Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 4441-4460 of 9564
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Measurement of Flow Phenomena in a Lower Plenum Model of a Prismatic Gas-Cooled Reactor
(The American Society of Mechanical Engineers (ASME), 2010)Mean-velocity-field and turbulence data are presented that measure turbulent flow phenomena in an approximately 1:7 scale model of a region of the lower plenum of a typical prismatic gas-cooled ... -
Extrapolation and Curve-Fitting of Calibration Data for Differential Pressure Flow Meters
(The American Society of Mechanical Engineers (ASME), 2010)Performance test codes require primary mass-flow accuracies that in many applications require laboratory quality calibration of differential pressure meters. It is also true that many performance ... -
The Plant Feature and Performance of Double MS (Modular Simplified and Medium Small Reactor)
(The American Society of Mechanical Engineers (ASME), 2010)A new concept of a small and medium sized light water reactor, named the double MS: modular simplified and medium small reactor (DMS) was developed. The main features of the DMS relative to ... -
A Micro Gas Turbine Based Test Rig for Educational Purposes
(The American Society of Mechanical Engineers (ASME), 2010)The Thermochemical Power Group of the University of Genoa, Italy, has developed a new “Gas Turbine” laboratory to introduce undergraduate students to the Gas Turbines and Innovative Cycles course, ... -
A Monthly Publication Schedule for Journal of Engineering for Gas Turbines and Power (JEGTP)
(The American Society of Mechanical Engineers (ASME), 2010)A happy new year to all of you! I am pleased to announce that effective 1 January 2010, JEGTP will be published monthly. This is made possible because JEGTP continues to receive a large ... -
Onset of 12X Vibration and Its Prevention
(The American Society of Mechanical Engineers (ASME), 2010)This paper discusses real cases on three different machines where subsynchronous vibration occurred suddenly at a frequency exactly equal to one-half (12X) of the operational speed of 3600 rpm. ... -
Nonlinear Dynamic Analysis and Experiment Verification of Rotor-Ball Bearings-Support-Stator Coupling System for Aeroengine With Rubbing Coupling Faults
(The American Society of Mechanical Engineers (ASME), 2010)In this paper, a new rotor-ball bearings-support-stator coupling system dynamic model with rubbing coupling faults is established for practical aeroengine. In the model, the rubbing fault is ... -
Role of Platinum in Thermal Barrier Coatings Used in Gas Turbine Blade Applications
(The American Society of Mechanical Engineers (ASME), 2010)Current technology of thermal barrier coating systems used in gas turbine blade applications relies on the use of a metallic bond coat, which has a twofold function: (i) it develops a thin ... -
Micro Gas Turbine Recuperator: Steady-State and Transient Experimental Investigation
(The American Society of Mechanical Engineers (ASME), 2010)The aim of this work is the experimental analysis of a primary-surface recuperator, operating in a 100 kW micro gas turbine, as in a standard recuperated cycle. These tests, performed in both ... -
Comparison of Three Microturbine Primary Surface Recuperator Alloys
(The American Society of Mechanical Engineers (ASME), 2010)Extensive work performed by Capstone Turbine Corporation, Oak Ridge National Laboratory, and various others has shown that the traditional primary surface recuperator alloy, type 347 stainless ... -
Manufacturing Optimization for Bondcoat/Thermal Barrier Coating Systems
(The American Society of Mechanical Engineers (ASME), 2010)A reliable lifetime prediction rule for bondcoat/thermal barrier coating (BC/TBC) coated parts in gas turbine operation is necessary to determine remnant service life. The specimens investigated ... -
Effects of Coating Thickness, Test Temperature, and Coating Hardness on the Erosion Resistance of Steam Turbine Blades
(The American Society of Mechanical Engineers (ASME), 2010)This paper experimentally examines the influence of coating thickness, test temperature, coating hardness, and defects on the erosion resistance of boride coatings, ion plating CrN coatings, and ... -
A Parametric Thermodynamic Evaluation of High Performance Gas Turbine Based Power Cycles
(The American Society of Mechanical Engineers (ASME), 2010)This paper discusses the gas turbine performance enhancement approach that has gained a lot of momentum in recent years in which modified Brayton cycles are used with humidification or water/steam ... -
A Sparse Estimation Approach to Fault Isolation
(The American Society of Mechanical Engineers (ASME), 2010)Least-squares-based methods are very popular in the jet engine community for health monitoring purposes. In most practical situations, the number of health parameters exceeds the number of ... -
Ignition and Flame Speed Kinetics of Two Natural Gas Blends With High Levels of Heavier Hydrocarbons
(The American Society of Mechanical Engineers (ASME), 2010)High-pressure experiments and chemical kinetics modeling were performed to generate a database and a chemical kinetic model that can characterize the combustion chemistry of methane-based fuel ... -
Emission Characteristics of a Premixed Cyclic-Periodical-Mixing Combustor Operated With Hydrogen-Natural Gas Fuel Mixtures
(The American Society of Mechanical Engineers (ASME), 2010)The concept of the cyclic periodical mixing combustion process (, and , 2004, “Lean Blowout Limit and NOx-Production of a Premixed Sub-ppm-NOx Burner With Periodic Flue Gas Recirculation,” ... -
Determination of the Instantaneous Fuel Flow Rate Out of a Fuel Nozzle
(The American Society of Mechanical Engineers (ASME), 2010)Reported is a practical method for accurate and fast determination of the instantaneous fuel flow rate out of a fuel injector. Both gaseous and liquid fuels are considered. Unsteady fuel flow ... -
A Comparison Between Recent Advances in Cylindrical Nodal Diffusion Methods
(The American Society of Mechanical Engineers (ASME), 2010)The resurgence of high temperature reactor (HTR) technology has prompted the development and application of modern calculation methodologies, many of which are already utilized in the existing ... -
On the Performance of Very High Temperature Reactor Plants With Direct and Indirect Closed Brayton Cycles
(The American Society of Mechanical Engineers (ASME), 2010)The performance of very high temperature reactor plants with direct and indirect closed Brayton cycles (CBCs) is compared and the effects of the molecular weight of the CBC working fluid on ... -
Effect of Flame Structure on the Flame Transfer Function in a Premixed Gas Turbine Combustor
(The American Society of Mechanical Engineers (ASME), 2010)The flame transfer function in a premixed gas turbine combustor is experimentally determined. The fuel (natural gas) is premixed with air upstream of a choked inlet to the combustor. Therefore, ...