Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1551 for “"Turbine"”.
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Radial-turbine mistuning
… turbochargers is high-cycle fatigue of the turbine-wheel blades. Mistuning of the blades due to the casting process is believed to contribute to this failure mode. A laser vibrometer is used to characterize mistuning for a population of turbine wheels through the analysis of the …
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The Swain Turbine
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1874
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The impact of evaporatively cooled turbine blades on gas turbine performance
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1995.
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Effect of turbine motion on floating off shore wind turbine aerodynamics
… and its push for larger and more efficient wind turbines, especially in offshore environments. Floating Offshore Wind Turbines (FOWTs) are a promising alternative for capturing high wind energy potential in more difficult offshore environments that pose challenges to traditional bottom-fixed …
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The Effect of Blade Aeroelasticity and Turbine Parameters on Wind Turbine Noise
… well as the number and size of commercial wind turbines. These large turbines are loud and can cause annoyance to nearby communities. Therefore, the prediction of large wind turbine noise over long distances is critical. The wind turbine noise prediction is a very complex problem since it has to …
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Flow Field Computations of Combustor-Turbine Interactions in a Gas Turbine Engine
The current demands for higher performance in gas turbine engines can be reached by raising combustion temperatures to increase thermal efficiency. Hot combustion temperatures create a harsh environment which leads to the consideration of the durability of the combustor and turbine sections. …
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Modelling Gas Turbine Degradation
… of hot corrosion and related phenomenon in gas turbines using Reynolds-averaged Navier Stokes (RANS) computational fluid dynamics (CFD) simulations. Non-uniform distribution of gaseous species as a result of film coolant injection was observed on a simple single hole test case. RANS simulation …
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Gas turbine blade cooling
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1947.
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Structural Analyses of Wind Turbine Tower for 3 kW Horizontal Axis Wind Turbine
… of a steel tower for Cal Poly's 3 kW small wind turbine is presented. First, some general design aspects of the wind turbine tower are discussed: types, heights, and some other factors that can be considered for the design of wind turbine tower. Then, Cal Poly's wind turbine tower design is …
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Vertical Axis Hybrid Wind Turbine
… and practicality of vertical axis hybrid wind turbines (VAHWTs) for sustainable electricity generation and investigate the self-starting issue of VAWT. The development of sustainable energy sources has become increasingly critical in recent years because of growing worries about climate change, …
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The smart rotor wind turbine
The smart rotor is an upgrade to the wind turbine rotor that facilitates active modification of the blade aerodynamics, thus allowing enhanced control of the rotor loads. In this thesis a number of research areas relating to the smart rotor are explored and advanced. The synthesised wind field …
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Vertical axis wind turbine acoustics
… wind conditions, small-scale vertical axis wind turbines (VAWTs) have been proposed as an efficient solution for deployment in built up areas, where the wind is more gusty in nature. If VAWTs are erected in built up areas they will be inherently close to people; consequently, public acceptance of …
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Turbine tip clearance loss mechanisms
… design features, and of aspects of the actual turbine environment, on turbine blade tip loss. The calculations were carried out for a subsonic high pressure turbine stage. The loss mechanism examined is that due to tip clearance vortex mixing. The effects examined were three-dimensional blade …
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Effects of shock wave passing on turbine blade heat transfer in a transonic turbine cascade
… a blade passage on surface heat transfer to turbine blades were measured experimentally. The experiments were performed in a transonic linear cascade which matched engine Reynolds number, Mach number, and shock strength. Unsteady heat flux measurements were made with Heat Flux Microsensors on …
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Humidification Processes in Gas Turbine Cycles
… improving the environmental performance of gas turbines. The potential of improving gas turbine component efficiencies has become smaller each decade and therefore, thermodynamic cycles have become more interesting for power producing units. One of these cycles is the evaporative gas turbine …
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A Unified Turbine Preliminary Design Study
… information about the various loss mechanisms, turbine characteristics and how both change through out the design parameter space. This thesis builds on the pre existing work by mapping out design parameter spaces using computation methods, more specifically using a Reynolds averaged Navier …
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THE ECONOMICS OF GAS TURBINE COGENERATION.
… viability of cogeneration. Employing a gas turbine system as a representative installation, the variables used in the sensitivity study are presented along with the justification for the assignment of the baseline and study range values. A simplified method for analyzing the profitability of …
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