Looking for Energy Losses of a Rotary Permanent Magnet Magnetic Refrigerator to Optimize Its Performances
Ver/ Abrir
Impacto
Scholar |
Otros documentos de la autoría: Maiorino, Angelo; Mauro, Antongiulio; Del Duca, Manuel Gesù; Mota-Babiloni, Adrián; APREA, CIRO
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Looking for Energy Losses of a Rotary Permanent Magnet Magnetic Refrigerator to Optimize Its PerformancesAutoría
Fecha de publicación
2019-11-19Editor
MDPICita bibliográfica
MAIORINO, 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.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.mdpi.com/1996-1073/12/22/4388Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
: 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. ... [+]
: 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. [-]
Publicado en
Energies (2019), v. 12, n. 22Derechos de acceso
info:eu-repo/semantics/openAccess
Aparece en las colecciones
- ESID_Articles [477]
El ítem tiene asociados los siguientes ficheros de licencia: