An Experimental Study of Closely Spaced Point Absorber Arrays

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Experimental measurements of the response of a group of closely spaced heaving devices are reported. Details of the experimental technique are presented and the effect of both array size and configuration on the power output and response of individual floats is reported and compared to an isolated float. Power output measurements relate to a non-linear drivetrain representative of the Manchester Bobber wave energy device in which each float and counterweight is supported from a pulley which drives a flywheel and generator. Net power amplification relative to an equal number of isolated floats is observed at several wave frequencies, generally when the wave period is greater than natural period. Response measurements are also presented with negligible mechanical friction (i.e. free-response) to provide dataset for easy comparison of response to general numerical simulation. As theory suggests, the measurements indicate that response and net power capture is amplified at particular ratios of device spacing to wavelength.

Bibliographical metadata

Original languageEnglish
Title of host publicationProceedings of the Eighteenth (2008) International Offshore and Polar Engineering Conference Vancouver, BC, Canada, July 6-11, 2008
Pages417-424
Number of pages8
Publication statusPublished - 2008
EventProceedings of the Eighteenth (2008) International Offshore and Polar Engineering Conference Vancouver, BC, Canada, July 6-11, 2008 -
Event duration: 1 Jan 1824 → …

Conference

ConferenceProceedings of the Eighteenth (2008) International Offshore and Polar Engineering Conference Vancouver, BC, Canada, July 6-11, 2008
Period1/01/24 → …