This site-wide search returns results for all documents and events in Tethys Engineering, prioritizing the best matches. Partial word matches are returned (e.g. "engineer" finds "engineering"), but every entered term must be found. If you don't find any results, try reducing the number of words entered or removing special characters. Filters to the right can help narrow your search. Tethys Engineering features an integrated search with other marine renewable energy databases in PRIMRE - click the buttons below "Showing Results for" to search other integrated databases.
Showing Results for
- Conference Paper:
Keysan et al.
… C-GEN is a new topology of direct-drive permanent magnet generator being developed at University of Edinburgh. The main benefits are reduced overall system mass and ease of manufacturing, due to …
- Journal Article:
Dillenburger-Keenan et al.
… the tidal industry for conducting power performance assessments. This paper explores the use of a horizontally mounted Nortek Signature 500 Acoustic Doppler Current Profiler (ADCP) as a … measurement onboard a utility-scale tidal turbine. This study shows that the measurement range of an ADCP mounted horizontally in highly dynamic tidal flow (up to 4 m/s) is less than the … velocities that differ from a single horizontal beam recording. The maximum measurement range of the instrument is found to depend on current speed and on the proportion of data loss that is …
- Journal Article: Angeloudis et al.
On the potential of linked-basin tidal power plants: An operational and coastal modelling assessment
… Single-basin tidal range power plants have the advantage of predictable energy outputs, but feature non-generation periods in every tidal cycle. … relative to single-basin designs. In addressing this, we outline the basic principles of linked-basin power plant operation and report results from their numerical simulation. Tidal … demonstrate that linked-basin systems can reduce non-generation periods at the expense of the extractable energy output relative to conventional tidal lagoons and barrages. As an … - Conference Paper:
Greenwood et al.
… This paper presents the results of a numerical wave modelling study carried out to assess the near shore wave energy resource … are obtained from a Datawell directional wave buoy located approximately 16 km off the coast of Lewis in 60 metre depth. Additional data collected from a submerged Acoustic Wave and Current profiler (AWAC) located at 13 metre depth offshore at one of the wave energy development sites was used to calibrate and validate the wave model for …
- Conference Paper:
Jaksic et al.
… high cost and reliability during its life expectancy. The blades make up a significant part of total tidal turbine cost. Hence, the capital cost reduction and the structural reliability of blades are the key factors in a tidal turbine development. This study examines the possibility of replacing Glass Fibre Reinforced Composites (GFRP) with Carbon Fibre Reinforced Composites …
- Journal Article:
Harcourt et al.
… to deliver predictable energy to the electricity grid, subject to the known variability of the tides. Tidal power plants inherently feature advantages that characterise hydro-power more … relative to other renewable options is the partial flexibility it possesses over the timing of power generation. In this study we provide details on a design methodology targeted at the optimisation of the temporal operation of a tidal range energy structure, specifically the Swansea Bay tidal …
- Journal Article:
Hiles et al.
… Critical to evaluating the economic viability of a wave energy project is: (1) a robust estimate of the electricity production throughout the project lifetime and (2) an understanding of the uncertainty associated with said estimate. Standardization efforts have established mean …
- Conference Paper:
Viola et al.
… could be achieved through blades that passively and elastically adapt their camber and angle of attack to counteract unsteady flow conditions. Firstly, we discuss the underlying principles of unsteady thrust mitigation. We show that complete cancellation of the thrust fluctuations would be possible if every blade section could pitch passively and …
- Conference Paper:
Draycott et al.
… —Wave buoys are used extensively for the characterisation of deployment locations for offshore technologies, where they are subjected to currents in … that the measurements from wave buoys are affected by these currents, but the majority of deployed buoys cannot measure, or account for, this effect. Presented here are a series of experiments conducted at the FloWave Ocean Energy Research Facility, deploying a spherical …
- Journal Article:
Pillai et al.
… Despite this, currents are often ignored and wave buoy data is processed without consideration of the current or the wave-current interaction. This data is subsequently used in design, yet sea … may have significant errors. Here we present a novel framework for the processing of wave buoy data to account for the effect of a current. We use a mesh adaptive direct search (MADS) algorithm to solve for the current and …
- Journal Article:
Mejia-Olivares et al.
… interest in harnessing renewable energy resources in Latin America. Converting the energy of the tides into electricity has the distinct advantage of being predictable, yet the tidal range resource of Latin America is largely unquantified. The northern part of the Gulf of California (GC) in …
- Conference Paper:
McDowell et al.
… Understanding and incorporating these MetOcean site characteristics into the initial stages of a feasibility study, will increase the accuracy of economic viability predictions. A more comprehensive approach will assist in building investor … previously overlooked or unknown lifetime costs can be estimated and included in the choice of ultimate deployment location. Freely available astronomic, bathymetric and meteorological data …
- Journal Article:
Sutherland et al.
… scale tidal energy devices are shortly to be deployed in the first arrays, the knowledge of how different array layouts perform is a key and under-examined field. Here, the Momentum Reversal Lift (MRL) turbine, developed by the University of Exeter, is deployed in five different array layouts utilising up to 15 devices. The use of …
- Journal Article: Payne et al.
Variation of loads on a three-bladed horizontal axis tidal turbine with frequency and blade position
… Sustainable and cost effective design for tidal current turbines requires knowledge of the complex nature of unsteady loads on turbine components including blades, rotor and support structure. This study … All the experimental measurements presented in this article can be accessed from http://dx.doi.org/10.7488/ds/2423. … 10.1016/j.jfluidstructs.2018.08.010 … - Journal Article:
Rahim et al.
… as coal, oil, and gas. However, the alarming increase in CO 2 emissions and the depletion of fossil fuel reserves have given rise to imminent challenges in meeting the strong demand for electricity in Malaysia. Thus, this paper explores various types of tidal stream devices that have been experimentally developed for electricity generation and … with a specific focus on potential devices to be implemented in the shallow water environment of Malaysia. These devices are chosen based on the average Malaysian tidal stream velocity, which …
- Conference Paper:
Clark et al.
… loads (DELs) for a PTO given three hull shapes (a cylinder, a sphere, and a barge), two sets of metocean conditions (from the center of the North Sea and off the west coast of Norway), and two float motions (heave and surge). Results indicate that hull geometry has a …
- Journal Article:
Edwards et al.
… Interest in wave energy as a viable renewable energy has increased greatly in the past couple of decades. To determine the potential that a certain location has to harvest wave energy, a … for deployment as well as the design and operating sea states. This study shows the level of sophistication that must be included in the verification process within a wave resource … methodology in two articles. Part 1 described a procedure for a complete statistical analysis of the fit of the model. This paper will demonstrate how investigating systematic trends in the …
- Journal Article:
Venugopal et al.
… This study reports the practicalities of applying a numerical model to assess the wave energy extraction at proposed development sites in Orkney Waters, Scotland. A state-of-the-art phase averaged spectral wave model, MIKE 21 Spectral Wave, in association with the wave-structure interaction software tool WAMIT, has been employed to study the impact of energy extraction by large arrays of Wave Energy Converters (WECs) on the wave height …
- Conference Paper:
Vogler and Venugopal
… The Outer Hebrides of Scotland were identified as an area with a high wave power resource of 42.4kW/m. The Outer Hebrides of Scotland are currently targeted by a range of developers for demonstration and commercial …
- Journal Article:
Garcia-Teruel et al.
… It is key in the development of wave energy systems to aim at designing economically competitive solutions that enable maximal … studies identify the Wave Energy Converter (WEC) structure, i.e. the hull, to have one of the largest cost reduction potentials. Due to this potential, geometry optimisation of WECs has been previously considered, however, most of these studies have been limited by the …
Displaying 181 - 200 of 321