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- Conference Paper:
Tan and Venugopal
… coexist, tidal flow can significantly alter wave parameters and hence affects the estimation of wave energy resources. This study uses a coupled wave-current numerical model to evaluate the influence of wave-current interactions on wave parameters. To achieve this, the simulation was performed in … evaluate the wave-current impact on wave parameters, a qualitative and quantitative analysis of these parameters is carried out, and the results are presented and discussed in the paper. The …
- Conference Paper:
Moretti et al.
… This paper introduces a novel concept of Oscillating Wave Surge Converter, named Poly-Surge, provided with a Dielectric Elastomer … that employ rubber-like polymers to conceive deformable membrane capacitors capable of directly converting mechanical energy into electricity. In particular, a Parallelogram Shaped DEG is considered. In the paper, a description of the Poly-Surge is outlined and engineering considerations about the operation and control of …
- Conference Paper:
van Lanschot et al.
… in resource rich deeper more distant waters. The development in these fields is often ahead of policy, regulation and infrastructure. Previous studies often utilise spatial analytics to … make assessments but often overlook grid requirements. In order to address this issue a series of spatial analytic and electrical power flow models have been established to form a novel … power flow dispatch model. It was found that sensitivity analysis was needed at each stage of the modelling process. However, it forms the basis of strategic development tool that could be …
- Conference Paper:
Garcia-Teruel et al.
… Wave Energy Converter structures are associated with the highest percentage share of LCOE costs, however, existing geometry optimization studies just consider maximization of power production and, in some cases, mass as a proxy for structural costs. How to include cost … discussed here. Two different methodologies - depending on the available information and goal of the study - are presented, and example cases for these are given. The results show the …
- Conference Paper:
Noble et al.
… scale model testing is an important development tool, used extensively to study the behaviour of marine devices, vessels and structures in a controlled environment prior to deployment at sea. … renewable energy devices has been published over the past decade, it has limitations in terms of advanced environmental conditions for testing. The body of existing guidance is reviewed, and initial suggestions offered for additional test conditions …
- Conference Paper:
Child and Venugopal
… In this paper we seek configurations of wave energy devices that help to achieve certain objectives, such as maximising power for a … employ an exact hydrodynamic interaction technique, which is used to assess the performance of the resulting arrays. The power enhancing effect of the arrangement ( ¯q-factor) is presented for regular incident waves with a range of …
- Conference Paper:
Robert et al.
… Tidal turbine arrays have considerable potential in providing a reliable source of renewable energy. Technology limitations are obstructing the fast development of the sector, however, one of which is the lack of knowledge of mechanical properties of submerged composites used to build …
- Conference Paper:
Stiven et al.
… This research examines the impact of accuracy in tidal current energy resource assessment on the likely economics of a tidal array project, ultimately estimating the impact of resource uncertainty on overall lifetime project economics. The analysis utilises field data …
- Conference Paper:
van Lanschot et al.
… The following paper examines how the marine zone of Europe is influenced by several key engineering and nonengineering restrictions for the case study of 3 offshore renewable technology types, an attenuating wave energy converter, a floating wind … jacket frame. It assesses the site characteristics associated with the devices and the levels of impact that can have on site suitability. The onshore infrastructure requirements for ports …
- Conference Paper:
Roberts et al.
… The high number of design options and prototyping activity within the wave energy sector indicates that it is in a conceptual stage of development. It therefore inappropriate to narrow the design focus and an effort should be … process, whereby the widest possible parameter space is evaluated based upon the requirements of wave energy extraction. In this preliminary study a model is used to calculate financial merit …
- Conference Paper:
Finlay et al.
… tidal resonance in the channel, a simple two dimensional model has been developed for a series of simulated estuaries, ranging from a simple box channel with a uniform flat bed to a simple wedge shaped channel with a solid barrier across, to a simulation of the Severn Estuary with topographic and bathymetric values. These modelsshow amplitudes and phases of elevation and current flow for each model scenario. model outputs show that overall tidal …
- Conference Paper:
Caraher et al.
… useful technology for wave power applications. Typically, optimisation and comparison of these generators is based on an electromagnetic analysis with limited regard for the structural analysis. This paper presents a comparison of two alternative designs of the double-sided linear permanent magnet synchronous machine which includes structural and …
- Conference Paper:
Maguire and Ingram
… For most of the twentieth century naval hydrodynamics, and more recently, wave energy hydrodynamics have been limited to the realms of theory and physical experiments. Both of these methods of fluid flow analysis are constrained through scope, cost and size of facility. …
- Conference Paper:
Mueller et al.
… The evolution of a novel permanent magnet (PM) generator topology is described in the paper. It has the … for direct drive applications in wind, wave and tidal current generators. The philosophy of the generator concept is based upon reducing the structural mass by eliminating large unwanted … available rotary PM generator for a 100kW turbine is presented to show the potential of the new topology … 10728 …
- Conference Paper:
Payne
… any graphical user interface. Instead, input settings are entered into the program by means of text files. Computation results are output in the same way. Preparation of the input files and post-processing of the outputs is often time consuming and repetitive. This paper presents a graphical user …
- Conference Paper:
Pascal and Bryden
… This paper presents a PhD project aimed to improve the reliability of production estimation of Wave Energy Converter from the performace description and the statistical description of a wave climate. So far, a review of the different spectral parameters has been done. The …
- Conference Paper:
Bailey and Bryden
… effect that a mono-directional Power Take Off (PTO) has on the motions and power extraction of a Wave Energy Converter (WEC). A mono-directional damper is one where the resisting force only operates in one direction. The model comprises of a cylinder that is restrained to move in heave, reacting against an internal mass (also … mono-directional damper in parallel. This paper presents experimental results for a variety of different damping constants for mono-directional dampers which operate in both in expansion …
- Conference Paper:
Jeffrey et al.
… This paper provides an overview of the UKERC technology roadmap and its proposed internationalization. It describes a route for … to technology development in the ocean energy sector, whilst taking into account the needs of other stakeholders. The successful implementation of the technology roadmap depends upon a number of complex interactions between commercial, …
- Conference Paper:
Gretton and Bruce
… Hydrofoil section data, comprising coefficients of lift and drag, are a key input into blade element momentum models of turbines. The aim of this paper is to investigate whether differences in this section data are to account for the …
- Conference Paper:
Ferguson et al.
… is intermittent, so energy storage technologies are necessary to ensure a secure supply of energy. One option is hydrogen, which has applicability for seasonal energy storage and as … grid electricity is not used, by reducing minimum plant capacities. This shows the importance of choosing favourable business models and plant operation strategies when developing proposals. …
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