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dc.contributor.authorMedina-Lopez, Encarnacion
dc.contributor.authorMoñino, A
dc.contributor.authorBorthwick, Alistair
dc.contributor.authorClavero, M
dc.date.accessioned2021-08-22T17:13:30Z
dc.date.available2021-08-22T17:13:30Z
dc.date.issued2017-09
dc.identifier.issn0360-5442
dc.identifier.urihttp://hdl.handle.net/10026.1/17715
dc.description.abstract

Oscillating Water Column (OWC) devices are usually modelled as simple systems containing ideal, dry air. However, high humidity levels are likely to occur in a prototype device open to the sea, particularly in warm climates such as prevail in the lower latitudes. In this paper, a real gas model is implemented to take into account humidity variations inside an OWC chamber. Using a modified adiabatic index, theoretical expressions are derived for the thermodynamic state variables including enthalpy, entropy and specific heat. The model is validated against experimental data, and shown to provide better agreement than obtained using the ideal gas assumption. By calculating real air flow in an OWC it is shown that the mechanical efficiency reduces and the flow phase alters with respect to the ideal gas case. Accurate prediction of efficiency is essential for the optimal design and management of OWC wave energy converters.

dc.format.extent709-717
dc.languageen
dc.language.isoen
dc.publisherElsevier BV
dc.subjectBioengineering
dc.titleThermodynamics of an OWC containing real gas
dc.typejournal-article
dc.typeJournal Article
plymouth.volume135
plymouth.publication-statusPublished
plymouth.journalEnergy
dc.identifier.doi10.1016/j.energy.2017.06.164
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Engineering, Computing and Mathematics
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1016/j.energy.2017.06.164
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review


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