A test stand to measure the magnetization work of magnetocaloric materials

A test stand to measure the magnetization work of magnetocaloric materials

Author Ferreira, Lucas Diego Rodrigues Google Scholar
Bessa, Carlos Vinícius Xavier Google Scholar
Gama, Sergio Autor UNIFESP Google Scholar
Horikawa, Oswaldo Google Scholar
Abstract The experimental apparatus presented in this study is capable of precisely measuring the magnetic force produced by a permanent magnets assembly over a magnetocaluric material at a regulated temperature. This data is then used to calculate the magnetization work necessary to bring the given magnetocaloric sample from zero field up to a 1 T field region over a given magnetic field gradient, for a range of temperatures around the Curie temperature of the material. This magnetization work can be used to compare different magnctocaloric materials, as well as to validate analytic methods to estimate the magnetization work of real applications in magnetic refrigeration, and thermomagnetic motors. Construction details of the test stand are presented as well as results for Gadolinium (Gd) and Manganese Arsenide (MnAs).
Keywords Experimental Test Stand
Magnetic Systems
Permanent Magnets Assembly
Material Comparisons
Thermomagnetic Motors
Magnetic Refrigeration
Language English
Sponsor Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2012/09486-0]
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
Grant number FAPESP: 2012/09486-0
Date 2016
Published in 7th International Conference On Magnetic Refrigeration At Room Temperature. Paris, 2016.
ISSN 0151-1637 (Sherpa/Romeo, impact factor)
Publisher Revista De Saude Publica
Origin https://doi.org/10.18462/iir.thermag.2016.0059
Access rights Closed access
Type Conference paper
Web of Science ID WOS:000402542400003
URI http://repositorio.unifesp.br/handle/11600/49237

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