Modelling of the WITT wave energy converter
Modelling of the WITT wave energy converter
The paper describes the theoretical modelling and experimental validation of a novel design of ocean wave energy converter which is comprised of a floating, moored, spherical hull containing a mechanical pendulum arrangement from which power is taken when excited by incident waves. Experimental results are shown to compare favourably with those predicted by the theory. An explicit expression is derived for the capture width of the proposed device in terms of physical and hydrodynamic parameters. This exposes the multiple resonant characteristics of the device which enable it to operate effectively over a broad range of wave periods. The subsequent efficient computations allows a numerical optimisation of the design to be performed over a large space of device parameters and model sea spectrum. The work is focussed towards producing reliable estimates for the power capacity of different sized devices deployed at the EMEC site in Scotland. Predictions compare favourably with existing wave energy converter concepts.
159-174
Crowley, S.
1dd6fd4f-44c7-4b70-b7d8-80ecdd6c7a3b
Porter, R.
95d53060-e45c-47c0-a6f1-747a0e10d68f
Taunton, D.J.
10bfbe83-c4c2-49c6-94c0-2de8098c648c
Wilson, Philip A.
8307fa11-5d5e-47f6-9961-9d43767afa00
15 January 2018
Crowley, S.
1dd6fd4f-44c7-4b70-b7d8-80ecdd6c7a3b
Porter, R.
95d53060-e45c-47c0-a6f1-747a0e10d68f
Taunton, D.J.
10bfbe83-c4c2-49c6-94c0-2de8098c648c
Wilson, Philip A.
8307fa11-5d5e-47f6-9961-9d43767afa00
Crowley, S., Porter, R., Taunton, D.J. and Wilson, Philip A.
(2018)
Modelling of the WITT wave energy converter.
Renewable Energy, 115, .
(doi:10.1016/j.renene.2017.08.004).
Abstract
The paper describes the theoretical modelling and experimental validation of a novel design of ocean wave energy converter which is comprised of a floating, moored, spherical hull containing a mechanical pendulum arrangement from which power is taken when excited by incident waves. Experimental results are shown to compare favourably with those predicted by the theory. An explicit expression is derived for the capture width of the proposed device in terms of physical and hydrodynamic parameters. This exposes the multiple resonant characteristics of the device which enable it to operate effectively over a broad range of wave periods. The subsequent efficient computations allows a numerical optimisation of the design to be performed over a large space of device parameters and model sea spectrum. The work is focussed towards producing reliable estimates for the power capacity of different sized devices deployed at the EMEC site in Scotland. Predictions compare favourably with existing wave energy converter concepts.
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Submitted date: 23 June 2017
Accepted/In Press date: 3 August 2017
e-pub ahead of print date: 7 August 2017
Published date: 15 January 2018
Identifiers
Local EPrints ID: 414291
URI: http://eprints.soton.ac.uk/id/eprint/414291
ISSN: 0960-1481
PURE UUID: 93621a60-7b67-4a56-9fb3-aa1bc13700c4
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Date deposited: 25 Sep 2017 16:31
Last modified: 16 Mar 2024 05:28
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Author:
S. Crowley
Author:
R. Porter
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