Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5201-5220 of 9564
-
Dynamics of a High-Frequency Fuel Actuator and its Applications for Combustion Instability Control
(The American Society of Mechanical Engineers (ASME), 2007)The present paper performs complementary experimental and theoretical investigations of a pump-style, high-frequency, magnetostrictive fuel actuator, which achieves fuel modulations by periodically ... -
Assessment of the Computing Time for the IAPWS-IF97 Equations
(The American Society of Mechanical Engineers (ASME), 2007)Computing times of equations based on the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam (IAPWS-IF97) were tested. Modern computer systems are optimized for ... -
Should Biomass be Used for Power Generation or Hydrogen Production?
(The American Society of Mechanical Engineers (ASME), 2007)In the last several years, gasification has become an interesting option for biomass utilization because the produced gas can be used as a gaseous fuel in different applications or burned in ... -
A Novel Approach to Predicting NOx Emissions From Dry Low Emissions Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2007)An empirical modeling concept for the prediction of NOx emissions from dry low emissions (DLE) gas turbines is presented. The approach is more suited to low emissions operation than are ... -
Friction Reduction by Piston Ring Pack Modifications of a Lean-Burn Four-Stroke Natural Gas Engine: Experimental Results
(The American Society of Mechanical Engineers (ASME), 2007)A project to reduce frictional losses from natural gas engines is currently being carried out by a collaborative team from Waukesha Engine Dresser, Massachusetts Institute of Technology (MIT), ... -
The Maximum Power Operating Point for a Combustion-Driven Thermoelectric Converter With Heat Recirculation
(The American Society of Mechanical Engineers (ASME), 2007)A model is developed for determining the ideal operating point, based on maximum power output, for a thermoelectric conversion (TEC) element coupled to a combustor. In the analysis, heat ... -
Supplementary Backward Equations p(h,s) for the Critical and Supercritical Regions (Region 3), and Equations for the Two-Phase Region and Region Boundaries of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam
(The American Society of Mechanical Engineers (ASME), 2007)When steam power cycles are modeled, thermodynamic properties as functions of enthalpy and entropy are required in the critical and supercritical regions (region 3 of IAPWS-IF97). With IAPWS-IF97, ... -
Natural Gas Decarbonization Technologies for Advanced Power Plants
(The American Society of Mechanical Engineers (ASME), 2007)In this paper two options for H2 production, by means of natural gas, are presented and their performances are evaluated when they are integrated with advanced H2/air cycles. In this investigation ... -
Numerical and Experimental Analysis of the Intake Flow in a High Performance Four-Stroke Motorcycle Engine: Influence of the Two-Equation Turbulence Models
(The American Society of Mechanical Engineers (ASME), 2007)An experimental and numerical analysis of the intake system of a production high performance four-stroke motorcycle engine was carried out. The aim of the work was to characterize the fluid ... -
Study of Multimode Combustion System With Gasoline Direct Injection
(The American Society of Mechanical Engineers (ASME), 2007)In this paper, a multimode combustion system was developed in a gasoline direct injection engine. A two-stage fuel-injection strategy, including flexible injection timings and flexible fuel quantity, ... -
Rotordynamics
(The American Society of Mechanical Engineers (ASME), 2007)Rotordynamics, . CRC Press, Taylor & Francis Group, Boca Raton, FL, 2005, 1128 pp., ISBN: 0-8247-2399-6 -
Combined First and Second-Law Analysis of Gas Turbine Cogeneration System With Inlet Air Cooling and Evaporative Aftercooling of the Compressor Discharge
(The American Society of Mechanical Engineers (ASME), 2007)A conceptual gas turbine based cogeneration cycle with compressor inlet air cooling and evaporative aftercooling of the compressor discharge is proposed to increase the cycle performance significantly ... -
Rotordynamic Performance of Flexure Pivot Hydrostatic Gas Bearings for Oil-Free Turbomachinery
(The American Society of Mechanical Engineers (ASME), 2007)Micro-turbomachinery demands gas bearings to ensure compactness, light weight, and extreme temperature operation. Gas bearings with large stiffness and damping, and preferably of low cost, will ... -
Dynamics of Multistage Bladed Disks Systems
(The American Society of Mechanical Engineers (ASME), 2007)This paper presents a new and original method for dynamical analysis of multistage cyclic structures such as turbomachinery compressors or turbines. Each stage is modeled cyclically by its ... -
The Lomakin Effect in Annular Gas Seals Under Choked Flow Conditions
(The American Society of Mechanical Engineers (ASME), 2007)The paper deals with the static stability of annular gas seals under choked flow conditions. For a centered straight annular seal, choking can occur only in the exit section because the gas ... -
A Study on Fluidized Bed-Type Particulate Filter for Diesel Engines
(The American Society of Mechanical Engineers (ASME), 2007)A fluidized bed-type diesel particulate filter (DPF) was applied to filter particulate matter (PM) in diesel engine exhaust gas. The effects of the fluidized bed design parameters, such as gas ... -
Supersonic Virtual Valve Design for Numerical Simulation of a Large-Bore Natural Gas Engine
(The American Society of Mechanical Engineers (ASME), 2007)In many applications of supersonic injection devices, three-dimensional computation that can model a complex supersonic jet has become critical. However, in spite of its increasing necessity, it ... -
A Virtual Tool for Prediction of Turbocharger Nonlinear Dynamic Response: Validation Against Test Data
(The American Society of Mechanical Engineers (ASME), 2007)Advances on the modeling of nonlinear rotor-bearing models for prediction of the dynamic shaft response of automotive turbochargers (TCs) supported on floating ring bearings (FRBs) are presented. ... -
Transient Modeling of the NETL Hybrid Fuel Cell/Gas Turbine Facility and Experimental Validation
(The American Society of Mechanical Engineers (ASME), 2007)This paper describes the experimental validation of two different transient models of the hybrid fuel cell/gas turbine facility of the U.S. DOE-NETL at Morgantown. The first part of this work ... -
A New Bump-Type Foil Bearing Structure Analytical Model
(The American Society of Mechanical Engineers (ASME), 2007)A gas bearing of bump foil type comprises an underlying structure made of one or several strips of corrugated sheet metal covered by a top foil surface. The fluid film pressure needs to be ...