Ducted Horizontal Axis Marine Turbine Design for the race of Alderney - Archive ouverte HAL Access content directly
Conference Papers Year :

Ducted Horizontal Axis Marine Turbine Design for the race of Alderney

(1) , , (1)
1
Jean-Marc Laurens
  • Function : Author
  • PersonId : 897422
M Ait-Mohammed
  • Function : Author
Mostapha Tarfaoui

Abstract

To convert the kinetic energy of marine current into electricity, the most sensible generator is a horizontal axis turbine. The know-how and the tools used for marine propulsion devices find a new range of applications in this field. An academic panel method code developed for the design of bare and ducted marine propellers was applied to design a marine current turbine. The turbine dimension and the tidal current velocity have been taken to fit the conditions in the Race of Alderney. The wing section theory and the optimum rotor theory based on the blade element momentum were used to obtain the design condition and a first geometry approaching the Betz limit for a bare rotor. The panel method was then used to verify the power coefficient obtained in the presence of the 3D effects and if the cavitation constraints are respected. Subsequently, the same panel code was used to verify if the addition of a duct could improve the power output per unit surface. The optimized bare turbine almost reaches 90% of the Betz limit and the optimized duct increases the output by 20% respecting the same overall cross section area.
Fichier principal
Vignette du fichier
laurens IMAM2017.pdf (241.73 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-02115559 , version 1 (30-04-2019)

Identifiers

  • HAL Id : hal-02115559 , version 1

Cite

Jean-Marc Laurens, M Ait-Mohammed, Mostapha Tarfaoui. Ducted Horizontal Axis Marine Turbine Design for the race of Alderney. IMAM2017, Nov 2017, Lisbonne, Portugal. ⟨hal-02115559⟩
61 View
138 Download

Share

Gmail Facebook Twitter LinkedIn More