Institute for Energy Transition
dedicated to Marine Renewable Energies
RSS News
3e campagne hivernale de mesures
28/10/2019

Launch of the 3rd winter measurement campaign

Essais hydrodynamiques en bassin
18/10/2019

Latest progress of the OMDYN2 project

DUNES R&D project
15/10/2019

DUNES R&D project: information meeting in Dunkirk on 15 October

Pose plaques PVC sur la bouée du site MISTRAL pour étude du biofouling
29/08/2019

Last August, several PVC plates were installed on the keel of two special mark buoys in the Mediterranean Sea.

Atelier thématique TROPHIK
14/06/2019

Thematic and scientific workshop in Caen on 14 June.

MUSCATTS

Multi-scaled approaches at two tidal sites

Duration: 18 months

Context

In-stream tidal turbines are among the most advanced Marine Renewable Energy (MRE) technologies. The lack of knowledge of fluid loadings characteristics at different tidal sites results in certain limitations in the methodology used for fatigue estimation for moving components such as blades and rotors. Nevertheless, fatigue life prediction is a critical parameter impacting the global levelized cost of energy (LCOE), and in particular drives operational and maintenance strategies. Indeed, an accurate prediction of component life expectancy is needed to complete a table of expected maintenance operations.
From this table a feedback loop may be applied to component design in order to optimize the necessary maintenance operations and their high related costs by synchronizing the replacement timing of different components. Similarly, the structural definition of each component may be revised accordingly and new materials
integrated if the predicted durability is insufficient. Consequently, the accuracy of fatigue prediction represents a critical issue in tidal turbine deployment.

Objective

To improve the identification of complex fluid loads in an open tidal power environment (waves + current) in order to improve performance prediction and fatigue dimensioning optimisation of mobile components.

Scientific content

  • Description of flow dynamics at two high potential tidal power sites (Alderney Race and Bay of Fundy in Canada).
  • Proposal of formulations to take into account fluctuating hydrodynamic loads used in fatigue calculations.
  • Improvement of digital models to accurately simulate complex flows.
  • Proposal of recommendations in relation to the specifications for tank tests.

Partners

Les partenaires du projet MUSCATTS

This project is funded by France Energies Marines and the Région Bretagne.