scholarly journals Development of Floating Type Ocean Current Turbine and Its Sea Trial - New Technology of Marine Renewable Energy Using Kuroshio Current

2019 ◽  
Vol 54 (2) ◽  
pp. 283-286
Author(s):  
Shigeki Nagaya
Keyword(s):  
Renewable Energy ◽  
New Technology ◽  
Kuroshio Current ◽  
Ocean Current ◽  
Sea Trial ◽  
Marine Renewable Energy ◽  
Floating Type ◽  
Current Turbine

SS Marine Renewable Energy – Ocean Current Turbine Mooring Considerations

2015 ◽  
Author(s):  
J.H. VanZwieten ◽  
W.E. Baxley ◽  
G.M. Alsenas ◽  
I. Meyer ◽  
M. Muglia ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Ocean Current ◽  
Marine Renewable Energy ◽  
Current Turbine

Development and Demonstration Test for Floating Type Ocean Current Turbine System Conducted in Kuroshio Current

2018 ◽  
Author(s):  
Tomohiro Ueno ◽  
Shigeki Nagaya ◽  
Masayuki Shimizu ◽  
Hiroyuki Saito ◽  
Show Murata ◽  
...  
Keyword(s):  
Kuroshio Current ◽  
Ocean Current ◽  
Floating Type ◽  
Current Turbine

Risk-Based Approach for the Development of Guidelines and Standards on Combined Marine Renewable Energy Platforms

2014 ◽  
Author(s):  
Laura-Mae Macadré ◽  
Keith O’Sullivan ◽  
Antoine Breuillard ◽  
Stéphane le Diraison
Keyword(s):  
Risk Assessment ◽  
Renewable Energy ◽  
New Technology ◽  
Development Stage ◽  
Offshore Wind ◽  
Global Risk ◽  
Marine Renewable Energy ◽  
Grid Connection ◽  
Reducing Costs ◽  
Guidelines And Standards

The combination of Marine Renewable Energy (MRE) technologies such as wave or current devices with offshore wind, a more mature technology, could enable pooling of R&D efforts and reducing costs (grid connection, moorings, maintenance activities…). Moreover, the different characteristics of the wind, wave and current resources could be complementary and provide a smoothing effect on the power production. Therefore, the EU FP7 project -MARINA Platform- aims at studying concepts of combined platforms integrating different types of MRE devices. Many challenges are induced by these innovative platforms and guidelines and standards will be required to ensure safety, reliability and quality. However, as the concepts are only at the development stage, no standards have been written for these combined platforms so far. This paper presents a new approach proposed by Bureau Veritas within the scope of the MARINA project for the development of guidelines and standards dedicated to combined MRE platforms. Existing literature on standards about MRE and related sectors, like shipping, wind energy and offshore oil & gas, forms a good basis to be exploited. In addition, risk assessment and qualification of new technology might be considered as a complement to standards to support the design of novel offshore concepts. Therefore, the presented methodology combines the use of existing standards from MRE and related sectors with a risk-based approach for the most innovative and unknown parts of the platform. A global risk assessment is performed in parallel for a whole review of the system.

scholarly journals Dynamic Stability of an Ocean Current Turbine System

2020 ◽  
Vol 8 (9) ◽  
pp. 687
Author(s):  
Shueei-Muh Lin ◽  
Yang-Yih Chen ◽  
Hung-Chu Hsu ◽  
Meng-Syue Li
Keyword(s):  
Dynamic Stability ◽  
General System ◽  
Kuroshio Current ◽  
Ocean Current ◽  
Two Dimensional ◽  
Sea Floor ◽  
The Stability ◽  
The Kuroshio ◽  
Current Turbine ◽  
Movable Structure

This paper presents a theoretical solution for the dynamic stability of the ocean current turbine system developed in Taiwan. This system is tethered to the sea floor and uses the Kuroshio Current to produce electricity. To maintain the performance of the turbine system in the presence of the Kuroshio Current, the stability of the surfaced turbine needs to be considered. The proposed system is composed of a turbine, a buoyance platform, a traction rope, and a mooring foundation. The two-dimensional theoretical solutions treat the turbine as a rigid body with a movable structure that is moored with two cables. In this model, the gravity, buoyancy, and drag force generated by the wave on the turbine structure are considered. In addition, an analytical solution is proposed for the general system. Finally, the effects of the wave on the pitch motion and dynamical stability of the ocean current turbine system are investigated.

Offshore Reliability Approach for Floating Renewable Energy Devices

2011 ◽  
Author(s):  
Lars Johanning ◽  
Philipp R. Thies ◽  
David Parish ◽  
George H. Smith
Keyword(s):  
Renewable Energy ◽  
Reliability Assessment ◽  
Test Rig ◽  
Sea Trial ◽  
Energy Devices ◽  
Marine Renewable Energy ◽  
Response Data ◽  
Research Institution ◽  
Research Activities ◽  
Component Test

This paper describes the test facilities developed within the Peninsular Research institution for Marine Renewable Energy (PRIMaRE) group and discusses the approach of the group to mitigate risk for marine renewable energy installations. The main consideration is given to the reliability assessment of components within mooring configurations and towards power umbilical for typical renewable energy sites. Load and response data from sea trial will be used to highlight the importance of these research activities, and a Dynamic Marine Component Test rig (DMaC) is introduced that allows four degree of freedom fatigue or destructive tests. Furthermore it is discussed how this facilities could also aid in the reliability assessment of wider offshore applications.

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