Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 3481-3500 of 9564
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Startup and Operation of a Supercritical Carbon Dioxide Brayton Cycle
(The American Society of Mechanical Engineers (ASME), 2014)Bechtel Marine Propulsion Corporation (BMPC) is testing a supercritical carbon dioxide (SCO2) Brayton system at the Bettis Atomic Power Laboratory. The 100 kWe integrated system test (IST) is a two shaft recuperated closed ... -
Reheat Air Brayton Combined Cycle Power Conversion Off Nominal and Transient Performance
(The American Society of Mechanical Engineers (ASME), 2014)Because molten fluoride salts can deliver heat at temperatures above 600 آ°C, they can be used to couple nuclear and concentrating solar power heat sources to reheat air combined cycles (RACC). With the openair configuration ... -
Turbocharger Synchronous Vibration Control on High Speed Balancer: Test and Prediction
(The American Society of Mechanical Engineers (ASME), 2014)Current trends for advanced automotive engines focusing on downsizing, better fuel efficiency, and lower emissions have led to several changes in turbocharger bearing systems design, and technology. Automotive turbochargers ... -
Research on the Dynamic Calibration of Thermocouple and Temperature Excitation Signal Generation Method Based on Shock Tube Theory
(The American Society of Mechanical Engineers (ASME), 2014)This paper introduces the equipment for generating an excitation signal during the process of thermocouple dynamic calibration in air medium, with the objective of dealing with the problems existing extensively in the ... -
Cascade Utilization of Fuel Gas Energy in Gas to Liquids Plant
(The American Society of Mechanical Engineers (ASME), 2014)This paper investigates on a gastoliquids (GTL) plant with ATR syngas production and proposes a new process to use a gas turbine and waste heat recovery gas/steam streams preheater to replace the fired heater. The new ... -
Experimental Investigation of a Hollow Cone Spray Using Laser Diagnostics
(The American Society of Mechanical Engineers (ASME), 2014)Atomization of fuel is a key integral part for efficient combustion in gas turbines. This demands a thorough investigation of the spray characteristics using innovative and useful spray diagnostics techniques. In this work, ... -
Gas Turbine Modeling for Diagnosis and Control
(The American Society of Mechanical Engineers (ASME), 2014)The supervision of performance in gas turbine applications is crucial in order to achieve: (i) reliable operations, (ii) low heat stress in components, (iii) low fuel consumption, and (iv) efficient overhaul and maintenance. ... -
Impact of Shear Flow Instabilities on the Magnitude and Saturation of the Flame Response
(The American Society of Mechanical Engineers (ASME), 2014)Amplitudedependent flame transfer functions, also denoted as flame describing functions, are valuable tools for the prediction of limitcycle amplitudes of thermoacoustic instabilities. However, the effects that govern the ... -
High Fidelity Simulation of the Spray Generated by a Realistic Swirling Flow Injector
(The American Society of Mechanical Engineers (ASME), 2014)Practical aeroengine fuel injection systems are highly complicated, combining complex fuel atomizer and air swirling elements to achieve good fuelair mixing and long residence time in order to enhance both the combustion ... -
Predicting the Physical and Chemical Ignition Delays in a Military Diesel Engine Running n Hexadecane Fuel
(The American Society of Mechanical Engineers (ASME), 2014)There are currently numerous efforts to create renewable fuels that have similar properties to conventional diesel fuels. One major future challenge is evaluating how these new fuels will function in older legacy diesel ... -
Bioethanol Combustion in an Industrial Gas Turbine Combustor: Simulations and Experiments
(The American Society of Mechanical Engineers (ASME), 2014)Combustion tests with bioethanol and diesel as a reference have been performed in OPRA's 2 MWe class OP16 gas turbine combustor. The main purposes of this work are to investigate the combustion quality of ethanol with ... -
Turbojet Engine Performance Tuning With a New Map Adaptation Concept
(The American Society of Mechanical Engineers (ASME), 2014)Gas turbine off design performance prediction is strictly dependent on the accuracy of compressor and turbine map characteristics. Experimental data regarding component maps are very difficult to find in literature, since ... -
Design Work of a Compressor Stage Through High To Low Speed Compressor Transformation
(The American Society of Mechanical Engineers (ASME), 2014)Lowspeed model testing has advantages such as great accuracy and low cost and risk, so it is widely used in the design procedure of the high pressure compressor (HPC) exit stage. The lowspeed model testing project is ... -
Advances in the Development of a Microturbine Engine
(The American Society of Mechanical Engineers (ASME), 2014)To reduce the size and weight of power generation machines for portable devices, several systems to replace the currently used heavy batteries are being investigated worldwide. As micro gas turbines are expected to offer ... -
Crack Initiation in 14% Cr Low Pressure Turbine Blade Steel
(The American Society of Mechanical Engineers (ASME), 2014)The impact of multiple erosion pits and crack initiation was investigated for a 500 megawatt (MW) steam turbine unit with three low pressure (LP) rotors on the steam end and generator end of the stage L0 blades. These units ... -
Nonparametric Stochastic Modeling of Structural Uncertainty in Rotordynamics: Unbalance and Balancing Aspects
(The American Society of Mechanical Engineers (ASME), 2014)This paper focuses on extending an earlier investigation on the systematic and rational consideration of uncertainty in reduced order models of rotordynamics systems. The current effort concentrates on the consistent ... -
Windage Heating in a Shrouded Rotor Stator System
(The American Society of Mechanical Engineers (ASME), 2014)This paper has experimentally and numerically studied the windage heating in a shrouded rotorstator disk system with superimposed flow. Temperature rise in the radius direction on the rotating disk is linked to the viscous ... -
Optimization of Intentional Mistuning Patterns for the Mitigation of the Effects of Random Mistuning
(The American Society of Mechanical Engineers (ASME), 2014)This paper focuses on the optimization of intentional mistuning patterns for the reduction of the sensitivity of the forced response of bladed disks to random mistuning. Intentional mistuning is achieved here by using two ... -
Forced Response Analysis of a Mistuned Compressor Blisk
(The American Society of Mechanical Engineers (ASME), 2014)The forced response of an E3Etype high pressure compressor (HPC) blisk front rotor is analyzed with regard to varying mistuning and the consideration of the fluidstructure interaction (FSI). For that purpose, a reduced ... -
Empirical Models for a Screw Expander Based on Experimental Data From Organic Rankine Cycle System Testing
(The American Society of Mechanical Engineers (ASME), 2014)The screw expander discussed in this work was part of a 50 kW organic Rankine cycle (ORC) system. The ORC was tested under different conditions in heat source and heat sink. In conjunction with collecting data for the ...