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Partrac wraps up turbulence survey

22 July 2014
Partrac has completed the first survey for the Carbon Trust-managed Turbulence in Marine Environments project aimed at improving tidal energy site mapping. The work was carried out in the Sound of Islay in April and May and designed by Partrac with project partners Ocean Array Systems, ABPmer and ITPower. Rockland Scientific International provided “innovative turbulence measurement instruments”. The survey included four standard acoustic doppler current profiler units and one advanced five-beam Nortek AD2CP unit, each positioned on the seabed. Three of the locations were at positions where tidal turbines will be installed. An RSI Nemo turbulence mooring was also deployed so that data could be measured at turbine hub height. Partrac director Peter Wilson said “This is the first time such a large survey has been designed to specifically measure turbulence using a range of acoustic and non-acoustic measurement techniques. “To get data at hub height is a first in such tidal currents and to be able to map turbulence across a development site will be invaluable to developers.” The data collected has been post-processed by Partrac and RSI and is being provided to the partners for the next stage of the project. ABPmer is tackling resource characterisation, Ocean Array Systems is providing turbulence characterisation and hydrodynamic analyses, and ITPower is contributing its “knowledge of engineering design and device performance”. The next survey deployment is planned for the Inner Sound of the Pentland Firth at the end of the summer. The TiME project was announced by Scottish energy minister Fergus Ewing in February when it was awarded funding from the Scottish government’s Marine Renewables Commercialisation Fund Array Technology Innovation Programme
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