Sea Technology

DEC 2018

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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www.sea-technology.com December 2018 | ST 43 from tidal resources—reducing barriers to entry for the tidal industry. NSRI Highlights Wave, Tidal Challenges and Opportunities The necessary steps to ensure the U.K. remains at the forefront of wave and tidal energy sectors have been out- lined in the National Subsea Research Initiative's (NSRI) Wave & Tidal Transformation report. The report highlights the opportunities and challenges for technology devel- opers and subsea supply chain companies looking to do business in these sectors and the requirements for indus- try-driven research. To date, more than £450 million has been spent across the U.K. wave and tidal supply chain, and the global in- dustry is forecast to be worth up to £76 billion by 2050. NSRI has identified the need for a dedicated task force, supported by industry and government, to drive forward technology development, knowledge sharing and stewardship for strategic direction and industry-wide promotion. Floating Wind Turbine Installation off Portugal Bourbon Subsea Services has been selected by Wind- plus to install three floating wind turbines of 8.3 MW, 20 km off Viana do Castelo, Portugal. The workscope includes project management, engineering and the pro- curement of the complete mooring system (supplied by Vryhof). The mooring systems with three sets of three mooring lines will be pre-laid in the first phase. The wind turbines will be then towed to the offshore site and hooked up in a second phase, which will include the installation and hook up of the inter-array electrical cables. BOURBON will provide a variety of assets for the different phases of the operations, including AHTS, tugs and ROVs. Optimizing Floating Offshore Renewable Energy Devices Being able to understand and predict the behavior of offshore floating structures under typical or extreme en- vironmental loads is central to being able to assess their viability. This is particularly important in the case of off- shore renewable energy where devices are intentionally placed in highly energetic marine sites. New research at HR Wallingford in collaboration with the Coastal and Hydraulics Laboratory (CHL) in the U.S. has developed a toolkit to optimize the design of floating offshore renewable energy devices by accurately simu- lating the response of these floating structures under re- alistic sea states. The research shows that by combining open-source numerical tools, there is potential to simulate with accu- racy the response of complex offshore floating structures to environmental loads in the marine environment. The toolkit comprises two main components: com- putational fluid dynamics (CFD) using Proteus open- source software and multi-body dynamics (MBD) using the Chrono open-source solver. Both models have been thoroughly validated separately and together. ST Highest capacity, reliability, safety Your power source for subsea, AUV, ROV A d d e d Va l u e Customizing and personal support Longest lifetime Simplest operation on board 2 Los Gatos OA-ICOS & LI-COR ® NDIR info@subctech.com www.gosubsea.com SubCtech GmbH www.subctech.com p CO 2 Analyzer OceanPack™ (FerryBox) Subsea Inspection Vehicle Batteries Battery Systems

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