We present a study on a laboratory model of an innovative wave energy converter, EDS (Energy Double System), patented by Tecnomac srl (http://tecnomac.it/). EDS is a point absorber composed by two elements : a heaving float and a paddle, that collects the surge (one-way) force of breaking waves . Float and paddle are mounted on the same arm and they are aligned along the wave propagation direction; paddle is mounted behind the float. The EDS machine is designed for working in the breaker zone, at typical depth of 5-10 m (but even less, depending on the beach morphology and the wave spectrum of the site). The idea of EDS is to exploit waves shortly before they break, while their energy content is still considerable, and when they generate high horizontal loads. The EDS model was tested in an experimental wave flume, on a 1:8 slope beach, with different waves breaking on the beach. We found out efficiency (CWR) ranging from 20 to 40 % with respect to the power of the oncoming wave. The experimental campaign was carried out in the Hydraulics Laboratory of Politecnico di Milano.
Harvesting breaking wave energy
NEGRI, MARCO;MALAVASI, STEFANO
2013-01-01
Abstract
We present a study on a laboratory model of an innovative wave energy converter, EDS (Energy Double System), patented by Tecnomac srl (http://tecnomac.it/). EDS is a point absorber composed by two elements : a heaving float and a paddle, that collects the surge (one-way) force of breaking waves . Float and paddle are mounted on the same arm and they are aligned along the wave propagation direction; paddle is mounted behind the float. The EDS machine is designed for working in the breaker zone, at typical depth of 5-10 m (but even less, depending on the beach morphology and the wave spectrum of the site). The idea of EDS is to exploit waves shortly before they break, while their energy content is still considerable, and when they generate high horizontal loads. The EDS model was tested in an experimental wave flume, on a 1:8 slope beach, with different waves breaking on the beach. We found out efficiency (CWR) ranging from 20 to 40 % with respect to the power of the oncoming wave. The experimental campaign was carried out in the Hydraulics Laboratory of Politecnico di Milano.File | Dimensione | Formato | |
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