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Mathew B. R. Topper

Mathew B. R. Topper
Data Only Greater

PhD

About

21
Publications
11,773
Reads
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87
Citations
Additional affiliations
January 2018 - present
Data Only Greater
Position
  • Consultant
March 2017 - August 2017
The University of Edinburgh
Position
  • Researcher
September 2014 - December 2016
Tecnalia
Position
  • Fellow
Education
September 2004 - September 2010
The University of Edinburgh
Field of study
  • Marine Renewable Energy
September 1999 - June 2003
University of Southampton
Field of study
  • Mathematics

Publications

Publications (21)
Conference Paper
A clear relationship exists between component reliability, the need for maintenance operations, and the resulting levelised cost of energy (LCOE) of offshore renewable energy arrays. To model this relationship, complex combinations of low-level components can be captured to provide the reliability of higher-level subsystems. The open source, ocean...
Article
Full-text available
As the technology of hydrokinetic tidal energy conversion looks to exploit smaller markets in the wider ‘blue economy’, innovation is still required to ensure cost competitiveness with other energy sources. A typical assumption of existing techno-economic models of tidal energy converter (TEC) arrays is that TECs positioned to minimise negative hyd...
Article
Full-text available
Hydrokinetic tidal energy converter (TEC) technology is yet to become cost competitive with other renewable energy sources. Understanding the interaction between energy production and the costs incurred harvesting that energy may unlock the economic potential of this technology. Although hydrodynamic simulation of TEC arrays has matured over time,...
Article
Full-text available
Variability in the predicted cost of energy of an ocean energy converter array is more substantial than for other forms of energy generation, due to the combined stochastic action of weather conditions and failures. If the variability is great enough, then this may influence future financial decisions. This paper provides the unique contribution of...
Conference Paper
Full-text available
Verification and validation techniques can provide a strategic framework for improving the predic-tive capability of numerical models used in the marine renewable energy sector. In addition, it is proposed that the adoption of open source community models make implementing such strategies more straightforward. A technique of particular interest is...
Preprint
Full-text available
A clear relationship exists between component reliability, the need for maintenance operations, and the resulting levelised cost of energy (LCOE) of offshore renewable energy arrays. To model this relationship, complex combinations of low-level components can be captured to provide the reliability of higher-level subsystems. The open source, ocean...
Conference Paper
This paper focuses on the role of the Marine Renewable Energy (MRE) Software Knowledge Hub on the Portal and Repository for Information on Marine Renewable Energy (PRIMRE). The MRE Software Knowledge Hub provides online services for MRE software users and developers, and seeks to develop assessments and recommendations for improving MRE software in...
Preprint
Full-text available
This paper focuses on the role of the Marine Renewable Energy (MRE) Software Knowledge Hub on the Portal and Repository for Information on Marine Renewable Energy (PRIMRE). The MRE Software Knowledge Hub provides online services for MRE software users and developers, and seeks to develop assessments and recommendations for improving MRE software in...
Article
Full-text available
While some engineering fields have benefited from systematic design optimization studies, wave energy converters have yet to successfully incorporate such analyses into practical engineering workflows. The current iterative approach to wave energy converter design leads to sub-optimal solutions. This short paper presents an open-source MATLAB toolb...
Presentation
Full-text available
The WEC Design Optimization MATLAB Toolbox (WecOptTool; https://snl-waterpower.github.io/WecOptTool/) allows users to perform wave energy converter (WEC) device design optimization studies while including different control strategies. In particular, this tool’s key feature is the usage of a pseudo spectral solution method capable of dealing with bo...
Conference Paper
Full-text available
computation times for investigations of environmental effects and array optimization. These CEC models take the form of actuator discs in codes such as SNL-Delft3D-CEC-FM treating the rotating CEC blades as momentum sinks. In the first-of-its-kind, whole-plant optimization software, DTOcean array optimization is reduced one step further by superimp...
Article
Full-text available
This paper proposes an optimisation strategy for the layout design of wave energy converter (WEC) arrays. Optimal layouts are sought so as to maximise the absorbed power given a minimum q-factor, the minimum distance between WECs, and an area of deployment. To guarantee an efficient optimisation, a four-parameter layout description is proposed. Thr...
Conference Paper
As the technology readiness level of ocean energy devices moves from single units to small arrays, evidence from related industries suggests the need for integrated array design tools. Those tools implement all the functionality required for assessing the economic performance, technical reliability and environmental impact of the diverse subsystems...
Poster
Full-text available
DTOcean, which stands for Optimal Design Tools for Ocean Energy Arrays, is aimed at providing design tools for decision taking in order to reduce project costs/risks and to focus future innovation efforts (i.e. identification of enabling technologies), for deploying the first generation of wave and tidal energy converter arrays. The tool is being d...
Conference Paper
Any investigation of the interaction between marine renewables and their physical environment requires detailed information about the baseline wave resource. Hebridean Marine Energy Futures (HebMarine) have been conducting a high resolution spectral wave model of the Outer Hebrides of Scotland, site of several planned wave energy deployments. The s...
Technical Report
Full-text available
This report seeks to clarify the potentially misleading semantics used to describe the spectral density of ocean wave measurements. The spectral density can be named using either signal processing convention or using the application of the spectral density for ocean waves. It is proposed that the term “wave spectral density”, although more ambiguou...
Conference Paper
Full-text available
Boundary element methods are commonly used in the fields of aeronautics and hydrodynamics to calculate flows about bluff and lifting bodies. When lifting bodies are considered, a vortex sheet, emanating from the lifting body's trailing edge, must be included in the model in order to correctly account for the lift. Low order discretisations, particu...
Thesis
Kinetic energy extraction devices for ocean and river flows are often located in the vicinity of the fluid free surface. This differs from wind turbines where the atmosphere may be considered to extend to infinity for the purposes of numerical modelling. As most kinetic energy extraction devices are based on lifting surfaces, a numerical model is s...
Technical Report
Full-text available
Numerical modelling within the marine renewable energy community is in its infancy compared to more mature engineering disciplines such as aeronautics. Additionally, established software from other fields is often applied to marine energy challenges. These issues can manifest several difficulties such as conflicts in language and notation (semantic...
Conference Paper
Tidal Energy represents a substantial untapped European energy resource. It is a renewable energy source that is predictable and reliable as tides are generated through the gravitational coalescence of the Earth, Sun and Moon. The technology to capture tidal energy has shifted over time from large scale 'Tidal Barrages', that exploit the rise and f...

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Projects

Projects (2)
Project
DTOcean is a European collaborative project funded by the European Commission under the 7th Framework Programme for Research and Development, more specifically under the call ENERGY 2013-1. DTOcean that stands for Optimal Design Tools for Ocean Energy Arrays aims at at accelerating the industrial development of ocean energy power generation knowledge, and providing design tools for deploying the first generation of wave and tidal energy converter arrays. It gathers 18 partners from 11 countries (Ireland, Spain, United Kingdom, Germany, Portugal, France, Norway, Denmark, Sweden, Belgium and United States of America) under the coordination of the University of Edinburgh.