scholarly journals New Tools for Easing System Integration, Deployment, Monitoring and Maintenance of Ocean Energy Devices

2010 ◽  
Vol 1 (08) ◽  
pp. 287-292
Author(s):  
Edin Omerdic ◽  
Daniel Toal ◽  
P. Finn
Keyword(s):  
System Integration ◽  
Ocean Energy ◽  
Energy Devices

Coordinators Overview and Lessons Learned From the Galway Bay Seatrials of the FP7 EU Funded CORES Wave Energy Project

2013 ◽  
Author(s):  
Raymond Alcorn ◽  
Anthony Lewis ◽  
Mark Healy
Keyword(s):  
Renewable Energy ◽  
Wave Energy ◽  
Energy Systems ◽  
Project Manager ◽  
Lessons Learned ◽  
Ocean Energy ◽  
Renewable Energy Systems ◽  
Energy Devices ◽  
Ocean Renewable Energy ◽  
The Coordinator

The paper discusses the lessons learned from the European Funded Framework 7 Research project Components for Ocean Renewable Energy Systems (CORES) which developed and trialed new components and systems for ocean energy devices. The authors are the coordinator and project manager so the paper will give this overview of the project. This will include detail of the work packages, major achievements, significant impacts, summary results and outcomes of the sea trials.

scholarly journals A Review of SPH Techniques for Hydrodynamic Simulations of Ocean Energy Devices

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 502
Author(s):  
Hong-Guan Lyu ◽  
Peng-Nan Sun ◽  
Xiao-Ting Huang ◽  
Shi-Yun Zhong ◽  
Yu-Xiang Peng ◽  
...  
Keyword(s):  
Computational Efficiency ◽  
Future Prospects ◽  
Ocean Energy ◽  
Sph Method ◽  
Hydrodynamic Simulations ◽  
Detailed Review ◽  
Energy Devices ◽  
The Future

This article is dedicated to providing a detailed review concerning the SPH-based hydrodynamic simulations for ocean energy devices (OEDs). Attention is particularly focused on three topics that are tightly related to the concerning field, covering (1) SPH-based numerical fluid tanks, (2) multi-physics SPH techniques towards simulating OEDs, and finally (3) computational efficiency and capacity. In addition, the striking challenges of the SPH method with respect to simulating OEDs are elaborated, and the future prospects of the SPH method for the concerning topics are also provided.

Comparison of Mooring Solutions and Array Systems for Point Absorbing Wave Energy Devices

2018 ◽  
Author(s):  
Jonas W. Ringsberg ◽  
Hanna Jansson ◽  
Shun-Han Yang ◽  
Martin Örgård ◽  
Erland Johnson
Keyword(s):  
Systems Engineering ◽  
Wave Energy ◽  
Ocean Energy ◽  
Mooring Lines ◽  
Energy Capture ◽  
Energy Devices ◽  
Structure Response ◽  
Energy Technologies ◽  
Cost Of Energy ◽  
Reference Installation

Most of the ocean energy technologies are considered to be in a pre-commercial phase and need technical development. This study focuses on design of mooring solutions and compares array systems of a specific floating point-absorbing wave energy converter (WEC) developed by the company Waves4Power. A full-scale prototype of the WEC is installed in Runde (Norway) where it is moored with three polyester mooring lines, each having one floater and one gravity anchor. Based on this reference installation, the method of systems engineering was used to propose twenty-two conceptual mooring solutions for different array systems. They were compared and reduced to four top concepts in a systematic elimination procedure using Pugh and Kesselring matrices. The top concepts were assessed in detail by means of LCOE (levelised cost of energy), LCA (life cycle analysis) and risk analyses. The fatigue life of the mooring lines and the energy capture were calculated using results obtained from coupled hydrodynamic and structure response analyses in the DNV-GL DeepC software. Two final concepts were proposed for the water depths 75 and 200 m.

scholarly journals Grid Integration of Wave and Tidal Energy

2011 ◽  
Author(s):  
Anne Blavette ◽  
Dara L. O’Sullivan ◽  
Antony W. Lewis ◽  
Michael G. Egan
Keyword(s):  
Wind Energy ◽  
Dynamic Models ◽  
Dynamic Modelling ◽  
Tidal Energy ◽  
Energy Industry ◽  
Grid Integration ◽  
Ocean Energy ◽  
Major Barrier ◽  
Energy Devices ◽  
Grid Connection

Wave and tidal energy provide a renewable source of electricity. However, their inherent fluctuations may have a negative impact on the power quality of a local electrical network. Grid operators assess this impact through the use of dynamic models of the generation units, which are inserted into the overall power system model. Providing these models is a compulsory step for any power generator to procure a grid connection above a specified power capacity. Significant issues were encountered in the wind energy industry regarding the dynamic modelling of devices, among which were model numerical instability, poor dynamic model quality and model incompatibility. Considering the large diversity of device types in the emerging ocean energy industry, these problems are considered as a major barrier to the larger scale grid-integration of marine energy converters. Dynamic models must clearly demonstrate the compliance of the actual power generation device and array of devices to the grid code requirements for grid-connection to be allowed. A further barrier to grid connection of ocean energy devices is that existing grid codes — mainly written in the context of wind energy — may be irrelevant or inadequate for ocean energy devices. This paper presents an overview of these issues, and details a radically different approach to the dynamic modelling of ocean energy devices that will assist in overcoming the issues previously encountered in the development of wind turbine models. It also highlights the gaps and inadequacy regarding grid code requirements for ocean energy devices, and provides some recommendations for a new ocean energy grid code.

Design of Mooring Solutions and Array Systems for Point Absorbing Wave Energy Devices—Methodology and Application

2019 ◽  
Vol 142 (3) ◽  
Author(s):  
Jonas W. Ringsberg ◽  
Hanna Jansson ◽  
Martin Örgård ◽  
Shun-Han Yang ◽  
Erland Johnson
Keyword(s):  
Systems Engineering ◽  
Wave Energy ◽  
Ocean Energy ◽  
Mooring Lines ◽  
Energy Capture ◽  
Energy Devices ◽  
Structure Response ◽  
Energy Technologies ◽  
Cost Of Energy ◽  
Reference Installation

Abstract Most of the ocean energy technologies are considered to be in a pre-commercial phase and need technical development. This study focuses on the design of mooring solutions and compares array systems of a specific floating point-absorbing wave energy converter (WEC) developed by the company Waves4Power. A full-scale prototype of the WEC is installed in Runde (Norway) where it is moored with three polyester mooring lines, each having one floater and one gravity anchor. Based on this reference installation, the method of systems engineering was used to propose 22 conceptual mooring solutions for different array systems. They were compared and reduced to four top concepts in a systematic elimination procedure using Pugh and Kesselring matrices. The top concepts were assessed in detail by means of levelized cost of energy (LCOE), life cycle analysis (LCA), and risk analyses. The fatigue life of the mooring lines and the energy capture were calculated using results obtained from coupled hydrodynamic and structure response analyses in the dnv-gl deepc software. Two final concepts were proposed for the water depths 75 and 200 m.

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