Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 4641-4660 of 9564
-
Effect of Exhaust Gas Temperature Limits on the Peak Power Performance of a Turbocharged Gasoline Engine
(The American Society of Mechanical Engineers (ASME), 2010)Peak power of an engine is typically constrained by the maximum obtainable airflow. This constraint could arise directly from the airflow limitation imposed by the throttle restriction (typical ... -
Assessment of the Spent Life Fraction of Gas Turbine Blades by Coating Life Modeling and Photostimulated Luminescence Piezospectroscopy
(The American Society of Mechanical Engineers (ASME), 2010)This paper describes the application of a double-sided approach to assess the spent life fraction of thermal barrier coatings (TBCs) at local positions of ex-service blades with NiCoCrAlY-Re ... -
Effects of B20 on Emissions and the Performance of a Diesel Particulate Filter in a Light-Duty Diesel Engine
(The American Society of Mechanical Engineers (ASME), 2010)This paper compares 20% biodiesel (B20-choice white grease) fuel with baseline ultra low sulfur diesel (ULSD) fuel on the emissions and performance of a diesel oxidation catalyst (DOC) and ... -
Design and Analysis of an Intercooled Turbofan Engine
(The American Society of Mechanical Engineers (ASME), 2010)The performance of an intercooled turbofan engine is analyzed by multidisciplinary optimization. A model for making preliminary simplified analysis of the mechanical design of the engine is coupled ... -
Exhaust-Stream and In-Cylinder Measurements and Analysis of the Soot Emissions From a Common Rail Diesel Engine Using Two Fuels
(The American Society of Mechanical Engineers (ASME), 2010)The operation and emissions of a four cylinder, passenger car common-rail diesel engine operating with two different fuels was investigated on the basis of exhaust-stream and in-cylinder soot ... -
Numerical Prediction of Void Distribution in Two-Phase Turbulent Flow in a Subchannel
(The American Society of Mechanical Engineers (ASME), 2010)Numerical simulation code for predicting void distribution in two-phase turbulent flow in a subchannel was developed. The purpose is to obtain a profile of void distribution in the subchannel. ... -
Numerical Simulation of the Performance of a Sudden Expansion With Fence Viewed as a Diffuser in Low Reynolds Number Regime
(The American Society of Mechanical Engineers (ASME), 2010)In this paper, the results of numerical simulation on the performance of a sudden expansion with fence viewed as a diffuser are presented. The two-dimensional steady differential equations for ... -
Life Prediction Method of CC and DS Ni Base Superalloys Under High Temperature Biaxial Fatigue Loading
(The American Society of Mechanical Engineers (ASME), 2010)Polycrystalline conventional casting (CC) and directionally solidified (DS) Ni base superalloys are widely used as gas turbine blade materials. It was reported that the surface of a gas turbine ... -
Proportional Integral Derivative Based Fault Tolerant Control for a Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2010)This paper presents a fault tolerant control switching scheme with embedded fault detection and isolation system for the gas turbine of a combined cycle power plant. Mechanical faults of the ... -
Predicted Rotordynamic Behavior of a Labyrinth Seal as Rotor Surface Speed Approaches Mach 1
(The American Society of Mechanical Engineers (ASME), 2010)Prior one-control-volume (1CV) models for rotor-fluid interaction in labyrinth seals produce synchronously reduced (at running speed), frequency-independent stiffness and damping coefficients. The 1CV ... -
Measurements of Drag Torque, Lift-Off Journal Speed, and Temperature in a Metal Mesh Foil Bearing
(The American Society of Mechanical Engineers (ASME), 2010)Metal mesh foil bearings (MMFBs) are a promising low cost gas bearing technology for high performance oil-free microturbomachinery. Elimination of complex oil lubrication and sealing system by ... -
Dynamics of Premixed H2/CH4 Flames Under Near Blowoff Conditions
(The American Society of Mechanical Engineers (ASME), 2010)Swirling flows are widely used in industrial burners and gas turbine combustors for flame stabilization. Several prior studies have shown that these flames exhibit complex dynamics under near ... -
Thermodynamic Analysis of Part-Flow Cycle Supercritical CO2 Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2010)Cycle characteristics of closed gas turbines using supercritical carbon dioxide as a working fluid are investigated. It is found that an anomalous behavior of the physical properties of CO2 at ... -
Thermoacoustic Modeling of a Gas Turbine Using Transfer Functions Measured Under Full Engine Pressure
(The American Society of Mechanical Engineers (ASME), 2010)Thermoacoustic transfer functions of a full-scale gas turbine burner operating under full engine pressure have been measured. The excitation of the high-pressure test facility was done using a ... -
Design of Electromagnetic Dampers for Aero-Engine Applications
(The American Society of Mechanical Engineers (ASME), 2010)The vibration control of rotors for gas or steam turbines is usually performed using passive dampers when hydrodynamic bearings are not used. In layouts where the rotating parts are supported ... -
3D RANS Simulation of Turbulent Flow and Combustion in a 5 MW Reverse-Flow Type Gas Turbine Combustor
(The American Society of Mechanical Engineers (ASME), 2010)This study is concerned with 3D RANS simulation of turbulent flow and combustion in a 5 MW commercial gas turbine combustor. The combustor under consideration is a reverse flow, dry low NOx ... -
A Comprehensive Procedure to Estimate the Probability of Extreme Vibration Levels Due to Mistuning
(The American Society of Mechanical Engineers (ASME), 2010)A new procedure is developed to find the probabilities of extremely high amplification factors in mistuned bladed disk vibration levels, typical of events which occur rarely. While a rough ... -
A Reduced-Order Model of Detuned Cyclic Dynamical Systems With Geometric Modifications Using a Basis of Cyclic Modes
(The American Society of Mechanical Engineers (ASME), 2010)A new reduction method for vibration analysis of intentionally mistuned bladed disks is presented. The method is built for solving the dynamic problem of cyclic structures with geometric ... -
Computational Fluid Dynamics Application of the Diffusion-Inertia Model to Bubble Flows and Boiling Water Problems
(The American Society of Mechanical Engineers (ASME), 2010)This paper is aimed at the application of a model for simulating the dispersed turbulent flows. The presented model proceeds from a kinetic equation for the probability density function of the ... -
GAS TURBINE COMBUSTION—Alternative Fuels and Emissions
(The American Society of Mechanical Engineers (ASME), 2010)GAS TURBINE COMBUSTION—Alternative Fuels and Emissions,. CRC Press, Taylor and Francis Group, New York, NY, 2010, ISSN: 978-1-4200-8604-1