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- Conference Paper:
Tosdevin et al.
… Much attention has been paid in recent years to the determination of design loads for moored floating structures and the application of established methodologies for fixed structures have been found to be ineffective. This paper experimentally investigates extreme responses of a lazy S moored 1:20 scale model of Mocean Energy’s Blue Star wave energy convertor (WEC) …
- Conference Paper:
Andres et al.
… Due to the emergent status of ocean energy technologies, the study of how to reduce the cost of energy to a level competitive with other renewable energy alternatives is an important aspect …
- Conference Paper:
Dorward et al.
… with potential to make a significant contribution to our future energy needs. Development of the industry, from resource assessment to device design and operation, requires characterisation of the flow environment at a variety of spatial and temporal scales at tidal energy sites. Demand for flow characterisation arises …
- Conference Paper:
Dooher et al.
… A great deal of energy can potentially be generated using underwater tidal current turbines. These operate in … is roughly 800 times denser than air can harvest more energy. Moreover, one major advantage of tidal current energy over other forms of renewable energy is that underwater currents and tides are predictable and the energy …
- Conference Paper:
Reynolds et al.
… A novel control strategy is proposed for the control of two fixed pitch tidal turbines subjected to discrete flow speeds whilst interconnected in an … Expenditure (OPEX) due to offshore equipment failure. An added benefit is utilisation of a single shared export cable for both turbines, thereby reducing Capital Expenditure (CAPEX). By lowering the cost of installing and maintaining an array it is anticipated that the commercial viability of the …
- Conference Paper:
Venugopal and Smith
… This paper presents the results of a study carried out to determine the change in wave climate around an array of hypothetical wave devices. The main objective of this work is to investigate the change in wave height in the upstream and downstream of the …
- Conference Paper:
Smith et al.
… The assessment of energy production from a wave energy converter commonly uses a stochastic approach. For … If a suitable frequency-dependent transfer function for the device is defined, an estimate of the total energy output for that specific sea state can be made. However, using a spectral averaging of the sea state in this way fails to account for short-term events that may significantly alter …
- Conference Paper:
Stegman et al.
… This paper proposes a method that could be of use to developers when considering designs improvements, or to investors considering a range of opportunities. The methodology shows how improvements to designs can be developed using systematic problem solving tools and the Theory of Inventive Thinking (TRIZ). The methodology is demonstrated in this study, using high level …
- Conference Paper:
Bivol et al.
… PLAT-O #2 is a subsea floating tidal energy generator. A scaled-down physical model of this device was tested at FloWave in steady axial currents of up to 6.2 m/s (full-scale). The platform’s motion and mooring tensions were measured to … squat in an arc motion about the upstream lines to a stable lower depth, to balance the forces of drag, thrust, net buoyancy and lift. Hydrodynamic characteristics of the platform are derived …
- Conference Paper:
Mullings et al.
… Accurate assessment of the fatigue life of tidal stream turbines and components requires prediction of the unsteady loading of turbine components over a wide range of frequencies. This study …
- Conference Paper:
Ewing et al.
… no published reliability data for Tidal Stream Turbines (TST’s). Thus, reliability assessments of failure critical components are highly uncertain. To reduce the Levelised cost of energy (LCoE) of TST technology it is critical to be able to perform accurate reliability assessments of …
- Conference Paper:
Stallard et al.
… Although many marine energy technologies are presently being developed, only a small number of devices have generated electricity from the marine environment. From such a small experience base it is difficult to independently assess the economic feasibility of alternative technologies for large-scale electricity generation. With a few notable exceptions, much of the published work on marine energy costing concerns relatively small deployments (up to …
- Conference Paper:
Mueller et al.
… are developed. Devices have common aspects such as moorings or seabed fixings, but the method of electrical power conversion can differ depending upon the device. Reliability analysis is …
- Conference Paper:
Caio et al.
… deployment, learning, and intermediate returns. Mocean Energy’s embodiment of this approach is an off-grid 10kW rated wave energy converter (WEC), Blue Star. … from an early geometry iteration are presented. Tests were carried out at the University of Edinburgh Curved Tank facility and centred on validating the WEC’s predicted …
- Conference Paper:
Stegman et al.
… for marine energy are to reduce carbon emissions, and improve security and sustainability of supply. There are other technologies that also meet these requirements, and therefore the … and infrastructure. This will be used to identify scenarios where wave energy forms part of the least-cost energy system for the UK by 2050, and will assess what LCOE reductions are …
- Conference Paper:
Lucas et al.
… A modified version of the Edinburgh duck wave energy converter has been studied recently at the University of Edinburgh. …
- Conference Paper:
Zhang et al.
… yaw angles for a tidal turbine is not only important to account for the performance of a single turbine, but can also be significant for the interactions between the turbines within … based on the Thetis coastal ocean modelling framework. The PDE constraint takes the form here of the two-dimensional, depth-averaged shallow water equations which are used to simulate tidal elevations and currents in the presence of tidal stream turbine arrays. The Sequential Least Squares Programming (SLSQP) algorithm is …
- Conference Paper:
Ingram et al.
… to additional, associated, expense. Overdesign is commonly driven by a limited understanding of the conditions at the deployment site. The RealTide project aims to tackle this conservative design by producing an open-access database of field and experimental data, providing a fuller understanding of the spatial and temporal variation of these conditions and the interaction of real-world …
- 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 …
- 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 …
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