Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5281-5300 of 9564
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Inlet Air Cooling Methods for Gas Turbine Based Power Plants
(The American Society of Mechanical Engineers (ASME), 2006)Background: Power generation from gas turbines is penalized by a substantial power output loss with increased ambient temperature. By cooling down the gas turbine intake air, the power output ... -
Gas Turbine Engine Durability Impacts of High Fuel-Air Ratio Combustors: Near Wall Reaction Effects on Film-Cooled Backward-Facing Step Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2006)As commercial and military aircraft engines approach higher total temperatures and increasing overall fuel-to-air ratios, the potential for significant chemical reactions to occur downstream of the ... -
Parametric Analysis of Combined Cycles Equipped With Inlet Fogging
(The American Society of Mechanical Engineers (ASME), 2006)In recent years, deregulation in the power generation market worldwide combined with significant variation in fuel prices and a need for flexibility in terms of power augmentation specially ... -
Modeling and Simulation of a Gas Turbine Engine for Power Generation
(The American Society of Mechanical Engineers (ASME), 2006)The gas turbine engine is a complex assembly of a variety of components that are designed on the basis of aerothermodynamic laws. The design and operation theories of these individual components ... -
Lean Blowout Limit and NOx Production of a Premixed Sub-ppm NOx Burner With Periodic Recirculation of Combustion Products
(The American Society of Mechanical Engineers (ASME), 2006)The technological objective of this work is the development of a lean-premixed burner for natural gas. Sub-ppm NOx emissions can be accomplished by shifting the lean blowout limit (LBO) to ... -
Dynamic Simulation of Carbonate Fuel Cell-Gas Turbine Hybrid Systems
(The American Society of Mechanical Engineers (ASME), 2006)Hybrid fuel cell/gas turbine systems provide an efficient means of producing electricity from fossil fuels with ultra low emissions. However, there are many significant challenges involved in ... -
A Novel Approach to Mechanism Reduction Optimization for an Aviation Fuel/Air Reaction Mechanism Using a Genetic Algorithm
(The American Society of Mechanical Engineers (ASME), 2006)This study presents a novel multiobjective genetic-algorithm approach to produce a new reduced chemical kinetic reaction mechanism to simulate aviation fuel combustion under various operating ... -
Experimental Analysis of Soot Formation in Sooting Diffusion Flame by Using Laser-Induced Emissions
(The American Society of Mechanical Engineers (ASME), 2006)Two-dimensional images of OH fluorescence, polycyclic aromatic hydrocarbons (PAHs) fluorescence, and laser-induced incandescence (LII) from soot were measured in a sooting diffusion flame. To obtain ... -
Integration of Gas Turbines Adapted for Syngas Fuel With Cryogenic and Membrane-Based Air Separation Units: Issues to Consider for System Studies
(The American Society of Mechanical Engineers (ASME), 2006)The purpose of this paper is to aid systems analysts in the design, modeling, and assessment of advanced, gasification-based power generation systems featuring air separation units (ASUs) integrated ... -
Experimental Study on the Role of Entropy Waves in Low-Frequency Oscillations in a RQL Combustor
(The American Society of Mechanical Engineers (ASME), 2006)“Rumble” is a self-excited combustion instability, usually occurring at the start-up of aero-engines with fuel-spray atomizers at sub-idle and idle conditions, and exhibiting low limit frequencies ... -
Combining Classification Techniques With Kalman Filters for Aircraft Engine Diagnostics
(The American Society of Mechanical Engineers (ASME), 2006)A diagnostic method consisting of a combination of Kalman filters and Bayesian Belief Network (BBN) is presented. A soft-constrained Kalman filter uses a priori information derived by a BBN at ... -
Transient Analysis of Solid Oxide Fuel Cell Hybrids—Part I: Fuel Cell Models
(The American Society of Mechanical Engineers (ASME), 2006)The main goal of this work is the transient analysis of hybrid systems based on solid oxide fuel cells (SOFC). The work is divided into three parts: in the first, the fuel cell transient ... -
Supplementary Backward Equations for Pressure as a Function of Enthalpy and Entropy p(h,s) to the Industrial Formulation IAPWS-IF97 for Water and Steam
(The American Society of Mechanical Engineers (ASME), 2006)In modeling steam power cycles, thermodynamic properties as functions of the variables enthalpy and entropy are required in the liquid and the vapor regions. It is difficult to perform these ... -
Injection Pressure Fluctuations Model Applied to a Multidimensional Code for Diesel Engines Simulation
(The American Society of Mechanical Engineers (ASME), 2006)This paper deals with the pressure supply fluctuations that occur in the fuel rail and in the injector on the immediate upstream side of the atomizer. It has been experimentally demonstrated ... -
Identification of Frequency-Dependent Parameters in a Flexible Rotor System
(The American Society of Mechanical Engineers (ASME), 2006)In a rotor-bearing system, there are usually some under- or unmodeled dynamic components that are considered frequency dependent, such as foundations, bearings, and seals. This paper presents a ... -
Unbalance Response of Rotors Supported on Hydrodynamic Bearings Placed Close to Nodal Points of Excited Vibration Modes
(The American Society of Mechanical Engineers (ASME), 2006)The traditional 8-coefficient bearing model, used in linear rotor dynamics, is shown here to be inadequate for the unbalance response calculation of rotor systems supported on hydrodynamic journal ... -
Gas Turbine and Generator Test Experience in Support of the Advanced Hull Form Inshore Demonstrator (AHFID)
(The American Society of Mechanical Engineers (ASME), 2006)This paper describes a test program designed to assess the suitability of a TF40-based gas turbine generator set (genset) for use in the Advanced Hull Form Inshore Demonstrator (AHFID). An ... -
On LMI-Based Optimization of Vibration and Stability in Rotor System Design
(The American Society of Mechanical Engineers (ASME), 2006)This paper considers optimization of rotor system design using stability and vibration response criteria. The initial premise of the study is that the effect of certain design changes can be ... -
Analysis of Oil Film Thickness and Heat Transfer on a Piston Ring of a Diesel Engine: Effect of Lubricant Viscosity
(The American Society of Mechanical Engineers (ASME), 2006)The effect of lubricant viscosity on the temperature and thickness of oil film on a piston ring in a diesel engine was analyzed by using unsteady state thermohydrodynamic lubrication analysis, ... -
Active Rotor-Blade Vibration Control Using Shaft-Based Electromagnetic Actuation
(The American Society of Mechanical Engineers (ASME), 2006)In this paper the feasibility of actively suppressing rotor and blade vibration via shaft-based actuation is studied. A mathematical model is derived, taking into account the special dynamical ...