60618 20200221144244.0 doi 10.1016/j.ijrefrig.2015.10.006 sideral 93455 ART-2016-93455 eng (orcid)0000-0003-0698-1762 Velázquez, D. Universidad de Zaragoza A comprehensive study of a versatile magnetic refrigeration demonstrator 2016 Access copy available to the general public Unrestricted A versatile room temperature reciprocating magnetic refrigeration demonstrator has been designed, built and tested in order to evaluate the influence of different running parameters and to check suitable magnetocaloric materials for cooling at room temperature. A comprehensive study has been done with Gd spheres of 0.2-0.4 mm diameter arranged as a double regenerator with 15 g each. A Halbach Nd2e14B permanent magnet with a slot of 10 mm width has been used to generate the magnetic field with a maximum value of 1.4 T. The heat transfer fluid is a mixture of water and ethylene glycol in a 75-25 percentage. The demonstrator achieves a maximum no-load temperature span close to 20 K, with a regeneration ratio of ¿ = 4.1, and a maximum cooling power Qc=6 W at zero temperature span. COP values have been shown and different thermodynamic AMR cycles have been studied looking for the best parameters. info:eu-repo/grantAgreement/ES/MINECO/MAT2013-44063-R info:eu-repo/grantAgreement/ES/DGA/E100 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.779 2016 THERMODYNAMICS 12 / 58 = 0.207 2016 Q1 T1 ENGINEERING, MECHANICAL 22 / 130 = 0.169 2016 Q1 T1 1.371 2016 Mechanical Engineering 2016 Q1 Building and Construction 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0003-0533-2998 Estepa, C. (orcid)0000-0003-3567-7030 Palacios, E. Universidad de Zaragoza (orcid)0000-0003-2962-9251 Burriel, R. Universidad de Zaragoza 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 63 (2016), 14-24 Int. j. refrig. INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID 0140-7007 6916147 http://zaguan.unizar.es/record/60618/files/texto_completo.pdf Postprint 91928 http://zaguan.unizar.es/record/60618/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:60618 articulos driver 2020-02-21-13:23:39 ARTICLE