PERFORMANCE OF A CLOSED CYCLE POWER TAKE OFF FOR MUTRIKU BREAKWATER
Citation:
Morgane Bellec, Ciara Gurhy, Lee Gibson & Craig Meskell, PERFORMANCE OF A CLOSED CYCLE POWER TAKE OFF FOR MUTRIKU BREAKWATER, The 12th International Conference on Flow-Induced Vibration., Paris-Saclay, 5-8 July 2022, L. Zimmer, 219 - 226Download Item:
Abstract:
An oscillating water column (OWC) type wave energy converter was installed in Mutriku breakwater
(Basque Country, Spain). The wave power is transferred to an air flow that turns a turbine. The facility
currently uses self-rectifying turbines. A closed cycle
power take off (CCPTO) arrangement, by forcing the
flow to be unidirectional, would allow the use of more
efficient turbines than currently employed. In this paper, a reduced order model for such a system is introduced. Using Mutriku breakwater dimensions the
expected power performance is assessed. The sensitivity of the system to basic geometric features such as
turbine and valves sizes is explored using monochromatic ideal wave. It is found that while there is an
opimal size turbine, there is no benefit to increasing
the valve size beyond a certain area. More realistic sea states representative of Mutriku are investi-
gated using polychromatic waves as an input. The effect of tide is also considered by comparing extreme
high and low tide conditions with the mean tide. It
is found that tide height has a significant impact on
the power production capacity. The trends uncovered
by this work will form a useful basis for the design of
the actual power take off including the unidirectional
turbine
Sponsor
Grant Number
Government of Ireland
SEAI/RDD/495
Author's Homepage:
http://people.tcd.ie/cmeskell
Author: Meskell, Craig
Other Titles:
The 12th International Conference on Flow-Induced Vibration.Type of material:
Conference PaperAvailability:
Full text availableKeywords:
Oscillating water column, Wave power, Renewable energySubject (TCD):
Smart & Sustainable PlanetMetadata
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