Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 6121-6140 of 9564
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The Role of Carbon Monoxide in NO2 Plume Formation
(The American Society of Mechanical Engineers (ASME), 2000)Through a series of computational studies, carbon monoxide has been identified as an important promoter of NO oxidation to NO2 in combustion turbine exhaust gas at intermediate temperatures (450 ... -
Preliminary Economics of Black Liquor Gasifier/Gas Turbine Cogeneration at Pulp and Paper Mills
(The American Society of Mechanical Engineers (ASME), 2000)Black liquor, the lignin-rich byproduct of kraft pulp production, is burned in boiler/steam turbine cogeneration systems at pulp mills today to provide heat and power for onsite use. Black ... -
Performance of a Reduced NOx Diffusion Flame Combustor for the MS5002 Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2000)This paper describes a reduced NOx diffusion flame combustor that has been developed for the MS5002 gas turbine. Laboratory tests have shown that when firing with natural gas, without water ... -
Industrial Trent Combustor—Combustion Noise Characteristics
(The American Society of Mechanical Engineers (ASME), 2000)Thermoacoustic resonance is a difficult technical problem that is experienced by almost all lean-premixed combustors. The Industrial Trent combustor is a novel dry-low-emissions (DLE) combustor ... -
Fuel Gas Cleanup Parameters in Air-Blown IGCC
(The American Society of Mechanical Engineers (ASME), 2000)Fuel gas cleanup processing significantly influences overall performance and cost of IGCC power generation. The raw fuel gas properties (heating value, sulfur content, alkali content, ammonia ... -
A New Technique for Identifying Synchronous Resonances Using Tip-Timing
(The American Society of Mechanical Engineers (ASME), 2000)Non-contact measurement of vibration at turbomachinery rotor blade tips using blade tip-timing has become an industry-standard procedure. Current research focuses on analysis methods for interpretation ... -
Exposure of Ceramics and Ceramic Matrix Composites in Simulated and Actual Combustor Environments
(The American Society of Mechanical Engineers (ASME), 2000)A high-temperature, high-pressure, tube furnace has been used to evaluate the long term stability of different monolithic ceramic and ceramic matrix composite materials in a simulated combustor ... -
Active Control of Discrete-Frequency Turbomachinery Noise Using a Rotary-Valve Actuator
(The American Society of Mechanical Engineers (ASME), 2000)Turbomachine discrete-frequency tones, a significant environmental concern, are generated by rotor-stator interactions. Specific spatial modes are generated, but not all generated modes propagate to ... -
Stress Relaxation Testing as a Basis for Creep Analysis and Design of Silicon Nitride
(The American Society of Mechanical Engineers (ASME), 2000)A new approach to tensile creep testing and analysis based on stress relaxation is described for sintered silicon nitride. Creep rate data covering up to five orders of magnitude were generated ... -
Exergy Analysis of Combined Cycles Using Latest Generation Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2000)The potential performance of optimized gas-steam combined cycles built around latest-generation gas turbine engines is analyzed, by means of energy/exergy balances. The options here considered are ... -
Full Load and Part-Load Performance Prediction for Integrated SOFC and Microturbine Systems
(The American Society of Mechanical Engineers (ASME), 2000)During the last years, two new subjects among the others have raised interest in the field of small scale electric power generation: advanced microturbines and solid oxide fuel cells. This ... -
Advances in Oxide-Oxide CMC
(The American Society of Mechanical Engineers (ASME), 2000)Recent advances in COI’s oxide–oxide CMC materials will be presented including basic processing steps, updated material properties, and fabrication techniques. Material properties of COI’s ... -
Discussion: “Internal Bearing Chamber Wall Heat Transfer as a Function of Operating Conditions and Chamber Geometry” [ASME J. Eng. Gas Turbines Power, 122, No. 2, pp. 314–320]1
(The American Society of Mechanical Engineers (ASME), 2000)The subject under investigation is very important to the gas turbine industry, and the derivation of a correlation for the oil chamber wall heat transfer coefficient is long past overdue. The ... -
Actively Controlled Bearing Dampers for Aircraft Engine Applications
(The American Society of Mechanical Engineers (ASME), 2000)This paper describes some of the requirements for bearing dampers to be used in an aircraft engine and briefly discusses the pros and cons of various types of dampers that were considered ... -
Pioneering Turbojet Developments of Dr. Hans Von Ohain—From the HeS 1 to the HeS 011
(The American Society of Mechanical Engineers (ASME), 2000)On March 13, 1998, Dr. Hans Joachim Pabst von Ohain, co-inventor of the turbojet, passed away at the age of 86. As a young doctoral student, von Ohain conceived of and built a demonstrator ... -
Experimental Investigation to Study Convective Mixing, Spatial Uniformity, and Cycle-to-Cycle Variation During the Intake Stroke in an IC Engine
(The American Society of Mechanical Engineers (ASME), 2000)The work described in this paper focuses on experiments to quantify the initial fuel mixing and gross fuel distribution in the cylinder during the intake stroke and its relationship to the ... -
Vapor Phase Lubrication for Expendable Gas Turbine Engines
(The American Society of Mechanical Engineers (ASME), 2000)Vapor phase lubrication (VPL) is an emerging technology that is currently targeted for application in limited life, expendable engines. It has the potential to cut 90 percent of the cost and ... -
Dynamic Coefficients of Stepped Labyrinth Gas Seals
(The American Society of Mechanical Engineers (ASME), 2000)Rotor-fluid interactions can cause self-excited shaft vibrations of high density turbomachinery. Often the amplitude of the vibrations reaches unacceptably high amplitudes and the scheduled power ... -
Studies of Spray Breakup and Mixture Stratification in a Gasoline Direct Injection Engine Using KIVA-3V
(The American Society of Mechanical Engineers (ASME), 2000)The Low Pressure spray Breakup (LPB) model of Papageorgakis and Assanis has been implemented in the multi-dimensional code KIVA-3V as an alternative to the standard Taylor Analogy Breakup (TAB) ... -
Feasibility of Contact Elimination of a Mechanical Face Seal Through Clearance Adjustment
(The American Society of Mechanical Engineers (ASME), 2000)The feasibility of eliminating contact in a noncontacting flexibly mounted rotor (FMR) mechanical face seal is studied. The approach for contact elimination is based on a parametric study using ...