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 41 for “"Tidal energy"”.
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Tidal Energy, Underwater Noise and Marine Mammals
Sourcing energy from renewable sources is currently a key theme in modern society. Consequently, the pace of development of these emerging technologies is likely to increase in the near future, particularly in marine renewables. However, the environmental and ecological impact of many of these new …
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Modeling Flows for Assessing Tidal Energy Generation Potential
Tidal energy is a clean, sustainable, reliable, predictable source of energy. Recent developments in underwater turbines have made harvesting tidal energy feasible. Determining the power potential available in a given water body can be accomplished by using numerical hydraulic models to predict the …
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Harnessing tidal energy for power generation in South Africa
Submitted in the fulfilment of the requirements for the degree of Master of Engineering in Electrical Power Engineering, Durban University of Technology, Durban, South Africa, 2020.
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Seabird use of tidal stream environments and potential interactions with tidal energy devices
… electricity production demand from renewable energy sources such as tidal streams. However, tidal stream environments are also important habitats for marine wildlife, including seabirds. Risk of collision and habitat displacement are the major negative effects of concern. The following thesis …
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Developing a simulation-based approach to collision risk of tidal energy converters and marine wildlife
Tidal energy has the potential to form an important part of renewable energy production, helping to reach global targets, such as those outlined in the Paris Agreement. The predictable nature of tides offers a reliable supply of renewable energy, making tidal energy converters (TECs) a desirable …
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Should Tidal Energy Projects be run by the Public Sector? An Examination of Natural Resources Wales
This dissertation explores the question, “Should tidal energy projects be run by the public sector?” with a specific focus on the role of Natural Resources Wales in how tidal energy projects can be most effectively managed and developed in Wales. The study uses a mixed-methods approach, by …
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Legal and policy gaps in Nigeria's renewable energy framework: a case for wave and tidal energy.
Nigeria's wave and tidal energy resources remain underdeveloped, unlike other renewable energy resources such as bioenergy, hydropower, solar and wind, which have witnessed limited development. In essence, the research problem is how to justify the necessity for harnessing wave and tidal energy …
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Learning from Early Commercial Tidal Energy Projects in the Puget Sound, Washington and the Pentland Firth, Scotland
… study explores two of the first multiple-device tidal energy projects to identify the key learning outcomes gained by stakeholders. The cases chosen are the Snohomish County Public Utility District’s Admiralty Inlet pilot project in Puget Sound, Washington, United States, and MeyGen Ltd.’s Phase …
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Response of suction caissons in soft clay under vertical and horizontal loading for tidal energy converter applications
… has driven the research and use of renewable energy sources both on and offshore. Of the available offshore renewable energy resources, the tidal current serves as a promising and consistent source of energy due to its dependence on the rotation of the earth and the orbit of both the earth and …
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An assessment of tidal energy and the environmental response to extraction at a site in the Pentland Firth
Shelf tidal streams are accelerated by coastal features, such as headlands and islands. In the search for sustainable forms of electricity generation, such locations may become attractive for tidal stream power. For many prospective sites, however, little is known about the intricacies of the local …
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Benthic habitats in a tide-swept channel of the Pentland Firth and their potential responses to a tidal energy development
… impacts arising from the de- ployment of tidal energy devices (TEDs) at a key tidal energy development site. An extensive field campaign was undertaken to collect fine-scale, in-situ data for local hydrodynamics, seabed<br/>structure and epibenthic assemblages. Data from a two-dimensional …
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The transfer of oil and gas technology skills to the conceptual design and development of a novel low cost modular Tidal Energy Conversion deployment system.
This thesis outlines the use of a new design of Tidal Energy Conversion device which has application in near shore shallow water. The design is applicable for use by coastal communities, either to generate revenue through power sales or just a stand alone system to generate off grid electricity. …
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Integrating Social Concerns Into Regional Renewable Energy Resource Assessments: A Case Study in Rigolet, NL, Canada
… to integrating social concerns regarding energy development into renewable energy resource assessment. An extensive literature review of the social aspects of energy identifies five perspectives (acceptability, social license, energy justice, community energy, Indigenous criticism) that …
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Development of an experimental methodology for appraising the dynamic response of tethered tidal turbines
… different station keeping structures to support tidal energy converters. It was observed that the use of flexibly tethered turbines would be beneficial due to low material costs and the capability to permit the turbine's self alignment to the flow regime. However, because of the uncertainties …
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Adaptive Composite Blades for Horizontal Axis Tidal Turbines
The oceans are a huge resource of untapped energy. There are many marine renewable energy sources however tidal energy has the advantage of being highly predictable. The range of devices for tidal energy extraction is extensive with power being generated either by extracting potential or kinetic …
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Physical suitability of sites for community-scale tidal power generation
Tidal stream energy offers a renewable energy resource in response to global climate change. Most work has focused on the development of large-scale arrays. However, community-scale projects present a more economically viable option with greater flexibility for grid connection and reduced …
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SENSITIVITY ANALYSIS OF WATER LEVELS AND WAVES IN THE CARMEL RIVER STATE BEACH TO CHANGING BOUNDARY AND MORPHOLOGICAL CONDITIONS IN DELFT3D: CARMEL RIVER LAGOON
… low river discharge, the offshore wave and tidal energy had a larger impact on the lagoon water level and conversely, when river discharge is maximized, despite the wave height, river discharge dominates the processes affecting water level in the lagoon. Both increased discharge and …
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Study on mechanical properties of cork composites in a sandwich panel for wind turbine blade material
Wind energy has become one of the most promising energy sources due to its environmentally friendliness, unlimited amounts. To become competitive energy source among other sustainable and clean energy, such as solar cell, tidal energy, the price to produce the wind energy should drop and stable …
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Numerical Simulation of Cold Front-Related Hydrodynamics of Wax Lake Delta
… total waters by seven cold front events. (4). Subtidal energy accounts for over 45% of total energy while tidal energy contributes to less than 25%. (5) Cold front-induced wind is the most important factor and dominates the hydrodynamic circulations of the Wax Lake delta in winter.
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Investigation of the interface shearing resistance of steel and concrete on different rocks for renewable energy gravity foundation applications
Tidal stream energy is a form of marine energy with significant advantages compared to other types of offshore renewables, albeit the levelised cost of energy is relatively high. Various types of foundations have been considered for prototype tidal stream generators, however the utilisation of …
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