Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 4361-4380 of 9564
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The Effects of Biodiesel Fuel Blends on Exhaust Emissions From a General Electric Tier 2 Line-Haul Locomotive
(The American Society of Mechanical Engineers (ASME), 2011)This paper documents the exhaust emission test results from a Tier 2 General Electric ES44DC line-haul locomotive with 3280 kW rated traction power and the impact of biodiesel fuel blends on ... -
Gas Turbine Combustor Flow Structure Control Through Modification of the Chamber Geometry
(The American Society of Mechanical Engineers (ASME), 2011)As combustors are put in service, problems such as erosion, hot spots, and liner oxidation occur, and a solution based on lessons learned is essential to avoid similar problems in future ... -
Evaluation of Alumina-Forming Austenitic Foil for Advanced Recuperators
(The American Society of Mechanical Engineers (ASME), 2011)A corrosion- and creep-resistant austenitic stainless steel has been developed for advanced recuperator applications. By optimizing the Al and Cr contents, the alloy is fully austenitic for creep ... -
Premixed-Diffusive Multizone Model for Combustion Diagnostics in Conventional and PCCI Diesel Engines
(The American Society of Mechanical Engineers (ASME), 2011)A new multizone premixed-diffusive combustion model has been developed, assessed, and applied to diagnose the burning process and emission formation in a conventional and in a premixed charge ... -
Demonstration of a Palm-Sized 30 W Air-to-Power Turbine Generator
(The American Society of Mechanical Engineers (ASME), 2011)A compact, high power density turbo-generator system was conceived, designed, and experimentally tested. The air-to-power (A2P) device with a nominal design point of 50 W electric power output ... -
Development of a High Speed Gas Bearing Test Rig to Measure Rotordynamic Force Coefficients
(The American Society of Mechanical Engineers (ASME), 2011)The use of gas bearings has increased over the past several decades to include microturbines, air cycle machines, and hermetically sealed compressors and turbines. Gas bearings have many advantages ... -
Exploration of NDE Properties of AMB Supported Rotors for Structural Damage Detection
(The American Society of Mechanical Engineers (ASME), 2011)This paper addresses self-diagnostic properties of active magnetic bearing (AMB) supported rotors for online detection of the transverse crack on a rotating shaft. In addition to pure levitation, ... -
The Amplification of Vibration Response Levels of Mistuned Bladed Disks: Its Consequences and Its Distribution in Specific Situations
(The American Society of Mechanical Engineers (ASME), 2011)It is known that small differences between nominally identical turbomachine blades, known as mistuning, can lead to significant variation in their vibration response levels. A commonly used term ... -
A High-Accuracy Model Reduction for Analysis of Nonlinear Vibrations in Structures With Contact Interfaces
(The American Society of Mechanical Engineers (ASME), 2011)A highly accurate and computationally efficient method is proposed for reduced modeling of jointed structures in the frequency domain analysis of nonlinear steady-state forced response. The method ... -
Setup of an Experimental Facility for the Investigation of Wet Compression on a Multistage Compressor
(The American Society of Mechanical Engineers (ASME), 2011)At present, inlet fogging and wet compression are two of the most widely used approaches to enhance gas turbine performance, especially during hot seasons. However, potentially negative effects ... -
Experimental Test Rig With Results on Liquid Atomization by Slinger Injectors
(The American Society of Mechanical Engineers (ASME), 2011)In this work, a rotary atomizer, referred to as a slinger injector, is investigated. An experimental setup has been designed to model the environment of the combustion chamber, and an optical ... -
Supersonic Jet Noise Reduction Technologies for Gas Turbine Engines
(The American Society of Mechanical Engineers (ASME), 2011)This paper presents observations and simulations of the impact of several technologies on modifying the flow-field and acoustic emissions from supersonic jets from nozzles typical of those used ... -
An Experimental Investigation of the Nonlinear Response of an Atmospheric Swirl-Stabilized Premixed Flame
(The American Society of Mechanical Engineers (ASME), 2011)Due to stringent emission restrictions, modern gas turbines mostly rely on lean premixed combustion. Since this combustion mode is susceptible to thermoacoustic instabilities, there is a need for ... -
Integrated Power Recovery Using Markov Modeling
(The American Society of Mechanical Engineers (ASME), 2011)The solution to a Markov chain modeling electric power supply to critical equipment in a typical four-loop pressurized water reactor following a loss of offsite power event is compared with a ... -
Development of a Spark Discharge PM Sensor for Measurement of Engine-Out Soot Emissions
(The American Society of Mechanical Engineers (ASME), 2011)There is interest in measuring the engine-out particulate emissions from diesel engines in real time in order to optimize the engine control strategies such as exhaust gas recirculation (EGR) ... -
Effects of Pressure Ratio and Rotational Speed on Leakage Flow and Cavity Pressure in the Staggered Labyrinth Seal
(The American Society of Mechanical Engineers (ASME), 2011)Effects of pressure ratio and rotational speed on the leakage flow and cavity pressure characteristics of the rotating staggered labyrinth seal were investigated by means of experimental measurements ... -
Experimental and Computational Analyses of Methane and Hydrogen Mixing in a Model Premixer
(The American Society of Mechanical Engineers (ASME), 2011)The mixing of fuel and air in combustion systems plays a key role in overall operability and emissions performance. Such systems are also being looked to for operation on a wide array of ... -
Optimization of the Aerodynamic Flame Stabilization for Fuel Flexible Gas Turbine Premix Burners
(The American Society of Mechanical Engineers (ASME), 2011)A frequently employed method for aerodynamic flame stabilization in modern premixed low emission combustors is the breakdown of swirling flows; with carefully optimized tailoring of the swirler, ... -
In-Cylinder Equivalence Ratio Measurements in an EGR Equipped Engine
(The American Society of Mechanical Engineers (ASME), 2011)A single-cylinder natural gas fueled engine equipped with an exhaust gas recirculation (EGR) system was ignited using a laser. The broadband emission from the spark kernel was spectrally resolved, ... -
Developing Data Mining-Based Prognostic Models for CF-18 Aircraft
(The American Society of Mechanical Engineers (ASME), 2011)The CF-18 (CF denotes Canadian Forces) aircraft is a complex system for which a variety of data are systematically being recorded: flight data from sensors, built-in test equipment data, and ...