Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 4221-4240 of 9564
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Performance Benefits of a Portable Hybrid Micro-Gas Turbine Power System for Automotive Applications
(The American Society of Mechanical Engineers (ASME), 2011)The lower fuel burn and pollutant emissions of hybrid electric vehicles give a strong motivation and encourage further investigations in this field. The know-how on hybrid vehicle technology is ... -
Understanding Ignition Delay Effects With Pure Component Fuels in a Single-Cylinder Diesel Engine
(The American Society of Mechanical Engineers (ASME), 2011)In order to better understand how future candidate diesel fuels may affect combustion characteristics in diesel engines, 21 pure component hydrocarbon fuels were tested in a single-cylinder diesel ... -
Effect of Mass Transfer on the Performance of Selective Catalytic Reduction (SCR) Systems
(The American Society of Mechanical Engineers (ASME), 2011)This paper presents a computational investigation of the effect of mass transfer on the performance of selective catalytic reduction (SCR) catalysts, which are employed to reduce NOx emissions ... -
Design Parameters for an Aircraft Engine Exit Plane Particle Sampling System
(The American Society of Mechanical Engineers (ASME), 2011)The experimental data and numerical modeling were utilized to investigate the effects of exhaust sampling parameters on the measurements of particulate matter (PM) emitted at the exit plane of ... -
Impact of Screens Around Bearings on the Flow and Heat Transfer in the Vent and Scavenge Oil Pipes in Bearing Chambers
(The American Society of Mechanical Engineers (ASME), 2011)The aim of this paper is to investigate, first, the effects of screens introduced around bearings and, second, the use of protruded instead of flush installed vent pipes. The investigation ... -
Model-Based Actuator Trajectories Optimization for a Diesel Engine Using a Direct Method
(The American Society of Mechanical Engineers (ASME), 2011)This paper proposes a novel optimization method that allows a reduction in the pollutant emission of diesel engines during transient operation. The key idea is to synthesize optimal actuator ... -
Flame Response Mechanisms Due to Velocity Perturbations in a Lean Premixed Gas Turbine Combustor
(The American Society of Mechanical Engineers (ASME), 2011)The response of turbulent premixed flames to inlet velocity fluctuations is studied experimentally in a lean premixed, swirl-stabilized, gas turbine combustor. Overall chemiluminescence intensity ... -
Experimental Investigation of Thermal Load in High Speed Direct Injection Diesel Engine Under the Control of Various Engine Performance Parameters
(The American Society of Mechanical Engineers (ASME), 2011)Multiple injection strategies are being widely utilized to reduce the vibration, noise, and particle emission in diesel engines. A considerable amount of research related to attempts to increase ... -
Lubricant-Derived Ash Properties and Their Effects on Diesel Particulate Filter Pressure-Drop Performance
(The American Society of Mechanical Engineers (ASME), 2011)Diesel particulate filters (DPFs) have seen widespread use in on- and off-road applications as an effective means for meeting increasingly stringent particle emission regulations. Over time, ... -
Gas-to-Liquid Sprays at Different Injection and Ambient Conditions
(The American Society of Mechanical Engineers (ASME), 2011)Alternative fuels exhibit potential as a clean fuel and suitable to address problems of energy security and environmental pollution. The main objective of this research was to provide the ... -
Experimental Investigation of the Nonlinear Response of Swirl-Stabilized Flames to Equivalence Ratio Oscillations
(The American Society of Mechanical Engineers (ASME), 2011)The nonlinear response of a swirl-stabilized flame to equivalence ratio oscillations was experimentally investigated in an atmospheric-pressure, high-temperature, lean-premixed model gas turbine ... -
Measurements of Density Pulsations in the Outlet Nozzle of a Combustion Chamber by Rayleigh-Scattering Searching Entropy Waves
(The American Society of Mechanical Engineers (ASME), 2011)The development of measurement techniques, which enable temporal and spatial highly resolved density investigations even in harsh environments, is essential. Rayleigh scattering is a noninvasive ... -
Chemical Looping Combustion Using the Direct Combustion of Liquid Metal in a Gas Turbine Based Cycle
(The American Society of Mechanical Engineers (ASME), 2011)A combined cycle gas-turbine generating power and hydrogen is proposed and evaluated. The cycle embodies chemical looping combustion (CLC) and uses a Na based oxygen carrier. In operation, a ... -
A Test Rig for Noncontact Traveling Wave Excitation of a Bladed Disk With Underplatform Dampers
(The American Society of Mechanical Engineers (ASME), 2011)This paper presents a static test rig called “Octopus” designed for the validation of numerical models aimed at calculating the nonlinear dynamic response of a bladed disk with underplatform ... -
Performance Model “Zooming” for In-Depth Component Fault Diagnosis
(The American Society of Mechanical Engineers (ASME), 2011)A method giving the possibility for a more detailed gas path component fault diagnosis by exploiting the “zooming” feature of current performance modeling techniques is presented. A diagnostic ... -
An Immersed Particle Heat Exchanger for Externally Fired and Heat Recovery Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2011)Designing and manufacturing high-efficiency heat exchangers is usually considered a limiting factor in the development of gas turbines employing either heat recovery Joule–Brayton cycles or external ... -
Identification of Structural Stiffness and Energy Dissipation Parameters in a Second Generation Foil Bearing: Effect of Shaft Temperature
(The American Society of Mechanical Engineers (ASME), 2011)Established high temperature operation of gas foil bearings (GFB) is of great interest for gas turbine applications. The effects of (high) shaft temperature on the structural stiffness and ... -
Effects of Swirl Velocities From Fan Assemblies Mounted on Lifting Surfaces
(The American Society of Mechanical Engineers (ASME), 2011)The penetration of a jet of fluid into a traversal moving stream is a basic configuration of a wide range of engineering applications, such as film cooling and V/STOL aircrafts. This investigation ... -
An Investigation Into the Effects of Highly Transient Flight Maneuvers With Heat and Mass Transfer on the T-38 Air Force Trainer Inlet
(The American Society of Mechanical Engineers (ASME), 2011)The T-38 talon currently serves as the primary United States Air Force trainer for fighter aircraft. This supersonic trainer was developed in the 1960s but continues to be used today as the ... -
Modeling Wall Film Formation and Breakup Using an Integrated Interface-Tracking/Discrete-Phase Approach
(The American Society of Mechanical Engineers (ASME), 2011)We propose a computationally tractable model for film formation and breakup based on data from experiments and direct numerical simulations. This work is a natural continuation of previous studies ...