Tidal Energy Round Robin Tests: A Comparison of Flow Measurements and Turbine Loading

Type Article
Date 2021-04
Language English
Author(s) Martinez RodrigoORCID1, Gaurier BenoitORCID2, Ordonez-Sanchez StephanieORCID1, Facq Jean-Valery2, Germain GregoryORCID2, Johnstone Cameron1, Santic IvanORCID3, Salvatore Francesco3, Davey ThomasORCID4, Old ChrisORCID5, Sellar Brian G.ORCID5
Affiliation(s) 1 : ESRU, Department of Mechanical & Aerospace Engineering, University of Strathclyde, James Weir Building, Montrose Street, Glasgow G1 1XJ, UK
2 : Ifremer, Marine Structures Laboratory, 150 Quai Gambetta, 62 200 Boulogne-Sur-Mer, France
3 : Cnr-Inm, National Research Council, Marine Technology Research Institute, Via di Vallerano 139, 00128 Rome, Italy
4 : School of Engineering, Institute for Energy Systems, FloWave Ocean Energy Research Facility, The University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, UK
5 : School of Engineering, Institute for Energy Systems, The University of Edinburgh, Max Born Crescent, Edinburgh EH9 3BF, UK
Source Journal Of Marine Science And Engineering (2077-1312) (MDPI AG), 2021-04 , Vol. 9 , N. 4 , P. 425 (25p.)
DOI 10.3390/jmse9040425
WOS© Times Cited 1
Note This article belongs to the Special Issue Marine Renewables–Infrastructures and Physical Testing
Keyword(s) marine energy, wave and current interactions, Round Robin tests, flow measurements, horizontal axis tidal turbine, uncertainty analysis
Abstract

A Round Robin Tests program is being undertaken within the EC MaRINET2 initiative. This programme studies the used facility influence can have on the performance evaluation of a horizontal axis tidal turbine prototype when it is operated under wave and current conditions. In this paper, we present the design of experiments that is used throughout the work programme and the results related to the flow characterisation obtained at the Ifremer wave and current circulating tank, the Cnr-Inm wave towing tank and the ocean research facility FloWave. These facilities have been identified to provide adequate geometric conditions to accommodate a 0.724 m diameter turbine operating at flow velocities of 0.8 and 1.0 m/s. The set-up is replicated in each of the facilities with exemption of the amount of flow measuring instruments. Intrinsic differences in creating wave and currents between facilities are found. Flow velocities are up to 10% higher than the nominal values and wave amplitudes higher than the target values by up to a factor of 2. These discrepancies are related to the flow and wave generation methods used at each facility. When the flow velocity is measured besides the rotor, the velocity presents an increase of 8% compared to the upstream measurements.

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Martinez Rodrigo, Gaurier Benoit, Ordonez-Sanchez Stephanie, Facq Jean-Valery, Germain Gregory, Johnstone Cameron, Santic Ivan, Salvatore Francesco, Davey Thomas, Old Chris, Sellar Brian G. (2021). Tidal Energy Round Robin Tests: A Comparison of Flow Measurements and Turbine Loading. Journal Of Marine Science And Engineering, 9(4), 425 (25p.). Publisher's official version : https://doi.org/10.3390/jmse9040425 , Open Access version : https://archimer.ifremer.fr/doc/00689/80090/