Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 6001-6020 of 9564
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Identification of Mistuning Characteristics of Bladed Disks From Free Response Data—Part I
(The American Society of Mechanical Engineers (ASME), 2001)The focus of the present two-part investigation is on the estimation of the dynamic properties, i.e., masses, stiffnesses, natural frequencies, mode shapes and their statistical distributions, of ... -
A Study of Integrally Augmented State Feedback Control for an Active Magnetic Bearing Supported Rotor System
(The American Society of Mechanical Engineers (ASME), 2001)State feedback controller designs allow for pole placement in an effective manner, but reduction of static offset is difficult. On the other hand, classical control methodology allows for the ... -
A Novel Limit Distribution for the Analysis of Randomly Mistuned Bladed Disks1
(The American Society of Mechanical Engineers (ASME), 2001)A recently introduced perturbation technique is employed to derive a novel closed form model for the probability density function of the resonant and near-resonant, steady state amplitude of ... -
Identification of Mistuning Characteristics of Bladed Disks From Free Response Data— Part II
(The American Society of Mechanical Engineers (ASME), 2001)The focus of the present two-part investigation is on the estimation of the dynamic properties, i.e., masses, stiffnesses, natural frequencies, mode shapes and their statistical distributions, of ... -
Modeling Atomization of High-Pressure Diesel Sprays
(The American Society of Mechanical Engineers (ASME), 2001)This paper deals with a numerical and experimental characterization of a high-pressure diesel spray injected by a common-rail injection system. The experiments considered a free non-evaporating ... -
A Neural Network Simulator of a Gas Turbine With a Waste Heat Recovery Section
(The American Society of Mechanical Engineers (ASME), 2001)The objective of the paper is to assess the feasibility of the neural network (NN) approach in power plant process evaluations. A “feed-forward” technique with a back propagation algorithm was ... -
Improving the Stability of Labyrinth Gas Seals
(The American Society of Mechanical Engineers (ASME), 2001)The flow through labyrinth seals of turbomachinery generates forces which can cause self-excited vibrations of the rotor above the stability limit. The stability limit is reached at a specific ... -
An Evaluation of Engine Faults Diagnostics Using Artificial Neural Networks
(The American Society of Mechanical Engineers (ASME), 2001)Application of artificial neural network (ANN)-based method to perform engine condition monitoring and fault diagnosis is evaluated. Back-propagation, feedforward neural nets are employed for ... -
Gas Turbine Compressor Washing State of the Art: Field Experiences1
(The American Society of Mechanical Engineers (ASME), 2001)Technology development in gas turbine compressor washing over the last 10 years and today’s state of the art technology is presented in this paper. Based on various long term field tests and ... -
Temperature Measurements in a Heavy Duty Gas Turbine Using Radiation Thermometry Technique: Error Evaluation
(The American Society of Mechanical Engineers (ASME), 2001)This paper describes a technique for the analysis of temperature measurement data obtained by using a radiation thermometer in a heavy duty gas turbine (PGT2 from Nuovo Pignone GE). The main ... -
A Fiber-Optic Tip-Shroud Deflection Measurement System
(The American Society of Mechanical Engineers (ASME), 2001)A Dutch utility faced the fact that a second stage set of turbine blades of a gas turbine had to be replaced long before the estimated lifetime as a result of tip shroud deflection. This ... -
Coupled and Uncoupled CFD Prediction of the Characteristics of Jets From Combustor Air Admission Ports
(The American Society of Mechanical Engineers (ASME), 2001)The paper focusses attention on alternative approaches for treating the coupling between the flow in the annulus supply ducts and the jets which enter combustor primary and dilution zones through ... -
Nonlinear Model Predictive Control Experiments on a Laboratory Gas Turbine Installation
(The American Society of Mechanical Engineers (ASME), 2001)Results on the feasibility and benefits of model based predictive control applied to a gas turbine are presented. For a laboratory gas turbine installation, the required dynamic simulation model ... -
Structural Health Monitoring With Piezoelectric Active Sensors
(The American Society of Mechanical Engineers (ASME), 2001)A technology for non-intrusive real-time structural health monitoring using piezoelectric active sensors is presented. The approach is based on monitoring variations of the coupled electromechanical ... -
9 ppm NOx/CO Combustion System for “F” Class Industrial Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2001)The Dry Low NOx (DLN) -2.6 combustion system has achieved emission rates of lower than 9 ppm NOx (dry, corrected to 15 percent O2) and CO from 50 to 100 percent load for the GE MS7001FA ... -
Computational Modeling of Self-Excited Combustion Instabilities
(The American Society of Mechanical Engineers (ASME), 2001)It is well known that lean premixed combustion systems potentially offer better emissions performance than conventional non-premixed designs. However, premixed combustion systems are more susceptible ... -
Experimental Assessment of Fiber-Reinforced Ceramics for Combustor Walls
(The American Society of Mechanical Engineers (ASME), 2001)Experimental and theoretical work concerning the application of ceramic components in small high-temperature gas turbines has been performed for several years. The significance of some nonoxide ... -
An Experimental Study of Surface Temperature Distribution on Effusion-Cooled Plates
(The American Society of Mechanical Engineers (ASME), 2001)A parametric study of temperature distribution on effusion-cooled plates under conditions typical for combustion chambers was performed using infrared thermography. In this investigation, the effects ... -
Reduced Mechanisms for Prediction of NO2 Formation and Ignition Delay in Methane-Air Combustion
(The American Society of Mechanical Engineers (ASME), 2001)Two new 14-step and 16-step reduced mechanisms for methane-air combustion were systematically developed by assuming the quasisteady state for 26–28 species in the starting mechanism. A series of ... -
Design, Fabrication, and Testing of Ceramic Joints for High Temperature SiC/SiC Composites
(The American Society of Mechanical Engineers (ASME), 2001)Various issues associated with the design and mechanical evaluation of joints of ceramic matrix composites are discussed. The specific case of an affordable, robust ceramic joining technology ...