidification Tower for the Advanced Humid Air Turbine System
(The American Society of Mechanical Engineers (ASME), 2006)The advanced humid air turbine (AHAT) system, which can be equipped with a heavy-duty, single-shaft gas turbine, aims at high efficiency equal to that of the HAT system. Instead of an ... -
Enhancing Flow Field Measurements Through Adaptive Multidimensional Data Sampling
(The American Society of Mechanical Engineers (ASME), 2006)A way to gain insight into the flow field conditions in turbomachinery is by carrying out a series of point measurements in a cross section of the flow, for example, with a miniature multihole ... -
Safe Dynamic Operation of a Simple SOFC/GT Hybrid System
(The American Society of Mechanical Engineers (ASME), 2006)The current work shall prove the feasibility and show methods to safely operate a simple SOFC/GT hybrid system under part-load and load change. Dynamic and steady state studies on a detailed ... -
A Study on Transient Performance Characteristics of the Canard Rotor Wing Type Unmanned Aerial Vehicle Propulsion System During Flight Mode Transition
(The American Society of Mechanical Engineers (ASME), 2006)A propulsion system of the CRW (Canard rotor wing) type UAV (unmanned aerial vehicle) was composed of the turbojet engine, exhaust nozzles (including some tip jet nozzles and a main nozzle), ... -
Chemical-Looping Combustion for Combined Cycles With CO2 Capture
(The American Society of Mechanical Engineers (ASME), 2006)Chemical-Looping Combustion (CLC) is a process where fuel oxidation is carried out through an intermediate agent—a metal oxide—circulated across two fluidized bed reactors: a reduction reactor, ... -
GTPOM: Thermo-Economic Optimization of Whole Gas Turbine Plant
(The American Society of Mechanical Engineers (ASME), 2006)Trends towards distributed power generation and the deregulation of energy markets are increasing the requirement for software tools that optimize power generation plant design and operation. In ... -
Study on Biomass Pyrolysis Kinetics
(The American Society of Mechanical Engineers (ASME), 2006)Pyrolysis is the most fundamental process in thermal chemical conversion of biomass, and pyrolysis kinetic analysis is valuable for the in-depth exploration of process mechanisms. On the basis ... -
A Modular Code for Real Time Dynamic Simulation of Gas Turbines in Simulink
(The American Society of Mechanical Engineers (ASME), 2006)A high-fidelity real-time simulation code based on a lumped, nonlinear representation of gas turbine components is presented. The code is a general-purpose simulation software environment useful ... -
A High-Pressure Droplet Model for Spray Simulations
(The American Society of Mechanical Engineers (ASME), 2006)Droplet vaporization models that are currently employed in simulating sprays are based on a quasisteady, low-pressure formulation. These models do not adequately represent many high-pressure effects, ... -
A Numerical Simulation Capability for Analysis of Aircraft Inlet-Engine Compatibility
(The American Society of Mechanical Engineers (ASME), 2006)Two primary aircraft propulsion subsystems are the inlet and the engine. Traditionally these subsystems have been designed, analyzed, and tested as isolated systems. The interaction between the ...