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
- Report:
Payne
… Experimental tank testing is a key aspect of wave energy conversion research. The performance of designs can be assessed in an accessible … document is based on tank testing practices that have been developed over the years at the University of Edinburgh. As such it is focused on the use of equipment that has been developed by the …
- Journal Article:
Bailey and Bryden
… energy converter. The power take-off uses the relative velocity between the main structure of the wave energy converter and an inertial referenced mass contained within its outer envelope. The power take-off consists of a linear spring and a quadratic damper. In this paper the mathematical principles behind a working time domain simulation of a non-linear power take-off as applied to a relative motion inertial referenced wave energy …
- Report:
Smith
… environment, marine ecosystems, acoustic propagation and marine mammal behaviour. The remit of the project included wave and tidal energy and, unusually for a project of this nature, offshore wind. Wind was included to enable contrasts between levels of industry maturity and scales of deployment, thus providing a wide range of potential case …
- Thesis:
Kreimair
… power assessment, uncertainties arise from model assumptions and the inexact specification of physical and numerical model parameters. Combined, such uncertainties can greatly affect power estimates for a given site. The thesis examines the effects of bed roughness and turbine drag uncertainties on turbine power estimates. An analytic model is developed for transfer of bed friction uncertainty to power extracted from turbines in a strait, representative of a …
- 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 …
- Journal Article:
Creech et al.
… Computational fluid dynamics is used to study the impact of the support structure of a tidal turbine on performance and the downstream wake characteristics. A high-fidelity computational model of a dual rotor, contra-rotating tidal turbine in a large channel domain is presented, with …
- Thesis:
Vezza
… be done in part by considering anti-biofouling solutions: the reduction, removal and recording of associated marine organisms which can impact numerous turbine operations, such as obstructing … heat exchange or increasing blade drag, and can provoke environmental concerns. The aim of this thesis is to develop a comprehensive, quick and cost effective anti-biofouling approach … and record biofouling for engineering purposes and in relation to the potential presence of alien invasive species. A three stage anti-biofouling strategy for non-scientific turbine …
- Thesis:
Lin
… energy convertors are designed to use either vertical (heave) or horizontal (surge) movements of waves. But the frequency response of small heaving buoys and oscillating water column devices shows that they are too stiff and so … that a device that moved at some intermediate slope angle could have an intermediate value of hydrodynamic stiffness and so be resonant at a variable and desirable part of the wave …
- Thesis:
Kenny
… to global energy security and sustainability. However, the high initial Levelised Cost Of Energy (LCOE) of MRE, as well as issues with survivability and reliability, present challenges for its … This is achieved by monitoring critical subsystems for the detection and prediction of faults and allowing for maintenance personnel to take mitigating action prior to subsystem or …
- Thesis:
Hudson
… decades, offshore renewable energy is expected to play a crucial role in the decarbonisation of global electricity supply essential for limiting anthropogenic greenhouse gas emissions to an acceptable level. The cost of utilising expensive vessels to install and maintain these marine energy devices represents a significant proportion of their life-cycle cost and one of the major barriers to their continued development. It is …
- Journal Article:
MacGillivray et al.
… develops as it matures. In this paper we model the technological trajectory for a number of energy technologies by analysing technological change (characterised by unit-level capacity … using sigmoidal 5 Parameter Logistic (5PL) functions, observed and reported as a function of unit deployment. Application of 5PL functions allows inference of technology development milestones, such as initiation of …
- Journal Article:
Child and Venugopal
… In this paper, the influence of the spatial configuration of a wave energy device array upon total power output is investigated. Hydrodynamic interactions are computed using a method capable of producing the linear wave theory solution to arbitrary accuracy. The overall performance of …
- Book Chapter:
Salter
… This paper describes the work of the Edinburgh group on their duck. It reviews the techniques used to improve device productivity by controlling both power take-off and mounting-movement. It outlines the results of a test programme on long compliant spines and discusses costing methodology. Some future …
- Thesis:
Child
… In this thesis, certain issues relating to a number of wave energy absorbers operating in the same vicinity are investigated. Specifically, arrangements of the devices within such an array are sought, such that beneficial hydrodynamic interference between members is exploited and unwanted effects mitigated. Arrays of ‘point absorber’ devices as well as converters with multiple closely spaced floats are …
- Journal Article:
MacGillivray et al.
… as an analytical tool for technology forecasting involves making assumptions over a range of key uncertainties, often implicitly. In this paper, we present an explicit treatment of the key uncertainties involved in learning rates' analyses of marine energy innovation (wave and tidal stream) — technology fields attracting considerable …
- Journal Article:
Jeffery et al.
… Energy system scenarios and modelling exercises may under-represent the learning potential of emerging technologies such as marine energy. The research described here was devised to represent this potential, and thereby explore the possible role of marine energy in future energy systems. The paper describes a scenario for the accelerated development of marine energy technology, and the incorporation of this scenario into wider scenarios of UK …
- Journal Article:
Mueller and Wallace
… This paper describes some of the key challenges to be met in the development of marine renewable energy technology, from its present prototype form to being a widely deployed contributor to future energy supply. Since 2000, a number of large-scale wave and tidal current prototypes have been demonstrated around the world, but …
- Journal Article:
de Andres et al.
… The purpose of this work is to provide an innovative tool based on the classic Levelised Cost of Energy (LCOE) which gives an overview of the limits for the technical parameters of Wave Energy Converters (WECs). In this case, the …
- Journal Article:
Friedrich and Lavidas
… generators and energy storage are becoming cost competitive. Diesel usually provides about 10% of the demand because most renewables are non-dispatchable and thus the complete decarbonisation … storage and renewable generation capacities. Here a framework for the design and optimisation of HES using wind, wave and solar generation and DSM is introduced. For the Mediterranean it is … has lower benefits because waves act as an energy store for the wind. Thus, the combination of wave energy converters (WECs) and wind turbines significantly reduces the need for backup …
- Thesis:
Reynolds
… A novel control strategy is proposed for the control of two fixed pitch tidal turbines subjected to discrete flow speeds whilst interconnected in an … (OPEX) incurred through 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 …
Displaying 1 - 20 of 317