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Contra-rotating marine current turbines : performance in field trials and power train developments

Clarke, Joe and Connor, Gary and Grant, Andrew and Johnstone, Cameron and Ordonez Sanchez, Stephanie Eugenia (2008) Contra-rotating marine current turbines : performance in field trials and power train developments. In: 10th World Renewable Energy Congress, 2008-07-19 - 2008-07-25.

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Abstract

Development of a novel contra-rotating marine current turbine has been continuing at the University of Strathclyde. Continuous monitoring of blade bending loads during trials has enabled an investigation of blade-blade and blade-structure interactions. The former are a particular concern with a contra-rotating turbine, but there is now evidence to suggest that in normal operation these are relatively small. By contrast, blade-structure effects are clearly visible. A turbine complete with single-point mooring and submersible contra-rotating generator is presently being prepared for sea trials. Details of the machine and the test programme are described.