Access to this article is restricted until 24 months after publication by request of the publisher.. Restriction lift date: 2021-06-20
Sensitivity of OWC performance to air compressibility
| dc.check.date | 2021-06-20 | |
| dc.check.info | Access to this article is restricted until 24 months after publication by request of the publisher. | en |
| dc.contributor.author | López, Iván | |
| dc.contributor.author | Carballo, Rodrigo | |
| dc.contributor.author | Taveira-Pinto, Francisco | |
| dc.contributor.author | Iglesias, Gregorio | |
| dc.contributor.funder | Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia | en |
| dc.contributor.funder | FP7 People: Marie-Curie Actions | en |
| dc.date.accessioned | 2019-07-12T11:50:48Z | |
| dc.date.available | 2019-07-12T11:50:48Z | |
| dc.date.issued | 2019-06-20 | |
| dc.date.updated | 2019-07-12T11:42:41Z | |
| dc.description.abstract | Air compressibility is often neglected in experimental work due to practical difficulties, even though it is known to affect the performance of OWC wave energy converters. The key question, of course, is to what extent. In this work the impact of air compressibility on the capture width ratio is thoroughly quantified by means of a comprehensive experimental campaign, with no fewer than 330 tests encompassing a wide range of wave conditions and levels of turbine-induced damping, and two experimental set-ups: one designed to account for air compressibility, the other to neglect it. This approach is complemented with the use of the RANS-based CFD model OpenFOAM® to calibrate the pressure-vs-flowrate curves, which enables the flowrate to be determined based on the pressure drop measurements from the physical model. We find that the errors that derive from disregarding air compressibility may lead to either under- or over-predictions of power output, and are highly dependent on the operating conditions, more specifically the wave conditions (sea state) and turbine-induced damping. | en |
| dc.description.status | Peer reviewed | en |
| dc.description.version | Accepted Version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | López, I., Carballo, R., Taveira-Pinto, F. and Iglesias, G. (2019) 'Sensitivity of OWC performance to air compressibility', Renewable Energy, 145, pp. 1334-1347. doi: 10.1016/j.renene.2019.06.076 | en |
| dc.identifier.doi | 10.1016/j.renene.2019.06.076 | en |
| dc.identifier.endpage | 1347 | en |
| dc.identifier.issn | 0960-1481 | |
| dc.identifier.issn | 1879-0682 | |
| dc.identifier.journaltitle | Renewable Energy | en |
| dc.identifier.startpage | 1334 | en |
| dc.identifier.uri | https://hdl.handle.net/10468/8154 | |
| dc.identifier.volume | 145 | en |
| dc.language.iso | en | en |
| dc.publisher | Elsevier Ltd. | en |
| dc.relation.project | info:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/618556/EU/Wave Farm Impacts and Design/WAVEIMPACT | en |
| dc.relation.uri | http://www.sciencedirect.com/science/article/pii/S0960148119309048 | |
| dc.rights | © 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license. | en |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | en |
| dc.subject | Wave energy | en |
| dc.subject | Wave power | en |
| dc.subject | Oscillating water column | en |
| dc.subject | Physical modelling | en |
| dc.subject | CFD | en |
| dc.subject | Capture-width ratio | en |
| dc.title | Sensitivity of OWC performance to air compressibility | en |
| dc.type | Article (peer-reviewed) | en |
