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Experimental investigation of multiple oscillating water column wave energy converters integrated in a floating breakwater: Wave attenuation and motion characteristics

Citation

Howe, DP and Nader, J-R and MacFarlane, G, Experimental investigation of multiple oscillating water column wave energy converters integrated in a floating breakwater: Wave attenuation and motion characteristics, Applied Ocean Research, 99 Article 102160. ISSN 0141-1187 (2020) [Refereed Article]

Copyright Statement

2020 Elsevier Ltd. All rights reserved.

DOI: doi:10.1016/j.apor.2020.102160

Abstract

This article is Part B of a study into the proof-of-concept of a floating breakwater integrated with multiple Oscillating Water Column (OWC) Wave Energy Converters (WEC). The structure is designed for nearshore and offshore applications and the investigation was performed through model scale hydrodynamic experimentation. Part A introduced the concept and the experiments performed, followed by an investigation into the energy extraction performance of the installed OWC devices [1]. This paper covers the impact of the OWC WECs on the floating breakwater's wave attenuation and motion characteristics. As this investigation took a proof-of-concept approach, a soft mooring system was configured to the device in order to establish the general behaviour of the structure. Results indicate that the pitch motion was the most detrimental motion in terms of OWC device performance, but this is expected to be mitigated with incorporation of realistic mooring arrangements. Additionally, findings infer that in majority of cases, OWC device integration has beneficial impacts on both the wave attenuation and motions of the breakwater structure, lending further credence to the economic and performance viability of the concept.

Item Details

Item Type:Refereed Article
Keywords:oscillating water column, wave energy converter, floating breakwater, hydrodynamic experimentation, wave attenuation, motion
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ocean engineering
Objective Division:Energy
Objective Group:Renewable energy
Objective Field:Wave energy
UTAS Author:Howe, DP (Dr Damon Howe)
UTAS Author:Nader, J-R (Dr Jean-Roch Nader)
UTAS Author:MacFarlane, G (Associate Professor Gregor MacFarlane)
ID Code:139126
Year Published:2020
Web of Science® Times Cited:2
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2020-05-27
Last Modified:2020-07-22
Downloads:0

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