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A test stand to measure the magnetization work of magnetocaloric materials

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Date
2016
Author
Ferreira, Lucas Diego Rodrigues
Bessa, Carlos Vinícius Xavier
Gama, Sergio [UNIFESP]
Horikawa, Oswaldo
Type
Trabalho apresentado em evento
ISSN
0151-1637
Is part of
7th International Conference On Magnetic Refrigeration At Room Temperature
DOI
10.18462/iir.thermag.2016.0059
Metadata
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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).
Citation
7th International Conference On Magnetic Refrigeration At Room Temperature. Paris, 2016.
Keywords
Experimental Test Stand
Magnetic Systems
Permanent Magnets Assembly
Material Comparisons
Thermomagnetic Motors
Magnetic Refrigeration
Sponsorship
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2012/09486-0]
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
URI
http://repositorio.unifesp.br/handle/11600/49237
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  • ICAQF - Outras produções [113]

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