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 15 of 15 for “"vertical axis wind turbines"”.
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Optimized design of aerodynamic airfolis for vertical axis wind turbines
… increasing over the past years. Nowadays, wind energy represents one of the most economical options, employing a totally mature harvesting technology. Due to their higher energy output, horizontal-axis wind turbines have been traditionally the preferred option. Nevertheless, vertical-axis …
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Aerodynamic Enhancement and Reduced Order Modeling of Vertical Axis Wind Turbines
Vertical-axis wind turbines (VAWTs) are recognized as a viable solution for wind energy harvesting. This study discusses VAWT performance in different aspects. First, using computational fluid dynamics (CFD) simulations, the impact of various deflector angles as an auxiliary augmentation on turbine …
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Analysis and Improvement of Aerodynamic Performance of Straight Bladed Vertical Axis Wind Turbines
Vertical axis wind turbines (VAWTs) with straight blades are attractive for their relatively simple structure and aerodynamic performance. Their commercialization, however, still encounters many challenges. A series of studies were conducted in the current research to improve the VAWTs design and …
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Numerical modeling of floating vertical axis wind turbines for offshore renewable energy generation
L'abstract è presente nell'allegato / the abstract is in the attachment
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Design and construction of vertical axis wind turbines using dual-layer vacuum-forming
How does one visualize wind? Is it the way trees bend in a strong gust or the way smoke is carried in a breeze? What if wind could be visualized using design, technology, and light? This thesis documents the design of a large scale display of vertical axis wind turbines that can be used to …
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Renewable Energy Integration in NYC Subway: Solar Panels (Under Railroads and at the Subway's Edge) & Vertical Axis Wind Turbines (VAWTs) Near Tracks
… railroads, solar panels alongside tracks, and vertical axis wind turbines (VAWTs) alongside the tracks. This will reduce, at a certain point, the dependence on Con Edison for high energy demand and show a commitment to sustainability and environmental stewardship.This thesis explores the …
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Effects of blade configuration on flow distribution and power output of a zephyr vertical axis wind turbine.
… concerns like climate change and other factors. Wind power is a major source of sustainable energy, and can be harvested using both horizontal and vertical axis wind turbines. This thesis presents studies of a vertical axis wind turbine performance for applications in urban areas. Numerical …
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Aerodynamic performance evaluation of multi inner blades savonius rotor
Savonius wind turbine is the cheapest and simplest type of vertical axis wind turbines. This turbine is being utilized in various countries due to the simplistic design and low construction cost. However, this turbine suffers from low efficiency. For that, this study aims to increase the …
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CFD Analysis for Optimization of Vertical Axis Wind Turbine Farms
Vertical Axis Wind Turbines (VAWT) have gained more importance due to their compactness, adaptability and ease of installation. However, the efficiency of VAWT is much lesser than that of Horizontal Axis Wind Turbine (HAWT). Substantial research is going on to improve the efficiency of VAWT. One of …
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Optimization of Renewable Energy Siting Decisions through Vertical Axis Wind Turbine Integration
The rapid increase in wind energy deployment is critical to achieving net-zero carbon emissions in the United States. However, conventional Horizontal Axis Wind Turbines (HAWTs) face deployment constraints due to their large spatial requirements stemming from their size itself and turbine spacing …
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POWER CONDITIONING UNIT FOR SMALL SCALE HYBRID PV-WIND GENERATION SYSTEM
… reduce the cost of manufacturing. Solar and wind energies, among other renewable energy sources, are the most available ones globally. The hybrid photovoltaic (PV) and wind power system has a higher capability to deliver continuous power with reduced energy storage requirements and therefore …
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Assessing the potential for urban wind energy in Cape Town
… it has been argued that small-scale Urban Wind Energy (UWE) could have the potential to provide a significant portion of the electricity demand for urban areas. However there is currently a lack of knowledge surrounding the realisable potential for UWE, especially in the South African …
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Optimization of Wind Turbine Airfoils/Blades and Wind Farm Layouts
… optimization is widely used in the design of wind turbine blades. In this dissertation, a numerical optimization method called Genetic Algorithm (GA) is applied to address the shape optimization of wind turbine airfoils and blades. In recent years, the airfoil sections with blunt trailing edge …
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Vertical axis wind turbine acoustics
… decentralised power generation. Small-scale wind power has seen significant growth in the last ten years, partly due to the political support for renewable energy and the introduction of Feed In Tariffs, which pay home owners for generating their own electricity. Due to their ability to …
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Experimental Investigations into the Fluid Dynamics and Forcing Underlying Cross-flow Turbine Operation
Within the wind and marine energy sectors, axial-flow (i.e., horizontal axis) turbines are a well-established and well-understood approach to converting the kinetic energy in a moving fluid to electricity. Recent cross-flow (i.e., vertical axis) turbine research has yielded substantial performance …