Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 6341-6360 of 9564
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INCONEL® Alloy 783: An Oxidation-Resistant, Low Expansion Superalloy for Gas Turbine Applications
(The American Society of Mechanical Engineers (ASME), 1998)INCONEL® alloy 783 is an oxidation-resistant low coefficient of thermal expansion (low CTE) superalloy developed for gas turbine applications. Turbine efficiency can be increased through the ... -
Reliability of a Conceptual Ceramic Gas Turbine Component Subjected to Static and Transient Thermomechanical Loading
(The American Society of Mechanical Engineers (ASME), 1998)A three year program to evaluate the feasibility of using monolithic silicon nitride ceramic components in gas turbines was conducted. The use of ceramic materials may enable design of turbine ... -
Biomass Gasification for Gas Turbine-Based Power Generation
(The American Society of Mechanical Engineers (ASME), 1998)The Biomass Power Program of the US Department of Energy (DOE) has as a major goal the development of cost-competitive technologies for the production of power from renewable biomass crops. ... -
The Development of the Whittle Turbojet
(The American Society of Mechanical Engineers (ASME), 1998)Sir Frank Whittle passed away on August 8, 1996, at the age of 89, in Maryland. His work in developing the turbojet can truly be said to represent one of the greatest mechanical engineering ... -
Development of a Hydrogen-Fueled Combustion Turbine Cycle for Power Generation
(The American Society of Mechanical Engineers (ASME), 1998)Consideration of a hydrogen based economy is attractive because it allows energy to be transported and stored at high densities and then transformed into useful work in pollution-free turbine ... -
Investigation of Vapor-Phase Lubrication in a Gas Turbine Engine
(The American Society of Mechanical Engineers (ASME), 1998)The liquid oil lubrication system of current aircraft jet engines accounts for approximately 10–15 percent of the total weight of the engine. It has long been a goal of the aircraft gas ... -
A New Criterion for Judging SI Engine In-Cylinder Pressure Development for Its Effect on Combustion Noise
(The American Society of Mechanical Engineers (ASME), 1998)The effect of engine in-cylinder pressure development on combustion noise is studied based on measured pressure traces and the attenuation-curve theory by Austen and Priede (1958). A new criterion ... -
Development of a Dynamic Model for Predicting the Rigid and Flexible Motions of the Crank Slider Mechanism
(The American Society of Mechanical Engineers (ASME), 1998)A continuous model is developed to predict the rigid and flexible motions of the piston assembly/connecting rod/crankshaft mechanism for a single cylinder engine. The model accounts for the ... -
Oil Layer as Source of Hydrocarbon Emissions in SI Engines
(The American Society of Mechanical Engineers (ASME), 1998)The role of lubrication oil film on the cylinder liner as a source of hydrocarbon emissions in spark-ignition engines is assessed. First, the “source strength” is examined via an analytical ... -
Effects of Temperature on Formation of Insolubles in Aviation Fuels
(The American Society of Mechanical Engineers (ASME), 1998)Ten aviation turbine fuels (five Jet-A fuels, three JP-5, one JP-8, and one JPTS) were stressed at 185 and 225°C in a single-pass heat exchanger. On the basis of several criteria applied ... -
Analysis of the Temperature Profile of Ceramic Composite Materials Exposed to Combined Conduction–Radiation Between Concentric Cylinders
(The American Society of Mechanical Engineers (ASME), 1998)A numerical study is made of the thermal characteristics of semitransparent materials exposed to simultaneous conduction and radiation between concentric cylinders. For extremely high-temperature ... -
Coating Life Prediction Under Cyclic Oxidation Conditions
(The American Society of Mechanical Engineers (ASME), 1998)The hot gas path section components of land based turbines require materials with superior mechanical properties and good hot corrosion and oxidation resistance. These components are generally ... -
Experience in Applying the New UK Procedure for Creep Rupture Data Assessment to Gas Turbine Materials
(The American Society of Mechanical Engineers (ASME), 1998)A new procedure being developed in British Standards for the assessment of creep-rupture data is described and evaluated with trial data sets of gas turbine blading materials. The procedure is ... -
Direct Prediction of the Effects of Mistuning on the Forced Response of Bladed Disks
(The American Society of Mechanical Engineers (ASME), 1998)In this paper, a novel approach to determine reliable estimates of the moments of the steady-state resonant response of a randomly mistuned bladed disk is presented, and the use of these ... -
Reducing Lateral Vibrations of a Rotor Passing Through Critical Speeds by Acceleration Scheduling
(The American Society of Mechanical Engineers (ASME), 1998)A method is presented for reducing the lateral response of an imbalanced rotor accelerating or decelerating through its first lateral bending critical speed by using a variable acceleration rate. ... -
Rotodynamic Modeling of an Actively Controlled Magnetic Bearing Gas Turbine Engine
(The American Society of Mechanical Engineers (ASME), 1998)This paper summarizes the development of a finite element rotordynamic solution used in a closed loop simulation for a magnetic bearing rotor system in a gas, turbine engine. A magnetic bearing ... -
Fundamental Heat Transfer Experiments of Heat Pipes for Turbine Cooling
(The American Society of Mechanical Engineers (ASME), 1998)Fundamental heat transfer experiments were carried out for three kinds of heat pipes that may be applied to turbine cooling in future aero-engines. In the turbine cooling system with a heat ... -
The Diesel Engine for Cars—Is There a Future?
(The American Society of Mechanical Engineers (ASME), 1998)The diesel engine is known as the most fuel efficient combustion engine. Its acceptance for use in passengers cars, however, varies geographically. Today, the diesel car plays an important role ... -
The Effect of Misalignment on Rotor Vibrations
(The American Society of Mechanical Engineers (ASME), 1998)Rotors with three or more fluid-film bearings (or fluid seals) have “redundant” supports, and, therefore, interdependent bearing loads that are generally unknown both in magnitude and direction. ... -
Development and Turbine Engine Performance of Three Advanced Rhenium Containing Superalloys for Single Crystal and Directionally Solidified Blades and Vanes
(The American Society of Mechanical Engineers (ASME), 1998)Turbine inlet temperatures over the next few years will approach 1650°C (3000°F) at maximum power for the latest large commercial turbofan engines, resulting in high fuel efficiency and ...