Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5781-5800 of 9564
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Implementation and Validation of a New Soot Model and Application to Aeroengine Combustors
(The American Society of Mechanical Engineers (ASME), 2002)The modeling of soot formation and oxidation under industrially relevant conditions has made significant progress in recent years. Simplified models introducing a small number of transport equations ... -
Natural Gas Decarbonization to Reduce CO2 Emission From Combined Cycles—Part I: Partial Oxidation
(The American Society of Mechanical Engineers (ASME), 2002)This paper discusses novel schemes of combined cycle, where natural gas is chemically treated to remove carbon, rather than being directly used as fuel. Carbon conversion to CO2 is achieved ... -
Flow and Heat Transfer in an Industrial Rotor-Stator Rim Sealing Cavity
(The American Society of Mechanical Engineers (ASME), 2002)Flow and heat transfer in the row-1 upstream rotor-stator disk cavity of a large 3600-rpm industrial gas turbine was investigated using an integrated approach. A two dimensional axisymmetric ... -
Triple Cycle: A Conceptual Arrangement of Multiple Cycle Toward Optimal Energy Conversion
(The American Society of Mechanical Engineers (ASME), 2002)The purpose of this study is to find a maximum work output from various combinations of thermodynamic cycles from a viewpoint of the cycle systems. Three systems were discussed in this study: ... -
Forced Oscillations in Combustors With Spray Atomizers
(The American Society of Mechanical Engineers (ASME), 2002)Most types of combustion-driven devices experience combustion instabilities. For aeroengine combustors, the frequency of this oscillation is typically in the range 60–120 Hz and is commonly called ... -
A Kinetic Investigation of the Role of Changes in the Composition of Natural Gas in Engine Applications
(The American Society of Mechanical Engineers (ASME), 2002)The influence of variations in the composition of natural gas on the ignition and combustion processes in engines is investigated. Particular attention is given to changes in the relatively ... -
Features of Automotive Gas Tank Filler Pipe Two-Phase Flow: Experiments and Computational Fluid Dynamics Simulations
(The American Society of Mechanical Engineers (ASME), 2002)Extensive flow visualization in an automotive fuel filler pipe made visible by introducing dyes and smoke in water and air, respectively, were conducted for nominal flow rates of 4–18 liters ... -
A Comprehensive Model to Predict Three-Way Catalytic Converter Performance
(The American Society of Mechanical Engineers (ASME), 2002)This paper describes the development of a comprehensive mathematical and numerical model for simulating the performance of automotive three-way catalytic converters, which are employed to reduce ... -
A Test Rig for Frictionally Damped Bladed Segments
(The American Society of Mechanical Engineers (ASME), 2002)The paper describes the development of an instrumented test rig suitable to carry out vibration testing of the bladed segments of a turbine (belonging to a stator low pressure stage) in which ... -
Predictions of NOx Formation Under Combined Droplet and Partially Premixed Reaction of Diffusion Flame Combustors
(The American Society of Mechanical Engineers (ASME), 2002)A methodology is presented in this paper on the modeling of NOx formation in diffusion flame combustors where both droplet burning and partially premixed reaction proceed simultaneously. The ... -
Numerical Simulation of Real-Gas Flow in a Supersonic Turbine Nozzle Ring
(The American Society of Mechanical Engineers (ASME), 2002)In small Rankine cycle power plants, it is advantageous to use organic media as the working fluid. A low-cost single-stage turbine design together with the high molecular weight of the fluid ... -
Quantifying Fuel/Air Unmixedness in Premixing Nozzles Using an Acetone Fluorescence Technique
(The American Society of Mechanical Engineers (ASME), 2002)The ability of a lean-premixed combustion system to minimize emissions while maintaining combustion stability over the operating curve relies upon how well the fuel nozzle premixes the fuel and ... -
Compressor Exit Conditions and Their Impact on Flame Tube Injector Flows
(The American Society of Mechanical Engineers (ASME), 2002)Within a gas turbine engine the flow field issuing from the compression system is nonuniform containing, for example, circumferential and radial variations in the flow field due to wakes from ... -
Determination of Thermoacoustic Response in a Demonstrator Gas Turbine Engine
(The American Society of Mechanical Engineers (ASME), 2002)This paper describes an analytical and experimental investigation to obtain the thermoacoustic response of a demonstrator gas turbine engine combustor. The combustor acoustic response for two ... -
Detailed Analysis of the Acoustic Mode Shapes of an Annular Combustion Chamber
(The American Society of Mechanical Engineers (ASME), 2002)To get a better understanding of the formation of thermoacoustic oscillations in an annular gas turbine combustor, an analysis of the acoustic eigenmodes has been conducted using the finite ... -
Synchronous Response Estimation in Rotating Machinery
(The American Society of Mechanical Engineers (ASME), 2002)Synchronous response estimation attempts to determine the forced response (displacement) of a rotor at critical points which cannot be measured directly. This type of prediction, if accurate and ... -
Dynamic Response Predictions for a Mistuned Industrial Turbomachinery Rotor Using Reduced-Order Modeling
(The American Society of Mechanical Engineers (ASME), 2002)This paper explores the effects of random blade mistuning on the dynamics of an advanced industrial compressor rotor, using a component-mode-based reduced-order model formulation for tuned and ... -
Application of Model Order Reduction to Compressor Aeroelastic Models
(The American Society of Mechanical Engineers (ASME), 2002)A model order reduction technique that yields low-order models of blade row unsteady aerodynamics is introduced. The technique is applied to linearized unsteady Euler CFD solutions in such a ... -
Reconciliation of Rotordynamic Models With Experimental Data
(The American Society of Mechanical Engineers (ASME), 2002)A computationally efficient strategy is presented for adjusting analytic rotordynamic models to make them consistent with experimental data. The approach permits use of conventional rotordynamic ... -
Twin Web Disk: A Step Beyond Convention
(The American Society of Mechanical Engineers (ASME), 2002)This paper will discuss a study of an innovative design for an advanced turbine rotor that could have a great impact on future engines. The design challenge is to provide a minimum weight ...