Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 3241-3260 of 9564
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Development of an Innovative Multisensor Waveguide Probe With Improved Measurement Capabilities
(The American Society of Mechanical Engineers (ASME), 2015)Currently, waveguide probes are widely used in several turbomachinery applications ranging from the analysis of flow instabilities to the investigation of thermoacoustic phenomena. There are many advantages to using a ... -
Experimental Investigations of Spark Ignition in a Model Combustor With Synthesis Gas
(The American Society of Mechanical Engineers (ASME), 2015)The components of syngas derived from coal, biomass, and waste are significantly different from those of typical gas turbine fuels, such as natural gas and fuel oils. The variations of hydrogen and inert gases can modify ... -
Experimental Evaluation of the Effectiveness of Online Water Washing in Gas Turbine Compressors
(The American Society of Mechanical Engineers (ASME), 2015)An investigation of the effectiveness of online combustion turbine axial compressor washing using various purity grade waters and commercial washing detergents was performed. For this project, blade surface fouling dirt ... -
Operational Improvements for Startup Time Reduction in Solar Steam Turbines
(The American Society of Mechanical Engineers (ASME), 2015)Solar steam turbines are subject to high thermal stresses as a result of temperature gradients during transient operation, which occurs more frequently due to the variability of the solar resource. In order to increase the ... -
Investigation on the Effect of a Realistic Flow Field on the Adiabatic Effectiveness of an Effusion Cooled Combustor
(The American Society of Mechanical Engineers (ASME), 2015)Effusion cooling represents the state of the art of liner cooling technology for modern combustors. This technique consists of an array of closely spaced discrete film cooling holes and contributes to lower the metal ... -
Mathematical Model of Two Stage Turbocharging Gasoline Engine Propeller Propulsion System and Analysis of Its Flying Characteristic
(The American Society of Mechanical Engineers (ASME), 2015)A flying characteristic simulation method was studied for twostage turbocharging compression ignition (CI) engine propeller propulsion system, intended for medium/high altitude lowspeed longendurance multirole aerial vehicle ... -
An Experimental Investigation of the Dynamic Performance of a Vertical Application Three Lobe Bearing
(The American Society of Mechanical Engineers (ASME), 2015)Dynamic performance test results are provided for a verticalapplication threelobe bearing, geometrically similar to a threelobe bearing tested by Leader et al. (2010, “Evaluating and Correcting Subsynchronous Vibration ... -
Design and Analysis of a Unique Energy Storage Flywheel System—An Integrated Flywheel, Motor/Generator, and Magnetic Bearing Configuration
(The American Society of Mechanical Engineers (ASME), 2015)Energy storage is becoming increasingly important with the rising need to accommodate the energy needs of a greater population. Energy storage is especially important with intermittent sources such as solar and wind. ... -
Modified Modal Domain Analysis of a Bladed Rotor Using Coordinate Measurement Machine Data on Geometric Mistuning
(The American Society of Mechanical Engineers (ASME), 2015)Modified modal domain analysis (MMDA), a reduced order modeling technique, is applied to a geometrically mistuned integrally bladed rotor to obtain its natural frequencies, mode shapes, and forced response. The geometric ... -
An Experimental Study of the Load Orientation Sensitivity of Three Lobe Bearings
(The American Society of Mechanical Engineers (ASME), 2015)Static and dynamic performance test results are provided for a threelobe bearing evaluated over the following range of radial staticload orientations (taken from the leading edge of the loaded pad): 0 deg, 20 deg, ... -
Study on Erosion Characteristics of Solid Particles in the First Reheat Stage Blades of a Supercritical Steam Turbine
(The American Society of Mechanical Engineers (ASME), 2015)Reducing solid particle erosion (SPE) of blades is one of the most urgent problems for supercritical steam turbine power generation technology. Based on the erosion rate models and the particle rebound models of blade ... -
Enhancing the Economic Competitiveness of Concentrating Solar Power Plants Through an Innovative Integrated Solar Combined Cycle With Thermal Energy Storage
(The American Society of Mechanical Engineers (ASME), 2015)The present work deals with the thermoeconomic analysis of an innovative combined power cycle consisting of a moltensalt solar tower power plant with storage supported by additional heat provided from the exhaust of a ... -
Application of Boil Off Gas Compressors in Liquefied Natural Gas Plants
(The American Society of Mechanical Engineers (ASME), 2015)This paper discusses complexities and challenges of managing boil off gas (BOG) in liquefied natural gas (LNG) liquefaction plants. Most publications in the past have focused on regasification terminals and have not addressed ... -
Response of Soot Temperature to Unsteady Inlet Airflow Under Modulated Condition and Naturally Occurring Combustion Dynamics
(The American Society of Mechanical Engineers (ASME), 2015)The response of soot temperature to unsteady inlet airflow is characterized using pyrometry. The unsteady inlet airflow is achieved by either modulating inlet air or naturally occurring unstable flame, running on a jet ... -
Experimental Studies of High Efficiency Combustion With Fumigation of Dimethyl Ether and Propane Into Diesel Engine Intake Air
(The American Society of Mechanical Engineers (ASME), 2015)This work explores the role of the ignition quality of a fumigated fuel on combustion phasing and brake thermal efficiency (BTE), which was investigated in a 2.5 l turbocharged common rail lightduty diesel engine. Different ... -
Thermodynamics Cycle Analysis, Pressure Loss, and Heat Transfer Assessment of a Recuperative System for Aero Engines
(The American Society of Mechanical Engineers (ASME), 2015)Aiming in the direction of designing more efficient aeroengines, various concepts have been developed in recent years, among which is the concept of an intercooled and recuperative aeroengine. Particularly, in the area of ... -
Swirler Effects on Passive Control of Combustion Noise and Instability in a Swirl Stabilized Combustor
(The American Society of Mechanical Engineers (ASME), 2015)High strength porous inert media (PIM) placed in the reaction zone of a swirlstabilized leanpremixed combustor is a passive method of controlling combustion noise and instabilities. In this study, the effect of swirler ... -
Two Phase Flow Modeling and Measurements in Low Pressure Turbines—Part II: Turbine Wetness Measurement and Comparison to Computational Fluid Dynamics Predictions
(The American Society of Mechanical Engineers (ASME), 2015)The correct computation of steam subcooling, subsequent formation of nuclei and finally droplet growth is the basic prerequisite for a quantitative assessment of the wetness losses incurred in steam turbines due to thermal ... -
Two Phase Flow Modeling and Measurements in Low Pressure Turbines—Part I: Numerical Validation of Wet Steam Models and Turbine Modeling
(The American Society of Mechanical Engineers (ASME), 2015)In this publication, an overview of the current state of wetness modeling at the Institute of Thermal Turbomachinery and Machinery Laboratory (ITSM) is given. For the modeling, an Euler–Euler method implemented in the ... -
Transient Thermal Analysis and Viscoplastic Damage Model for Life Prediction of Turbine Components
(The American Society of Mechanical Engineers (ASME), 2015)This paper reports the process and computer methodology for a physicsbased prediction of overall deformation and local failure modes in cooled turbine airfoils, blade outer air seals, and other turbomachinery parts operating ...