Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 4241-4260 of 9564
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Examination of Initialization and Geometric Details on the Results of CFD Simulations of Diesel Engines
(The American Society of Mechanical Engineers (ASME), 2011)Computational fluid dynamic simulations using the AVL FIRE and KIVA 3V codes were performed to examine commonly accepted techniques and assumptions used when simulating direct injection diesel ... -
Effect of Simulated Combustor Temperature Nonuniformity on HP Vane and End Wall Heat Transfer: An Experimental and Computational Investigation
(The American Society of Mechanical Engineers (ASME), 2011)This paper presents experimental measurements and computational predictions of surface and end wall heat transfer for a high-pressure (HP) nozzle guide vane operating as part of a full HP turbine ... -
Erratum: “A Thermodynamic Analysis of Tubular Solid Oxide Fuel Cell Based Hybrid Systems” [ASME Journal of Engineering for Gas Turbines and Power, 2003, 125(1), pp. 59–66]
(The American Society of Mechanical Engineers (ASME), 2011)Table 1 should read as follows: -
On Thermal Performance of Seawater Cooling Towers
(The American Society of Mechanical Engineers (ASME), 2011)Seawater cooling towers have been used since the 1970s in power generation and other industries, so as to reduce the consumption of freshwater. The salts in seawater are known to create a ... -
A Methodology for Predicting the Response of Blades With Nonlinear Coatings
(The American Society of Mechanical Engineers (ASME), 2011)Ceramic coatings applied by air plasma spray or electron beam techniques as thermal barrier coatings or to improve the erosion or corrosion resistance of blades in gas turbine engines are found ... -
Design and Performance Prediction of Hybrid Air Foil Thrust Bearings
(The American Society of Mechanical Engineers (ASME), 2011)Air foil bearings (AFBs) have been recognized as the most promising for oil-free turbomachinery. However, the applications of AFBs to the relatively large turbomachinery have many technical ... -
Remaining Technical Challenges and Future Plans for Oil-Free Turbomachinery
(The American Society of Mechanical Engineers (ASME), 2011)The application of oil-free technologies (foil gas bearings, solid lubricants, and advanced analysis and predictive modeling tools) to advanced turbomachinery has been underway for several decades. ... -
Rotordynamic Force Prediction of Centrifugal Compressor Impellers Using Computational Fluid Dynamics
(The American Society of Mechanical Engineers (ASME), 2011)The energy industry depends on centrifugal compressors to produce, process, reinject, and transport many different gases. Centrifugal compressors use one or more impellers to impart momentum to ... -
Importance of Auxiliary Power Consumption for Combined Cycle Performance
(The American Society of Mechanical Engineers (ASME), 2011)The key product of a combined cycle power plant is electric power generated for industrial, commercial, and residential customers. In that sense, the key performance metric that establishes the ... -
Influence of Titanium in Nickel-Base Superalloys on the Performance of Thermal Barrier Coatings Utilizing γ−γ′ Platinum Bond Coats
(The American Society of Mechanical Engineers (ASME), 2011)Titanium is a key element in nickel-base superalloys needed with aluminum to achieve the desired volume fraction of the strengthening γ′-phase. However, depending upon its concentration, titanium ... -
An Experimental System for Assessing Combustor Durability
(The American Society of Mechanical Engineers (ASME), 2011)Modern gas turbine combustors are made of high temperature alloys, employ effusion cooling, and are protected by a thermal barrier coating (TBC). Gas turbine combustor failure modes, such as ... -
Development of a 3 kW Microturbine for CHP Applications
(The American Society of Mechanical Engineers (ASME), 2011)Combined heat and power (CHP) concepts for small-scale distributed power generation offer significant potential for saving energy and reducing CO2 emissions. Microturbines are an interesting candidate ... -
Novel High-Performing Single-Pressure Combined Cycle With CO2 Capture
(The American Society of Mechanical Engineers (ASME), 2011)The European electric power industry has undergone considerable changes over the past two decades as a result of more stringent laws concerning environmental protection along with the deregulation ... -
Stall Warning in a Low-Speed Axial Fan by Visualization of Sound Signals
(The American Society of Mechanical Engineers (ASME), 2011)This study describes the development of a novel stall-detection methodology for low-speed axial-flow fans. Because aerodynamic stall is a major potential cause of mechanical failure in axial fans, ... -
Primary Surface Recuperator Alloy Oxidation: A Comparison of Accelerated Engine Testing to Field Operation
(The American Society of Mechanical Engineers (ASME), 2011)The Capstone C65 Microturbine primary surface recuperator (PSR) core has been manufactured from Haynes alloy HR-120 since 2005 (Microturbine is a registered trademark of Capstone Turbine Corporation; ... -
Computational Evaluation of Adhesion and Mechanical Properties of Nanolayered Erosion-Resistant Coatings for Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2011)A computational method to evaluate fracture toughness of prospective erosion-resistant coatings using a combination of first-principles density functional theory (DFT) calculations and fracture ... -
Investigations and Countermeasures for Deactivation of Hydrogen Recombination Catalyst at Hamaoka Units 4 and 5
(The American Society of Mechanical Engineers (ASME), 2011)The hydrogen concentration in the outlets of off-gas recombiners increased at Hamaoka Units 4 and 5, and their reactors could not continue the startup operations. Therefore, we investigated why ... -
Understanding Ice Crystal Accretion and Shedding Phenomenon in Jet Engines Using a Rig Test
(The American Society of Mechanical Engineers (ASME), 2011)The aviation industry has now connected a number of engine power-loss events to the ingestion of atmospheric ice crystals. Ice crystals are believed to penetrate to and eventually accrete on ... -
LES Predictions of Noise Emissions From a Low-Bypass Ratio Military Gas Turbine Engine
(The American Society of Mechanical Engineers (ASME), 2011)A practical framework for predicting jet structure and noise from military aircraft is described, which is developmental and has been examined for some fundamental jet flow problems. The framework ... -
Discussion: “Rotordynamic Force Prediction of Centrifugal Compressor Impellers Using Computational Fluid Mechanics” by J. J. Moore, D. L. Ransom, and F. Viana
(The American Society of Mechanical Engineers (ASME), 2011)The authors are to be commended for an interesting demonstration of computational fluid dynamics (CFD) methods in the analysis of rotordynamic forces for impellers in centrifugal compressors. CFD ...