Enhancing performance of a horizontal axis tidal turbine using adaptive blades
Enhancing performance of a horizontal axis tidal turbine using adaptive blades
Free stream tidal turbines are a source of growing interest in the marine renewable energy field. Some designs use variable pitch blade control devices in order to maximize the efficiency of the turbines; however these are complex to design, construct and maintain under the severe load conditions sub sea devices experience. Adaptive materials have been used in the wind industry to create bend-twist coupled blades in an effort to bring turbine efficiency ever closer to the Betz limit, and increase annual energy capture. This work encompasses a feasibility study, focusing on hydrodynamic performance calculations, wherein the blade geometry is artificially reconfigured as a function of flow velocity. The pressure distribution over the blade is also analysed. The concept of a passively adaptive tidal turbine blade is shown to increase annual energy capture, reduce blade loading and delay cavitation inception.
adaptive systems, cavitation, marine, renewable energy, tidal power generation, turbines
9781424406357
1-6
Nicholls-Lee, Rachel
fd9cdb57-400c-4444-8ed1-2430bac366e6
Turnock, Stephen R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
18 June 2007
Nicholls-Lee, Rachel
fd9cdb57-400c-4444-8ed1-2430bac366e6
Turnock, Stephen R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Nicholls-Lee, Rachel and Turnock, Stephen R.
(2007)
Enhancing performance of a horizontal axis tidal turbine using adaptive blades.
In OCEANS 2007 - Europe.
IEEE.
.
(doi:10.1109/OCEANSE.2007.4302437).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Free stream tidal turbines are a source of growing interest in the marine renewable energy field. Some designs use variable pitch blade control devices in order to maximize the efficiency of the turbines; however these are complex to design, construct and maintain under the severe load conditions sub sea devices experience. Adaptive materials have been used in the wind industry to create bend-twist coupled blades in an effort to bring turbine efficiency ever closer to the Betz limit, and increase annual energy capture. This work encompasses a feasibility study, focusing on hydrodynamic performance calculations, wherein the blade geometry is artificially reconfigured as a function of flow velocity. The pressure distribution over the blade is also analysed. The concept of a passively adaptive tidal turbine blade is shown to increase annual energy capture, reduce blade loading and delay cavitation inception.
Text
04302437.pdf
- Version of Record
Restricted to Repository staff only
Request a copy
More information
Published date: 18 June 2007
Venue - Dates:
OCEANS 2007 - Europe, Aberdeen, Scotland, 2007-06-18 - 2007-06-21
Keywords:
adaptive systems, cavitation, marine, renewable energy, tidal power generation, turbines
Organisations:
Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 47124
URI: http://eprints.soton.ac.uk/id/eprint/47124
ISBN: 9781424406357
PURE UUID: 45fcae77-fc05-4962-92c9-3479d3101c3b
Catalogue record
Date deposited: 02 Oct 2007
Last modified: 16 Mar 2024 02:37
Export record
Altmetrics
Contributors
Author:
Rachel Nicholls-Lee
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
