In order to maximize tidal energy capture from a specific site free stream devices are situated in arrays. In an array the downstream evolution of the wake generated by a rotating tidal energy conversion device influences the performance of the device itself, the bypass flow to either side as well as the performance of any downstream device. As such it is important to design a turbine that can perform efficiently and effectively in these circumstances. Use of passively adaptive composite blades for horizontal axis tidal turbines has been shown to improve performance in fluctuating inflows. Active adaptation and/or bi-directional hydrofoil sections could be implemented in order to optimize performance throughout the tidal cycle. This paper considers the performance in an array of four free stream turbines implementing standard rigid blades, wholly bidirectional blades, passively adaptive blades and actively adaptive blades. The method used to evaluate the performance of tidal current turbines in arrays couples an inner domain solution of the blade element momentum theory with an outer domain solution of the Reynolds averaged Navier Stokes equations. The annual energy capture of four devices with each blade type in a staggered array is then calculated for a single tidal cycle and compared.
Skip Nav Destination
ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
June 19–24, 2011
Rotterdam, The Netherlands
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4437-3
PROCEEDINGS PAPER
Tidal Turbine Blade Selection for Optimal Performance in an Array Available to Purchase
Rachel F. Nicholls-Lee,
Rachel F. Nicholls-Lee
University of Southampton, Southampton, Hampshire, UK
Search for other works by this author on:
Stephen R. Turnock,
Stephen R. Turnock
University of Southampton, Southampton, Hampshire, UK
Search for other works by this author on:
Stephen W. Boyd
Stephen W. Boyd
University of Southampton, Southampton, Hampshire, UK
Search for other works by this author on:
Rachel F. Nicholls-Lee
University of Southampton, Southampton, Hampshire, UK
Stephen R. Turnock
University of Southampton, Southampton, Hampshire, UK
Stephen W. Boyd
University of Southampton, Southampton, Hampshire, UK
Paper No:
OMAE2011-49943, pp. 739-747; 9 pages
Published Online:
October 31, 2011
Citation
Nicholls-Lee, RF, Turnock, SR, & Boyd, SW. "Tidal Turbine Blade Selection for Optimal Performance in an Array." Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. Volume 5: Ocean Space Utilization; Ocean Renewable Energy. Rotterdam, The Netherlands. June 19–24, 2011. pp. 739-747. ASME. https://doi.org/10.1115/OMAE2011-49943
Download citation file:
21
Views
Related Proceedings Papers
Related Articles
Structural Dynamic Analysis of a Tidal Current Turbine Using Geometrically Exact Beam Theory
J. Offshore Mech. Arct. Eng (April,2018)
Adaptive Composite Marine Propulsors and Turbines: Progress and Challenges
Appl. Mech. Rev (November,2016)
Related Chapters
Introduction
Turbine Aerodynamics: Axial-Flow and Radial-Flow Turbine Design and Analysis
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Introduction I: Role of Engineering Science
Fundamentals of heat Engines: Reciprocating and Gas Turbine Internal Combustion Engines