Reduction of tidal turbines hydrodynamic loads employing bend-twist adaptive blades

Maria Hernandez Somoza, Terence Macquart, Alireza Maheri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The present paper is one of the first to investigate the use of bend-twist adaptive blades on a variable-speed pitch-controlled tidal turbine in order to reduce hydrodynamic loads. The realisation of the substantial unexploited hydrokinetic energy of tides is currently driving hydrokinetic turbine research. In contrast to wind turbines, tidal technology has not yet reached maturity and new designs are required in order to take into account cavitation, leading edge roughness, and the high energy density of flowing water. In particular, reinforced blade structures are required to deal with the high hydrodynamic loads experienced by tidal turbines. In this research, the potential benefit of using bend-twist adaptive blades on tidal turbines in order to reduce hydrodynamic loads is explored. A Tidal Turbine Hydrodynamic code (TTHydro) capable of simulating tidal turbines equipped with adaptive blades is developed and validated. It is found that employing bend-twist adaptive blades on variable-speed pitch-controlled tidal turbines reduces both power and loads. It was also observed that a substantial reduction of hydrodynamic loads could be achieved at the price of a small power loss.
Original languageEnglish
Title of host publication3rd International Symposium on Environmental Friendly Energies and Applications (EFEA)
PublisherIEEE Press
Pages1-5
Number of pages5
ISBN (Electronic)9781479975174
ISBN (Print)9781479975181
DOIs
Publication statusPublished - Nov 2014
Event3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) - Paris, France
Duration: 19 Nov 201421 Nov 2014

Conference

Conference3rd International Symposium on Environmental Friendly Energies and Applications (EFEA)
CountryFrance
CityParis
Period19/11/1421/11/14

Fingerprint

Turbomachine blades
Turbines
Hydrodynamics
Tides
Cavitation
Wind turbines
Surface roughness
Water

Keywords

  • tidal turbines
  • bend-twist adaptive blades
  • load reduction
  • blade design
  • blade optimisation

Cite this

Somoza, M. H., Macquart, T., & Maheri, A. (2014). Reduction of tidal turbines hydrodynamic loads employing bend-twist adaptive blades. In 3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) (pp. 1-5). IEEE Press. https://doi.org/10.1109/EFEA.2014.7059983

Reduction of tidal turbines hydrodynamic loads employing bend-twist adaptive blades. / Somoza, Maria Hernandez; Macquart, Terence; Maheri, Alireza.

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA). IEEE Press, 2014. p. 1-5.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Somoza, MH, Macquart, T & Maheri, A 2014, Reduction of tidal turbines hydrodynamic loads employing bend-twist adaptive blades. in 3rd International Symposium on Environmental Friendly Energies and Applications (EFEA). IEEE Press, pp. 1-5, 3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) , Paris, France, 19/11/14. https://doi.org/10.1109/EFEA.2014.7059983
Somoza MH, Macquart T, Maheri A. Reduction of tidal turbines hydrodynamic loads employing bend-twist adaptive blades. In 3rd International Symposium on Environmental Friendly Energies and Applications (EFEA). IEEE Press. 2014. p. 1-5 https://doi.org/10.1109/EFEA.2014.7059983
Somoza, Maria Hernandez ; Macquart, Terence ; Maheri, Alireza. / Reduction of tidal turbines hydrodynamic loads employing bend-twist adaptive blades. 3rd International Symposium on Environmental Friendly Energies and Applications (EFEA). IEEE Press, 2014. pp. 1-5
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