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.
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
Date
2014-01
Published in
International Journal of Refrigeration
Volume
2014, vol. 37, pp. 176-184
Pagination
9 p.
ISSN
0140-7007
Article Type
scientifique
Faculty
Ingénierie et Architecture
School
HEIG-VD
Institute
COMATEC – Institut Conception mécanique et technologies des matériaux
iE - Institut des Energies
Note
Cette publication a été rédigée par un membre de l’institut COMATEC - Institut de Conception, Matériaux, Emballage & Conditionnement.
Cette publication a été rédigée par un membre de l’ancien institut IGT - Institut de Génie Thermique.