Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5721-5740 of 9564
-
Degradation Effects on Combined Cycle Power Plant Performance—Part I: Gas Turbine Cycle Component Degradation Effects
(The American Society of Mechanical Engineers (ASME), 2003)This paper describes the effects of degradation of the main gas path components of the gas turbine topping cycle on the combined cycle gas turbine (CCGT) plant performance. First, the component ... -
Degradation Effects on Combined Cycle Power Plant Performance—Part II: Steam Turbine Cycle Component Degradation Effects
(The American Society of Mechanical Engineers (ASME), 2003)This is the second paper exploring the effects of the degradation of different components on combined cycle gas turbine (CCGT) plant performance. This paper investigates the effects of degraded ... -
Revisiting the Inhibition of Vanadium-Induced Hot Corrosion in Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2003)Since the 1970s, nothing substantially new has been published in the gas turbine community about the hot corrosion by vanadium and its inhibition, after the “inhibition orthodoxy” based on the ... -
Flashback in Lean Prevaporized Premixed Combustion: Nonswirling Turbulent Pipe Flow Study
(The American Society of Mechanical Engineers (ASME), 2003)A fundamental study has been performed on the upstream flame propagation of a turbulent kerosene flame, stabilized in a confined stagnation flow at atmospheric pressure. Besides temperature and ... -
Time Domain Simulation of Combustion Instabilities in Annular Combustors
(The American Society of Mechanical Engineers (ASME), 2003)A novel method for the simulation of combustion instabilities in annular combustors is presented. It is based on the idea to solve the equations governing the acoustics in the time domain and ... -
Nonlinear Engine Component Fault Diagnosis From a Limited Number of Measurements Using a Combinatorial Approach
(The American Society of Mechanical Engineers (ASME), 2003)A method for diagnosing component faults of jet engines is presented. It uses nonlinear gas path analysis techniques to determine the values of health parameters, with the help of a suitably ... -
Subsonic Elector Nozzle Limiting Flow Conditions
(The American Society of Mechanical Engineers (ASME), 2003)This paper describes an analytical method used to provide information concerning limiting flows for subsonic ejector nozzles. Three potential limiting flows have been identified and modeled using ... -
Controller Design for a Gas Turbine Using Periodic Output Feedback
(The American Society of Mechanical Engineers (ASME), 2003)The advent of electronic controllers in the field of gas turbine control has allowed the implementation of sophisticated control algorithms. This paper proposes one such method, to design a ... -
Setting Up of a Probabilistic Neural Network for Sensor Fault Detection Including Operation With Component Faults
(The American Society of Mechanical Engineers (ASME), 2003)The diagnostic ability of probabilistic neural networks (PNN) for detecting sensor faults on gas turbines is examined. The structure and the features of a PNN, for sensor fault detection, are ... -
Numerical Investigation of the Effects of Axial Cylinder Bore Profiles on Piston Ring Radial Dynamics
(The American Society of Mechanical Engineers (ASME), 2003)The role of cylinder bore shapes in engine performance has been the subject of several studies in recent years. In particular, the influence of bore distortion on oil consumption under high ... -
Energy and Exergy Analyses of the Pulse Detonation Engine
(The American Society of Mechanical Engineers (ASME), 2003)Energy and exergy analyses have been performed on a pulse detonation engine. A pulse detonation engine is a promising new engine, which uses a detonation wave instead of a deflagration wave ... -
Application of Fuzzy Logic for Fault Isolation of Jet Engines
(The American Society of Mechanical Engineers (ASME), 2003)A fuzzy logic system is developed for gas turbine module fault isolation. Inputs to the fuzzy logic system are measurement deviations of gas path parameters from a “good” baseline engine. The ... -
Interpretation of Weighted-Least-Squares Gas Path Analysis Results
(The American Society of Mechanical Engineers (ASME), 2003)Gas turbine performance analysis programs convert raw measurements (thrust, fuel flow, gas path temperatures, and pressures) into engine and component figures of merit (e.g., specific fuel ... -
Mechanical Surface Treatment Technologies for Gas Turbine Engine Components
(The American Society of Mechanical Engineers (ASME), 2003)Various mechanical surface treatment technologies have been invented and developed to induce a protective layer of compressive residual stress at the surface of gas turbine engine components where ... -
Contact Stresses in Dovetail Attachments: Alleviation via Precision Crowning
(The American Society of Mechanical Engineers (ASME), 2003)Previous studies of contact stresses in dovetail attachments provide verified finite element stresses as well as some simple physical models of such stresses. Generally there is good agreement ... -
Engine Torque Nonuniformity Evaluation Using Instantaneous Crankshaft Speed Signal
(The American Society of Mechanical Engineers (ASME), 2003)The paper presents the development of a methodology for evaluating the torque nonuniformity between the various cylinders of an internal combustion engine (ICE). This nonuniformity can be due, ... -
Disintegration of Oil Jets Emerging From Axial Passages at the Face of a Rotating Cylinder
(The American Society of Mechanical Engineers (ASME), 2003)A fundamental study has been performed to examine the disintegration of oil films emerging from axial passages at the face of a rotating cylinder. The investigation has been conducted in ... -
Disintegration of Oil Films Emerging From Radial Holes in a Rotating Cylinder
(The American Society of Mechanical Engineers (ASME), 2003)A fundamental study has been performed to examine the disintegration of oil films emerging from radial holes in a rotating hollow cylinder. The configuration investigated is an abstraction of ... -
Computation of the Optimal Normal Load of a Friction Damper Under Different Types of Excitation
(The American Society of Mechanical Engineers (ASME), 2003)In this paper, forced responses of a frictionally damped turbine blade are investigated for three different types of excitation: white noise excitation, narrowband random excitation, and deterministic ... -
Numerical Study of Lean-Direct Injection Combustor With Discrete-Jet Swirlers Using Reynolds Stress Model
(The American Society of Mechanical Engineers (ASME), 2003)The flowfield in a lean-direct injection (LDI) combustor with discrete-jet swirlers is described and analyzed using a computational fluid dynamics (CFD) code with a Reynolds stress turbulence ...