Dynamics of a Surface Platform for Testing Hydrokinetic Turbines
This scientific poster was presented at the First Annual INORE North American Symposium, June 17-21, 2012 at the Massachusetts Maritime Academy.
The University of New Hampshire (UNH) Center for Ocean Renewable Energy (CORE), under funding from UMass Dartmouth, is investigating conceptual designs for a tidal hydrokinetic device test facility at Muskeget Channel, in coordination with the Edgartown Tidal Energy Project. The device development scale-up would progress from laboratory, to the UNH CORE site, then to Muskeget Channel for large systems. Three platform concepts are being investigated for testing hydrokinetic turbines of various sizes: A floating platform, a bottom-mounted gravity foundation, and a bottom-mounted pile foundation, which includes both a four-pile group and a two-pile surface-piercing structure that could raise and lower a device. A natural berth option is also being considered. Preliminary designs for each concept are being developed for structural soundness, vibration characteristics, scour, corrosion resistance, bio-fouling, connection to power take-off, monitoring considerations, ease of turbine installation and access, and cost. The designs are compared for the feasibility of their construction and the advantages they offer to turbine developers.
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