Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 2941-2960 of 9564
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Segmentation Effects on Brush Seal Leakage and Rotordynamic Coefficients
(The American Society of Mechanical Engineers (ASME), 2016)This paper studies the effect of brush seal segmentation on the seal performance characteristics. A brush–labyrinth sealing configuration arranged of one brush seal downstream and two labyrinth fins upstream is studied ... -
Assessment of Unsteady Pressure Measurement Uncertainty—Part I: Single Sensor Probe
(The American Society of Mechanical Engineers (ASME), 2016)With the advancements in miniaturization and temperature capabilities of piezoresistive pressure sensors, pneumatic probes—which are the long established standard for flowpath pressure measurements in gas turbine ... -
Assessment of Unsteady Pressure Measurement Uncertainty—Part II: Virtual Three Hole Probe
(The American Society of Mechanical Engineers (ASME), 2016)With the advancements in miniaturization and temperature capabilities of piezoresistive pressure sensors, pneumatic probes—which are the long established standard for flowpath pressure measurements in gas turbine ... -
Engineering Approach for Low Cycle Fatigue Assessment of Porous Alloys
(The American Society of Mechanical Engineers (ASME), 2016)Most components used in gas and steam turbines are metallic parts produced by either casting or forging processes. Although process control works to eliminate defects, there can be variation in microporosity from component ... -
Computational Fluid Dynamics Investigation of Labyrinth Seal Leakage Performance Depending on Mushroom Shaped Tooth Wear
(The American Society of Mechanical Engineers (ASME), 2016)Conventional labyrinth seal applications in turbomachinery encounter a permanent teeth tip damage and wear during transitional operations. This is the dominant issue that causes unpredictable seal leakage performance ... -
Computational Fluid Dynamics Investigation of Brush Seal Leakage Performance Depending on Geometric Dimensions and Operating Conditions
(The American Society of Mechanical Engineers (ASME), 2016)Brush seals require custom design and tailoring due to their behavior driven by flow dynamic, which has many interacting design parameters, as well as their location in challenging regions of turbomachinery. Therefore, ... -
High Resolution Particle Image Velocimetry and CH PLIF Measurements and Analysis of a Shear Layer Stabilized Flame
(The American Society of Mechanical Engineers (ASME), 2016)Understanding the mechanisms and physics of flame stabilization and blowoff of premixed flames is critical toward the design of high velocity combustion devices. In the high bulk flow velocity situation typical of practical ... -
Experimental Analysis of Floating Ring Annular Seals and Comparisons With Theoretical Predictions
(The American Society of Mechanical Engineers (ASME), 2016)Floating ring annular seals represent one of the solutions for controlling leakage in highspeed rotating machinery. They are generally made of a carbon ring mounted in a steel ring for preserving their integrity. Low leakage ... -
Investigations of the Stabilities of Piloted Flames Using Blast Furnace Gas
(The American Society of Mechanical Engineers (ASME), 2016)The effective utilization of lowgrade energy sources generated from steelmaking processes provides not only excellent opportunities for low cost power generation but also a significant means for the reduction of greenhouse ... -
Effects of Crossflow on Impingement Heat Transfer
(The American Society of Mechanical Engineers (ASME), 1972)An experimental study of the effects of a cross-flowing air stream on the heat transfer characteristics of single lines of circular air jets impinging on plane surfaces is presented. The study ... -
Systematic Fluid Selection for Organic Rankine Cycles and Performance Analysis for a Combined High and Low Temperature Cycle
(The American Society of Mechanical Engineers (ASME), 2016)The organic Rankine cycle (ORC) is an established thermodynamic process that converts waste heat to electric energy. Due to the wide range of organic working fluids available the fluid selection adds an additional ... -
Short Helical Combustor: Concept Study of an Innovative Gas Turbine Combustor With Angular Air Supply
(The American Society of Mechanical Engineers (ASME), 2016)An innovative design of a gas turbine annular combustor is investigated analytically and numerically. Its principal feature is the helical arrangement of the burners around the turbine shaft. Hence, a shorter combustor ... -
Application of a Creep Damage Constitutive Model for the Rotor of a 1000 MW Ultrasupercritical Steam Turbine
(The American Society of Mechanical Engineers (ASME), 2016)A damagebased creep constitutive model for a wide stress range is applied to the creep analysis of a 1000 MW ultrasupercritical steam turbine, the inlet steam of which reaches 600 آ°C and 35 MPa. In this model, the ... -
Numerical Investigations for Leakage and Windage Heating in Straight Through Labyrinth Seals
(The American Society of Mechanical Engineers (ASME), 2016)The ability to quantify leakage flow and windage heating for labyrinth seals with honeycomb lands is critical in understanding gas turbine engine system performance and predicting its component life. Variety of labyrinth ... -
Analysis of Measured Flame Transfer Functions With Locally Resolved Density Fluctuation and OH Chemiluminescence Data
(The American Society of Mechanical Engineers (ASME), 2016)The goal of this study is to analyze flame transfer functions (FTFs) locally by quantifying the heat release rate with OH*chemiluminescence and density fluctuation measurements using laser vibrometry. In this study, both ... -
Unsteady Wet Steam Flow Field Measurements in the Last Stage of Low Pressure Steam Turbine
(The American Society of Mechanical Engineers (ASME), 2016)Modern steam turbines need to operate efficiently and safely over a wide range of operating conditions. This paper presents a unique unprecedented set of timeresolved steam flowfield measurements from the exit of the last ... -
Methodology to Correct the Magnetic Field Effect on Thin Film Measurements
(The American Society of Mechanical Engineers (ASME), 2016)Machined ferrous metal components may carry a magnetic field, which in rotation disturb the output of electrical sensors. To minimize the effect on the electrical instrumentation, the rotating components are usually ... -
Evaluation and Development of Engine Components and Accessories With Electrodynamic Shakers
(The American Society of Mechanical Engineers (ASME), 1972)The electrodynamic shaker is a useful tool in the evaluation and development of engine components and accessories. As the shaker vibratory input to the component fixture or the engine assembly ... -
An Annular Pulsed Detonation Combustor Mockup: System Identification and Misfiring Detection
(The American Society of Mechanical Engineers (ASME), 2016)An annular pulsed detonation combustor (PDC) basically consists of a number of detonation tubes which are firing in a predetermined sequence into a common downstream annular plenum. Fluctuating initial conditions and ... -
Synthesis of Experimental and Theoretical Analysis of Pneumatic Hammer Instability in an Aerostatic Bearing
(The American Society of Mechanical Engineers (ASME), 2016)The present work is focused on the pneumatic hammer instability in an aerostatic bearing with shallow recesses and orifices of four different diameters. Operating conditions were zero rotation speed, zero load, and different ...