Experimental investigation and performance comparison of a single OWC, array and M-OWC.

Doyle, Simeon and Aggidis, George (2020) Experimental investigation and performance comparison of a single OWC, array and M-OWC. Renewable Energy. ISSN 0960-1481 (In Press)

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Ocean wave energy continues to develop through innovation and a growing number of collaborations around the world. For wave energy to become more competitive in the renewable energy mix, such innovations should benefit the wave energy sector and other technological applications by providing attractive options for synergies on novel projects. This paper concerns the experimental investigation of Oscillating Water Column (OWC) Wave Energy Converter (WEC) technology and its potential as a Multi-Oscillating Water Column (M-OWC). This research investigation utilises a progressive and pragmatic experimental modelling approach, by cross comparing the models of a single standalone OWC, an OWC array and finally a modular M-OWC under the same environment and test conditions. Performance and characteristic responses are analysed while varying the values of OWC spacing, damping and wave conditions. The results indicate that the spacing of OWC chambers affects significantly the performance of an M-OWC. While performance improves with increasing the spacing, the efficiency of the M-OWC is greater than that of a single OWC or OWC array at reduced spacing values. In addition, the results indicate that an OWC array is less efficient by having individual power take-off systems operating in isolation as opposed to the modular M-OWC.

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Journal Article
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Renewable Energy
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Deposited On:
11 Dec 2020 20:29
In Press
Last Modified:
27 Dec 2020 07:20