nrc institute for ocean technology part of the ocean ...€¦ · nrc institute for ocean technology...
TRANSCRIPT
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NRC Institute for Ocean TechnologyPart of the Ocean Energy Development
Supply Chain
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Where is IOT?
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Institute for Ocean Technology St. John’s, NL
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Hydrodynamic Modeling
Theoretical / Numerical Modeling
Physical / Scale Modeling
Field Trials ( pilot / prototype )
Air-water interface
Sea bed
B of F (water)
Anchoring /foundations
Device
Ice or other bodies
B of F (air)
Impact of Technology on Environment
Impact of Environment on Technology
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IOT Facilities
• Offshore Engineering Basin - 75m x 32m. Waves, current, and wind.• Towing Tank - 200m with wavemaker, carriage speed up to 10 m/s.• Ice Tank - 90m, carriage speed up to 4 m/s.• Cavitation Tunnel• 5 Axis Milling Machine• Model construction facilities.• Electronics and instrumentation
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IOT Facilities
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IOT Ocean Energy Activities
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IOT Field Trials
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IOT Field Trials
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Sample TRIAXYS Wave Buoy Results
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IOT Numerical Capability
• CFD – Flow 3D, Fluent, Navier-Stokes analysis.• WAMIT• MOTSIM – Vessel Motion Analysis• Propella – Propeller Design Evaluation• Ansys/LS-Dyna – Ice Structure Interaction• Orcaflex• In-house mooring simulation (non-linear coupled motions).
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Other (ocean energy) research facilities in St. John’s
• Memorial University of Newfoundland – 58m Tow Tank• MUN Marine Institute – Flume Tank test section dimensions 8m wide x 4m deep x 22.25m
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IOT : Ocean Energy Goals
• To provide Canadian ocean energy technology and project developers with performance evaluation tools and expertise.
– Numerical simulation,– Physical model testing,– Field trials and monitoring.
• To do this in collaboration with Canadian and International research organizations.
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IOT Ocean Energy Activities
• Early evaluation of “novel” ocean energy device concepts.• Model scale performance evaluation of wave and in-
stream ocean energy devices in IOT facilities (i.e. Waveberg, WET, Clean Current, MAVI, CNA ).
• Wave and current monitoring for site evaluation: wave buoy and ADCP deployments.
• Ocean Energy Technology Screening, part of the Multidimensional Analysis Study (NRCan, IC and EC)
• OREG Symposium Fall 2005 at IOT.
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IOT Ocean Energy Activities
• WEC scaling issues, wave – current interaction, changes in wave characteristics in shallow water, wec farm effects.
• Study on the presence of ice in the headwaters of the Bay of Fundy by Sanders Resource Management, Incorporated; in particular at the sites identified by EPRI. Available on OREG website.
• Report on Engineering issues in the Harvest of tidal electricity in the Bay of Fundy submitted to ECOR Symposium 2008, Sanders, R. et al. Available on OREG website.
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Ocean Energy Issues
• Hydrodynamic performance optimization.• Mooring /anchoring /station keeping system analysis.• Operability and survivability.• Concept optimization.• Deployment and decommissioning issues.• Site specific evaluation of wave, current, and wind conditions. Required to
establish accurate environmental loading for structural design, mooring, and deployment issues.
• Wind energy• Corrosion and fouling issues. Environmental impact on technology. • Deadheads (also called sinker logs or snags) and other floating or submerged
bodies• Ice issues:
o Ice loading on structures, o Ice occurrence, ice cakes – frequency, duration, intensity,o Ice mitigation.
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Ice Cakes anyone?
Man Standing beside an approx 10 t Ice Cake grounded on frozen intertidal mudflatNear Windsor Nova Scotia ( R. Sanders Ice Cake Telemetry to Quantify the Possible Impact of negatively buoyant ice cakes, 2009)
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Ice Cakes anyone?
Composite Ice Cake Near Truro, Nova ScotiaR. Sanders Ice Cake Telemetry to Quantify the Possible Impact of negatively buoyant ice cakes, 2009. Sanders Resource Management, Halifax, NS.
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What can IOT offer?
• Ocean engineering performance evaluation expertise and facilities.• In-kind support for activities conducted with IOT.• Links with other Canadian research organizations and NRC-IRAP.• Ocean Technology Enterprise Centre (OTEC). Technology/Business
incubator programs (http://iot-ito.nrc-cnrc.gc.ca/enterprise_e.html).
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Summary
• OE performance evaluation , monitoring and modeling tools should be considered part of the development supply chain.
• Risk reduction for ocean energy technology and project developers, investors, and regulators.
• Development of Canadian OE technology.• Strengthen links with Canadian and International research
organizations, focusing on ocean energy technology issues.
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Questions?
• Contact Information
• Bruce Parsons – 709-772-2326• [email protected]• Fraser Winsor – 709-772-2582• [email protected]• Emile Baddour – 709-772-0817• [email protected]
• http://iot-ito.nrc-cnrc.gc.ca/about_e.html