Tidal turbine blade selection for optimal performance in an array

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 a...

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Main Authors: Nicholls-Lee, Rachel F., Turnock, Stephen R., Boyd, Stephen W.
Format: Conference Object
Language:English
Published: American Society Of Mechanical Engineers (ASME) 2011
Subjects:
Online Access:https://eprints.soton.ac.uk/192415/
https://eprints.soton.ac.uk/192415/1/OMAE2011-49943_RNL_FINAL.pdf
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spelling ftsouthampton:oai:eprints.soton.ac.uk:192415 2023-07-30T03:59:56+02:00 Tidal turbine blade selection for optimal performance in an array Nicholls-Lee, Rachel F. Turnock, Stephen R. Boyd, Stephen W. 2011 text https://eprints.soton.ac.uk/192415/ https://eprints.soton.ac.uk/192415/1/OMAE2011-49943_RNL_FINAL.pdf en eng American Society Of Mechanical Engineers (ASME) https://eprints.soton.ac.uk/192415/1/OMAE2011-49943_RNL_FINAL.pdf Nicholls-Lee, Rachel F., Turnock, Stephen R. and Boyd, Stephen W. (2011) Tidal turbine blade selection for optimal performance in an array. In Proceedings of the 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011), June 19-24, 2011, Rotterdam, The Netherlands. American Society Of Mechanical Engineers (ASME). 9 pp . Conference or Workshop Item PeerReviewed 2011 ftsouthampton 2023-07-09T21:22:54Z 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 bi-directional 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. Conference Object Arctic University of Southampton: e-Prints Soton
institution Open Polar
collection University of Southampton: e-Prints Soton
op_collection_id ftsouthampton
language English
description 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 bi-directional 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.
format Conference Object
author Nicholls-Lee, Rachel F.
Turnock, Stephen R.
Boyd, Stephen W.
spellingShingle Nicholls-Lee, Rachel F.
Turnock, Stephen R.
Boyd, Stephen W.
Tidal turbine blade selection for optimal performance in an array
author_facet Nicholls-Lee, Rachel F.
Turnock, Stephen R.
Boyd, Stephen W.
author_sort Nicholls-Lee, Rachel F.
title Tidal turbine blade selection for optimal performance in an array
title_short Tidal turbine blade selection for optimal performance in an array
title_full Tidal turbine blade selection for optimal performance in an array
title_fullStr Tidal turbine blade selection for optimal performance in an array
title_full_unstemmed Tidal turbine blade selection for optimal performance in an array
title_sort tidal turbine blade selection for optimal performance in an array
publisher American Society Of Mechanical Engineers (ASME)
publishDate 2011
url https://eprints.soton.ac.uk/192415/
https://eprints.soton.ac.uk/192415/1/OMAE2011-49943_RNL_FINAL.pdf
genre Arctic
genre_facet Arctic
op_relation https://eprints.soton.ac.uk/192415/1/OMAE2011-49943_RNL_FINAL.pdf
Nicholls-Lee, Rachel F., Turnock, Stephen R. and Boyd, Stephen W. (2011) Tidal turbine blade selection for optimal performance in an array. In Proceedings of the 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011), June 19-24, 2011, Rotterdam, The Netherlands. American Society Of Mechanical Engineers (ASME). 9 pp .
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