High-frequency magnetocaloric modules with heat gates operating with the Peltier effect

Egolf, Peter W. (School of Management and Engineering Vaud, HES-SO // University of Applied Sciences Western Switzerland) ; Gravier, Laurent (School of Management and Engineering Vaud, HES-SO // University of Applied Sciences Western Switzerland) ; Francfort, Thibault (School of Management and Engineering Vaud, HES-SO // University of Applied Sciences Western Switzerland) ; Pawlowski, Anne Gabrielle (School of Management and Engineering Vaud, HES-SO // University of Applied Sciences Western Switzerland) ; Courret, Gilles (School of Management and Engineering Vaud, HES-SO // University of Applied Sciences Western Switzerland) ; Croci, Mirko (School of Management and Engineering Vaud, HES-SO // University of Applied Sciences Western Switzerland)

Magnetic heat pumps, refrigerators and energy conversion prototypes, with an operation based on the magnetocaloric effect, usually show a restriction in their frequency of operation to a few Hertz. In 2010 it was proposed to apply thermal switches to overcome this barrier. In this article thermal switches built with Ni-nanowire Peltier elements are presented and the performance of such elements is discussed on a theoretical and experimental basis. Finally an approximate estimate of the performance of a magnetic refrigerator of the types built up to present is compared to that of a magnetic refrigerator applying nanowire thermal switches.


Keywords:
Translated Title:
Modules magnétocaloriques à haute fréquence munis d’interrupteurs thermiques fonctionnant grâce à l’effet Peltier
Article Type:
scientifique
Faculty:
Ingénierie et Architecture
School:
HEIG-VD
Institute:
COMATEC - Institut de Conception, Matériaux, Emballage & Conditionnement
IGT - Institut de Génie Thermique
Date:
2014-01
Pagination:
9 p.
Published in:
International Journal of Refrigeration
Numeration (vol. no.):
2014, vol. 37, pp. 176-184
DOI:
ISSN:
0140-7007
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2021-01-29, last modified 2021-02-12

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