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- Book Chapter:
Lynn
This chapter presents a case study on tidal energy converters. It describes a number of devices at the forefront of development, many of which are being, or have been, tested at the European Marine Energy Centre (EMEC) in Orkney. The authors also raise a variety of practical issues that greatly affect device developers as they build, deploy and test devices which, in many cases, approach or…
- Book Chapter: Lynn
- Book Chapter:
Lynn
This chapter talks about marine energy capturing. It introduces the physics of ocean waves and tidal streams as a prelude to explaining the principles underlying some of today's most promising developments. Wave measurement buoys are used by marine energy organisations to provide the continuous, long‐term, data required by wave energy developers as they deploy their machines offshore. Wave…
- Journal Article:
Murray et al.
The National Renewable Energy Laboratory manufactured, instrumented, and deployed thermoplastic composite blades and a data acquisition system (NDAQ) on one of Verdant Power’s Gen5d 5 m diameter tidal turbines in New York’s East River. The thermoplastic blades had internal strain gages, and the NDAQ was a stand-alone system for monitoring and recording the strain…
- Report:
Igiugig Village Council
The Igiugig Village Council (IVC) installed and operates a marine energy device, the ORPC RivGen® Power System, in the Kvichak River in Igiugig, Alaska. As required by IVC’s 2019 FERC license to operate the power system, a Fish Monitoring Plan was developed and implemented for collecting images from underwater cameras to assess the interaction of sockeye salmon with the RivGen Power System.…
- Journal Article:
Lettenmaier et al.
This paper describes ocean testing of the half-scale Wave Energy Technology-New Zealand (WET-NZ) prototype wave energy converter (WEC) using the Ocean Sentinel instrumentation buoy during a 6-week deployment period in August‐October 2012. These tests were conducted by the Northwest National Marine Renewable Energy Center (NNMREC) at its Pacific Ocean test site off the coast of Newport, Oregon…
- Journal Article:
Rowell et al.
For marine hydrokinetic energy to become viable, it is essential to develop energy conversion devices that are able to extract energy with high efficiency from a wide range of flow conditions and to field test them in an environment similar to the one they are designed to eventually operate in. FloDesign Inc. developed and built a mixer-ejector hydrokinetic turbine (MEHT) that encloses the…
- Conference Paper:
Jiang et al.
Tidal energy, a clean, predictable and reliable renewable energy source, can play an important role in creating a carbon-free energy system in Europe. The cumulative tidal stream technology deployed in Europe was 27.9 MW in 2020, which contributes to 77% of the global total tidal energy device installations. Under a high growth scenario, about 2388 MW of tidal energy capacities will be…
- Report:
Quoceant Ltd
The Pelamis P2 hydraulic PTO system comprised three main parts: primary transmission, secondary transmission, and the energy storage that lay between them. This report details the assumptions, costs and some of the various options for the three system parts. The majority of the costs used in the analysis are the actual costs for the P2-002 machine procured in 2010, however some…
- Report:
European Marine Energy Centre (EMEC)
This document is part of a set of 5 reports Wave Energy Scotland (WES) has commissioned from the European Marine Energy Centre (EMEC), through engagement with supply chain companies, to create a set of Wave Energy Converter (WEC) development guidance documents which draw upon the lessons learnt from real sea deployments of marine renewables at the Orkney-based test site.
Four guidance…
- Presentation:
Bassett
In spring 2022 R/V Russell Davis Light was moored in Agate Pass, Washington, to perform the first saltwater test of a university-developed tidal turbine designed for sustained deployment as a bottom lander to power oceanographic sensors. The system, as deployed, was self-contained in that all system components associated with a hypothetical bottom-lander configuration were present. Potential…
- Presentation:
Schurtenberger
This presentation will contain much new information not presented previously about testing of hydrokinetic turbines of up to 3 m diameter with a new purpose-built test vessel. This test vessel is powered by solar and wind energy with electric motors (i.e. a “green” vessel) and has zero carbon footprint. We will also elaborate on the design and construction method of this vessel and the funding…
- Presentation:
Bosma et al.
As part of the development process, scaled testing of wave energy converter devices are necessary to prove a concept, study hydrodynamics, and validate control system approaches. Creating a low-cost, small, lightweight data acquisition system is often a barrier for wave energy converter developers’ ability to test such devices. This paper outlines an open-source solution to these issues, which…
- Report:
European Marine Energy Centre (EMEC)
This document is part of a set of 5 reports Wave Energy Scotland (WES) has commissioned from the European Marine Energy Centre (EMEC), through engagement with supply chain companies, to create a set of Wave Energy Converter (WEC) development guidance documents which draw upon the lessons learnt from real sea deployments of marine renewables at the Orkney-based test site.
Four guidance…
- Presentation:
Bharath et al.
Open water testing of marine renewable energy devices represents a significant milestone and hurdle for research teams and companies developing new technologies. For open water testing of tidal turbines, accurate measurements of loading characteristics on the blades or other structural components correlated with power performance metrics can be invaluable to further refine design principles…
- Journal Article:
Chen et al.
In this paper theoretical analysis of an ocean thermal energy conversion (OTEC) system was conducted using the Rankine cycle based on the first law of thermodynamics and a mathematical model of components of the system was established. Efficiencies of six types of working fluids were evaluated and compared under the uniform conditions. Finally a 15 kW OTEC plant using the Rankine cycle was…
- Journal Article:
Wu et al.
Constructal design of an evaporator in ocean thermal energy conversion system (OTECS) is carried out by taking the minimum dimensionless pumping power (DPP) as optimization objective. The effective volume and heat transfer rate (HTR) of the evaporator are taken as constraints in the constructal optimization. The optimal heat transfer plate (HTP) width of the evaporator is obtained. The effects…
- Conference Paper: Huchet et al.
Wake characterization of tidal turbines in the Pentland Firth using vessel-mounted ADCP measurements
Knowledge of the extension and velocity deficit induced by tidal turbine wakes is crucial for the optimization of tidal farm layouts, as the wake induced by an upstream turbine may substantially affect the power and loadings of a device located downstream. The MeyGen project is the largest planned tidal stream energy project in the world: it aims to develop up to 398 MW of installed power in…
- Journal Article:
Blondel et al.
Marine Renewable Energy is developing fast, with hundreds of prototypes and operational devices worldwide. Two main challenges are assessing their environmental impacts(especially in near-shore, shallow environments) and ensuring efficient and effective maintenance (requiring specialised ships and fair weather windows), compounded by the lack of long-term measurements of full-scale devices. We…
- Report:
IHI Corporation
Ocean currents, such as the Kuroshio Current, are expected to be effectively used as marine renewable energy in order to supply sustainable energy and reduce greenhouse gas emissions. IHI is aiming to realize power generation using an ocean current and is working toward development of a floating type ocean current turbine system.
Japan’s Exclusive Economic Zone (EEZ) extending outside…
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