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dc.contributor.authorMaiorino, Angelo
dc.contributor.authorMauro, Antongiulio
dc.contributor.authorDel Duca, Manuel Gesù
dc.contributor.authorMota-Babiloni, Adrián
dc.contributor.authorAPREA, CIRO
dc.date.accessioned2020-03-13T13:11:46Z
dc.date.available2020-03-13T13:11:46Z
dc.date.issued2019-11-19
dc.identifier.citationMAIORINO, Angelo; MAURO, Antongiulio; DEL DUCA, Manuel Gesù; MOTA-BABILONI, Adrian; APREA, Ciro (2020). Looking for Energy Losses of a Rotary Permanent Magnet Magnetic Refrigerator to Optimize Its Performances. Energies, v. 12, issue 22, p.ca_CA
dc.identifier.urihttp://hdl.handle.net/10234/187029
dc.description.abstract: In this paper, an extensive study on the energy losses of a magnetic refrigerator prototype developed at University of Salerno, named ‘8MAG’, is carried out with the aim to improve the performance of such a system. The design details of ‘8MAG’ evidences both mechanical and thermal losses, which are mainly attributed to the eddy currents generation into the support of the regenerators (magnetocaloric wheel) and the parasitic heat load of the rotary valve. The latter component is fundamental since it imparts the direction of the heat transfer fluid distribution through the regenerators and it serves as a drive shaft for the magnetic assembly. The energy losses concerning eddy currents and parasitic heat load are evaluated by two uncoupled models, which are validated by experimental data obtained with different operating conditions. Then, the achievable coefficient of performance (COP) improvements of ‘8MAG’ are estimated, showing that reducing eddy currents generation (by changing the material of the magnetocaloric wheel) and the parasitic heat load (enhancing the insulation of the rotary valve) can lead to increase the COP from 2.5 to 2.8 (+12.0%) and 3.0 (+20%), respectively, and to 3.3 (+32%), combining both improvements, with an hot source temperature of 22 ◦C and 2 K of temperature span.ca_CA
dc.format.extent21 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherMDPIca_CA
dc.relation.isPartOfEnergies (2019), v. 12, n. 22ca_CA
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-sa/4.0/*
dc.subjectMagnetic refrigerationca_CA
dc.subjectMagneto-caloric effectca_CA
dc.subjectCoefficient of performanceca_CA
dc.subjectEddy currentsca_CA
dc.subjectExperimentalca_CA
dc.subjectParasitic heat loadca_CA
dc.subjectModellingca_CA
dc.titleLooking for Energy Losses of a Rotary Permanent Magnet Magnetic Refrigerator to Optimize Its Performancesca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttps://doi.org/10.3390/en12224388
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttps://www.mdpi.com/1996-1073/12/22/4388ca_CA
dc.type.versioninfo:eu-repo/semantics/publishedVersionca_CA


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Atribución 4.0 Internacional
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