A novel geometry of an onshore Oscillating Water Column wave energy converter

A.K. Güths, P.R.F. Teixeira and E. Didier

Renewable Energy, 2022, vol. 201, issue P1, 938-949

Abstract: This study aims proposing a novel geometry of the onshore Oscillating Water Column (OWC) device to increase its efficiency. A comparison between standard OWC's and the new proposal ones, in which the exterior front wall is inclined in opposite direction from that of the incident wave, is carried out. Simulations of 2D flows, with incompressible water and compressible air, are performed by means of the FLUENT® software, which is based on Reynolds-Averaged Navier-Stokes equations. The k-ϵ turbulence model and the Volume of Fluid method are employed. Analyses of the hydrodynamic and aerodynamic behavior, run-up/down on the exterior front wall, sloshing inside the chamber and the energy balance of OWC devices equipped with the Wells turbine and with different wall slopes (40° − 90° from horizontal) are carried out for incident regular waves with periods from 6 to 12 s and height of 1.5 m. The new proposal OWC's provide higher extracted energy than standard ones. The best performances are reached by wall slope of external front wall of 40° and internal wall slopes of 40° and 52°, although the more efficient solution depends on the sea state characteristics of the region where the OWC will be installed.

Keywords: Oscillating water column; Wave energy; Renewable energy; numerical simulation (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148122016238
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:201:y:2022:i:p1:p:938-949

DOI: 10.1016/j.renene.2022.10.121

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().