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dc.contributor.authorSolé, Aran
dc.contributor.authorFalcoz, Quentin
dc.contributor.authorCabeza, Luisa F.
dc.contributor.authorNeveu, Pierre
dc.date.accessioned2018-02-23T11:37:19Z
dc.date.available2020-12-31T23:15:29Z
dc.date.issued2018
dc.identifier.issn0960-1481
dc.identifier.urihttp://hdl.handle.net/10459.1/62702
dc.description.abstractIn the present study, geometry optimization of a phase change material (PCM) heat storage system is presented. The existing PCM-fins heat exchanger system works at the back side of a solar receiver in order to minimize the effect of the solar radiation fluctuations inside the cavity. As initially designed, the system does not accomplish the expected design purposes and thus optimization is needed. Optimization is usually time-consuming and some algorithms need a starting point, therefore one suitable method is geometrical optimization which aims to find the optimal shape of a system for a given criteria and providing a rough optimal geometry. Here, constructal theory, 'point to volume', is applied to find the optimum shape factor of the elemental volume of the presented PCM-heat exchanger. With this methodology, an optimum ratio of the PCM and fin width and length is found and beyond that the method is extended to 'surface to volume' problem. Results have been numerically validated using a CFD software and demonstrate that it gives a very good approximation of the real optimum which can be used as initial configuration for further optimization through CFD simulation or other optimization methods that require a starting point.
dc.description.sponsorshipThe author Aran Solé would like to thank the Societat Economica Barcelonesa Amics del Pais (SEBAP) for the funds that made possible her research stay. The authors would like to thank Jean-Marie Mancaux for his help and Jinqiu Shen for her contribution in the work. The authors would like to thank the Catalan Government for the quality accreditation given to their research group GREA (2014 SGR 123). GREA is certified agent TECNIO in the category of technology developers from the Government of Catalonia. The work is partially funded by the Spanish government (ENE2015-64117-C5-1-R (MINECO/FEDER)). The research leading to these results has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 657466 (INPATH-TES). Aran Solé would like to thank Ministerio de Economía y Competitividad de España for Grant Juan de la Cierva, FJCI-2015-440 25741.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherElsevier
dc.relationMINECO/PN2013-2016/ENE2015-64117-C5-1-R
dc.relation.isformatofVersió postprint del document publicat a https://doi.org/10.1016/j.renene.2018.02.008
dc.relation.ispartofRenewable Energy, 2018, vol. 123, p. 227-235
dc.rightscc-by-nc-nd (c) Elsevier, 2018
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectThermal energy storage (TES)
dc.subjectConcentrated Solar Power plant (CSP)
dc.subjectPhase Change Material (PCM)
dc.subjectConstructal
dc.subjectExergy
dc.subjectOptimization
dc.titleGeometry optimization of a heat storage system for concentrated solar power plants (CSP)
dc.typeinfo:eu-repo/semantics/article
dc.date.updated2018-02-23T11:37:21Z
dc.identifier.idgrec026678
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.identifier.doihttps://doi.org/10.1016/j.renene.2018.02.008
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/657466/EU/INPATH-TES


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