000095870 001__ 95870 000095870 005__ 20210526094559.0 000095870 0247_ $$2doi$$a10.1063/1.5114702 000095870 0248_ $$2sideral$$a114820 000095870 037__ $$aART-2019-114820 000095870 041__ $$aeng 000095870 100__ $$0(orcid)0000-0002-2947-3448$$aBeltrán-López, Jesús Francisco$$uUniversidad de Zaragoza 000095870 245__ $$aDesign and optimization of a magnet for magnetocaloric refrigeration 000095870 260__ $$c2019 000095870 5060_ $$aAccess copy available to the general public$$fUnrestricted 000095870 5203_ $$aThe magnetic field source is the most expensive element of a magnetic refrigeration device. The design of an efficient magnet with high and low field regions, using reduced volumes of permanent magnets, is of paramount importance for the practical application of this new technology. A two-pole rotary magnet formed by sectors of oriented hard magnets and soft iron pieces is optimized in angular width and magnetization direction of each sector. A quadratic approximation is used for the optimization of the defining angles. This procedure provides the parameters that result in extreme values of a given functional F, defined as an efficiency variable of the working device. The procedure also gives the correlation between parameters and the relative importance of the deviations with respect to their mathematical optimal values. An optimized magnet has also been built, and the resulting calculated fields are compared with experimental measurements in the real system. 000095870 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/MAT2017-86019-R 000095870 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000095870 590__ $$a2.286$$b2019 000095870 591__ $$aPHYSICS, APPLIED$$b70 / 154 = 0.455$$c2019$$dQ2$$eT2 000095870 592__ $$a0.728$$b2019 000095870 593__ $$aPhysics and Astronomy (miscellaneous)$$c2019$$dQ2 000095870 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000095870 700__ $$0(orcid)0000-0003-3567-7030$$aPalacios, Elías$$uUniversidad de Zaragoza 000095870 700__ $$0(orcid)0000-0003-0698-1762$$aVelázquez, David 000095870 700__ $$0(orcid)0000-0003-2962-9251$$aBurriel, Ramón$$uUniversidad de Zaragoza 000095870 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada 000095870 773__ $$g126, 16 (2019), 164502 [7 pp.]$$pJ. appl. physi.$$tJournal of Applied Physics$$x0021-8979 000095870 8564_ $$s1129822$$uhttps://zaguan.unizar.es/record/95870/files/texto_completo.pdf$$yVersión publicada 000095870 8564_ $$s37646$$uhttps://zaguan.unizar.es/record/95870/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000095870 909CO $$ooai:zaguan.unizar.es:95870$$particulos$$pdriver 000095870 951__ $$a2021-05-26-09:32:11 000095870 980__ $$aARTICLE