Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 6361-6380 of 9564
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Diesel Engine Smoke Reduction by Controlling Early Thermal Cracking Process and Activation Later Stage Combustion
(The American Society of Mechanical Engineers (ASME), 1998)In this investigation, extensive soot reduction was attempted with two parallel approaches: blending of oxygenated fuel and generation of strong turbulence during the combustion process. In the ... -
Optimum Cylinder Cooling for Advanced Diesel Engines
(The American Society of Mechanical Engineers (ASME), 1998)Continuous demand for higher specific engine output simultaneously introduces problems of higher mechanical and thermal stresses of the engine components. Uneven temperature distribution in the ... -
Model Based Fuzzy Logic Sensor Fault Accommodation
(The American Society of Mechanical Engineers (ASME), 1998)Sensor in-range fault accommodation is a fundamental challenge of dual channel control systems in modern aircraft gas turbine engines. An on-board, real-time engine model can be used to provide ... -
An Efficient Computational Model for Premixed Turbulent Combustion at High Reynolds Numbers Based on a Turbulent Flame Speed Closure
(The American Society of Mechanical Engineers (ASME), 1998)Theoretical background, details of implementation, and validation results for a computational model for turbulent premixed gaseous combustion at high turbulent Reynolds numbers are presented. The ... -
Environmental Influence on the Thermoeconomic Optimization of a Combined Plant With NOx Abatement
(The American Society of Mechanical Engineers (ASME), 1998)Methods to analyze, improve, and optimize thermal energy systems have to take into account not only energy (exergy) consumption and economic resources, but also pollution and degradation of the ... -
Blade Fault Recognition Based on Signal Processing and Adaptive Fluid Dynamic Modeling
(The American Society of Mechanical Engineers (ASME), 1998)An approach for identification of faults in blades of a gas turbine, based on physical modelling, is presented. A measured quantity is used as an input, and the deformed blading configuration ... -
Heavy-Duty Gas Turbine Plant Aerothermodynamic Simulation Using Simulink
(The American Society of Mechanical Engineers (ASME), 1998)This paper presents a physical simulator for predicting the off-design and dynamic behavior of a single shaft heavy-duty gas turbine plant, suitable for gas-steam combined cycles. The mathematical ... -
Dual Brayton Cycle Gas Turbine Pressurized Fluidized Bed Combustion Power Plant Concept
(The American Society of Mechanical Engineers (ASME), 1998)High generating efficiency has compelling economic and environmental benefits for electric power plants. There are particular incentives to develop more efficient and cleaner coal-fired power plants ... -
Thickness Measurement of MCrAlY High-Temperature Coatings by Frequency Scanning Eddy Current Technique
(The American Society of Mechanical Engineers (ASME), 1998)Nondestructive characterization of nonserviced, high-temperature coatings can be considered one of the important factors to achieve a higher level of structural integrity of advanced gas turbines. ... -
Experimental Investigation and Mathematical Modeling of Clearance Brush Seals
(The American Society of Mechanical Engineers (ASME), 1998)In this paper, an experimental program and a CFD based mathematical model using a brush seal at two bristle to rotor clearances (0.27 mm and 0.75 mm) are presented. The experimental program ... -
Aspects of Jet Fuel Oxidation
(The American Society of Mechanical Engineers (ASME), 1998)A quartz crystal microbalance (QCM)/Parr bomb system with a headspace oxygen sensor is used to measure oxidation and deposition during thermal oxidative stressing of jet fuel. The advantages of ... -
High Pressure Test Results of a Catalytic Combustor for Gas Turbine
(The American Society of Mechanical Engineers (ASME), 1998)Recently, the use of gas turbine systems, such as combined cycle and cogeneration systems, has gradually increased in the world. But even when a clean fuel such as LNG (liquefied natural gas) ... -
Gas Turbine Exhaust Emissions Monitoring Using Nonintrusive Infrared Spectroscopy
(The American Society of Mechanical Engineers (ASME), 1998)Infrared (IR) spectra of the exhaust emissions from a static gas turbine engine have been studied using Fourier Transform (FT) spectroscopic techniques. Passive detection of the infrared emission ... -
The Meaning of Activation Energy and Reaction Order in Autoaccelerating Systems
(The American Society of Mechanical Engineers (ASME), 1998)Global reaction mechanisms and rate constants are commonly used in computational fluid dynamics models that incorporate chemical reactions to study aviation fuel thermal and oxidative thermal ... -
Effect of Pressure on Emission Characteristics in LBG-Fueled 1500°C-Class Gas Turbine
(The American Society of Mechanical Engineers (ASME), 1998)Developing integrated coal gasification combined cycle (IGCC) systems ensures cost-effective and environmentally sound options for supplying future power generation needs. In order to enhance thermal ... -
A Semi-Analytical Finite Rate Two-Reactor Model for Gas Turbine Combustors
(The American Society of Mechanical Engineers (ASME), 1998)A gas turbine combustor is modeled using a two-reactor, finite-rate mixing and chemistry gas particle approach. The first reactor, used to simulate combustion in the primary zone, permits ... -
Effect of Swirl on Combustion Characteristics in Premixed Flames
(The American Society of Mechanical Engineers (ASME), 1998)A double concentric premixed swirl burner is used to examine the structure of two different methane-air premixed flames. Direct flame photography together with local temperature data provides an ... -
Effect of Fuel Moisture Content on Biomass-IGCC Performance
(The American Society of Mechanical Engineers (ASME), 1998)The moisture level in biomass fuels potentially impacts efficiency in conversion to power. This paper examines the efficiency and net power output of a fluidized bed gasifier-combined cycle with ... -
A Direct Coal-Fired Combustion Turbine Power System Based on Slagging Gasification With In-Situ Gas Cleaning
(The American Society of Mechanical Engineers (ASME), 1998)Westinghouse began the development of a compact, entrained, slagging gasifier technology utilizing in-situ fuel gas cleaning for combustion turbine power cycles in 1986. The slagging gasifier is ... -
Numerical Simulations of Nonreacting Flows for Industrial Gas Turbine Combustor Geometries
(The American Society of Mechanical Engineers (ASME), 1998)This study evaluates the application of the computational fluid dynamics (CFD) to calculate the flowfields in industrial combustors. Two-burner test cases, which contain the elemental flow ...