High-frequency magnetocaloric modules with heat gates operating with the Peltier effect
Egolf, Peter W.; Gravier, Laurent; Francfort, Thibault; Pawlowski, Anne Gabrielle; Courret, Gilles; Croci, Mirko
2014
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Abstract

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.

Details

Title High-frequency magnetocaloric modules with heat gates operating with the Peltier effect
Translated Title Modules magnétocaloriques à haute fréquence munis d’interrupteurs thermiques fonctionnant grâce à l’effet Peltier
Author(s) 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)
Date 2014-01
Published in International Journal of Refrigeration
Numeration (vol. no.) 2014, vol. 37, pp. 176-184
Pagination 9 p.
DOI 10.1016/j.ijrefrig.2013.09.028
ISSN 0140-7007
Keywords magnétocalorique ; froid magnétique ; interrupteurs thermiques ; haute fréquence ; effet Seebeck ; éléments de l'effet Peltier

magnetocalorics ; magnetic refrigeration ; thermal switches ; Peltier elements ; Seebeck effect ; high-frequency
Article Type scientifique
Faculty Ingénierie et Architecture
School HEIG-VD
Institute COMATEC - Institut de Conception, Matériaux, Emballage & Conditionnement
IGT - Institut de Génie Thermique
Record Appears in Scientific Articles
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