Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 4481-4500 of 9564
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Integration of Nuclear Energy Into Oil Sands Projects
(The American Society of Mechanical Engineers (ASME), 2010)Energy security and greenhouse gas reduction are thought to be two of the most urgent priorities for sustaining and improving the human condition in the near future. Few places pit the two ... -
Ignition Delay and Combustion Characteristics of Gaseous Fuel Jets
(The American Society of Mechanical Engineers (ASME), 2010)Gaseous fuels, such as hydrogen and natural gas, are utilized in internal combustion engines for spark-ignition operation. To improve thermal efficiency and to ensure control at good heat-release ... -
An Experimental Study on Air-Water Two-Phase Flow Patterns in Pebble Beds
(The American Society of Mechanical Engineers (ASME), 2010)An experimental study was conducted on the air-water two-phase flow patterns in the bed of rectangular cross sections containing spheres of regular distribution. Three kinds of glass spheres ... -
Optimal Tuner Selection for Kalman Filter-Based Aircraft Engine Performance Estimation
(The American Society of Mechanical Engineers (ASME), 2010)A linear point design methodology for minimizing the error in on-line Kalman filter-based aircraft engine performance estimation applications is presented. This technique specifically addresses the ... -
Combustion Characteristics of HCCI in Motorcycle Engine
(The American Society of Mechanical Engineers (ASME), 2010)Homogeneous charge compression ignition (HCCI) is recognized as an advanced combustion system for internal combustion engines that reduces fuel consumption and exhaust emissions. This work studied ... -
Engine Emission Modeling Using a Mixed Physics and Regression Approach
(The American Society of Mechanical Engineers (ASME), 2010)This paper presents a novel control-oriented model of the raw emissions of diesel engines. An extended quasistationary approach is developed where some engine process variables, such as combustion ... -
Producing Hydrogen and Power Using Chemical Looping Combustion and Water-Gas Shift
(The American Society of Mechanical Engineers (ASME), 2010)A cycle capable of generating both hydrogen and power with “inherent” carbon capture is proposed and evaluated. The cycle uses chemical looping combustion to perform the primary energy release ... -
Identification of Squeeze Film Damper Force Coefficients From Multiple-Frequency Noncircular Journal Motions
(The American Society of Mechanical Engineers (ASME), 2010)In rotor-bearing systems, squeeze film dampers (SFDs) provide structural isolation, reduce amplitudes of rotor response to imbalance, and in some instances, increase the system threshold speed of ... -
Rotordynamic Force Coefficients of a Hybrid Brush Seal: Measurements and Predictions
(The American Society of Mechanical Engineers (ASME), 2010)Brush seals effectively control leakage in air breathing engines, albeit only applied for relatively low-pressure differentials. Hybrid brush seals (HBS) are an alternative to resolve poor reliability ... -
Testing and Calibration Procedures for Mistuning Identification and Traveling Wave Excitation of Blisks
(The American Society of Mechanical Engineers (ASME), 2010)In this work, an integrated testing and calibration procedure is presented for performing mistuning identification (ID) and traveling wave excitation (TWE) of one-piece bladed disks (blisks). The ... -
The Analysis of Heat Transfer in Automotive Turbochargers
(The American Society of Mechanical Engineers (ASME), 2010)Heat transfers in an automotive turbocharger comprise significant energy flows, but are rarely measured or accounted for in any turbocharger performance assessment. Existing measurements suggest ... -
Thermohydrodynamic Analysis of Bump Type Gas Foil Bearings: A Model Anchored to Test Data
(The American Society of Mechanical Engineers (ASME), 2010)The paper introduces a thermohydrodynamic (THD) model for prediction of gas foil bearing (GFB) performance. The model includes thermal energy transport in the gas film region and with cooling ... -
Experimental Investigation of the Effect of Biodiesel Utilization on Lubricating Oil Degradation and Wear of a Transportation CIDI Engine
(The American Society of Mechanical Engineers (ASME), 2010)In the present experimental research work, rice-bran oil methyl ester (ROME) is derived through transesterification of rice-bran oil using methanol in the presence of sodium hydroxide catalyst. ... -
Maximization of the Profit of a Complex Combined-Cycle Cogeneration Plant Using a Professional Process Simulator
(The American Society of Mechanical Engineers (ASME), 2010)The high cost of energy resources has driven a strong and continued quest for their optimal utilization. In this context, modern thermoeconomic optimization techniques have been developed to ... -
Characterization of Forced Flame Response of Swirl-Stabilized Turbulent Lean-Premixed Flames in a Gas Turbine Combustor
(The American Society of Mechanical Engineers (ASME), 2010)Flame transfer function measurements of turbulent premixed flames are made in a model lean-premixed, swirl-stabilized, gas turbine combustor. OH∗, CH∗, and CO2∗ chemiluminescence emissions are ... -
Experimental Analysis of a Waveguide Pressure Measuring System
(The American Society of Mechanical Engineers (ASME), 2010)An infinite-line probe is commonly used to measure unsteady pressure in high-temperature environments while protecting the pressure transducer. In this study, an existing theoretical model is used ... -
Application of Cost Matrices and Cost Curves to Enhance Diagnostic Health Management Metrics for Gas Turbine Engines
(The American Society of Mechanical Engineers (ASME), 2010)Statistically based metrics, incorporating operating costs, for gas turbine engine diagnostic systems are required to evaluate competing products fairly and to establish a convincing business case. ... -
Gas Turbine Performance and Health Status Estimation Using Adaptive Gas Path Analysis
(The American Society of Mechanical Engineers (ASME), 2010)In gas turbine operations, engine performance and health status are very important information for engine operators. Such engine performance is normally represented by engine airflow rate, compressor ... -
Time Scale Model for the Prediction of the Onset of Flame Flashback Driven by Combustion Induced Vortex Breakdown
(The American Society of Mechanical Engineers (ASME), 2010)Flame flashback driven by combustion induced vortex breakdown (CIVB) represents one of the most severe reliability problems of modern gas turbines with swirl stabilized combustors. Former experimental ... -
Jet Engine Health Signal Denoising Using Optimally Weighted Recursive Median Filters
(The American Society of Mechanical Engineers (ASME), 2010)The removal of noise and outliers from health signals is an important problem in jet engine health monitoring. Typically, health signals are time series of damage indicators, which can be ...