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Experimental testing of bi-directional tidal turbine rotors
Citation
Cropp, C and Penesis, I and Walker, J and Liu, P and Frost, R, Experimental testing of bi-directional tidal turbine rotors, Proceedings of the 11th European Wave and Tidal Energy Conference, 06-11 September 2015, Nantes, France, pp. 1-7. ISSN 2309-1983 (2015) [Refereed Conference Paper]
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Copyright Statement
Copyright 2015 European Wave and Tidal Energy Conference 2015
Official URL: http://www.ewtec.org/about/
Abstract
Performance characteristics of 7 bi-directional tidal
turbine rotors were investigated in a circulating water channel
(CWC). The effects of Reynolds number, pitch distribution, pitch
ratio and solidity were evaluated and the influence of testing in
turbulent flow discussed. An open boat assembly was used to
house a Cussons dynamometer, to measure torque and thrust,
and a Dunkermotor to control the shaft speed. The findings
indicated that testing in the CWC, as opposed to a towing tank
(TT), will produce a maximum power coefficient of
approximately 50% less. This was attributed to the threedimensional
turbulent flow of the CWC and the sensitivity of the
performance characteristics of a horizontal axis tidal turbine
(HATT) with respect to the inflow quality. Reynolds
independence was reached at an inflow speed of 1.5 m/s; with
maximum performance characteristics obtained by rotor 6, with
a solidity ratio of 0.4. Further work to investigate rotor pitch can
be carried out to optimise this type of rotor and complete a
baseline data set necessary for organising full scale testing and
analysis.
Item Details
Item Type: | Refereed Conference Paper |
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Keywords: | marine current turbine, tidal energy, model scale test, solidity, circulating water channel |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Ocean engineering |
Objective Division: | Energy |
Objective Group: | Renewable energy |
Objective Field: | Tidal energy |
UTAS Author: | Cropp, C (Mr Charles Cropp) |
UTAS Author: | Penesis, I (Professor Irene Penesis) |
UTAS Author: | Walker, J (Dr Jessica Walker) |
UTAS Author: | Frost, R (Mr Rowan Frost) |
ID Code: | 106803 |
Year Published: | 2015 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2016-02-22 |
Last Modified: | 2016-08-05 |
Downloads: | 4 View Download Statistics |
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