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http://dx.doi.org/10.9765/KSCOE.2014.26.2.103

Wave-Energy Extraction by a Compact Circular Array of Buoys  

Cho, Il-Hyoung (Department of Ocean System Engineering, Jeju National University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.26, no.2, 2014 , pp. 103-111 More about this Journal
Abstract
The wave power, extracted from a circular array of small power buoys, is investigated under the potential theory. It is assumed that the buoy's radius, the draft, and the separation distance are much smaller than the water depth, the wave length, and the radius of a circular deployment area. The boundary value problem involving the macro-scale boundary condition on the mean surface covered by buoys is solved using the eigenfunction expansion method. The capture width, which is defined as the ratio of the extracted power to the wave power per unit length of the incident wave crest, is assessed for various combinations of packing ratio, radius of a circular array, and PTO damping coefficient. It is found that the circular array deployment is more effective in the viewpoint of efficiency than the single large buoy of the same total displaced volume.
Keywords
wave energy converter; circular array; extracted power; eigenfunction expansion method; capture width;
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Times Cited By KSCI : 2  (Citation Analysis)
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