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High-frequency magnetocaloric modules with heat gates operating with the Peltier effect / Peter W. Egolf in International journal of refrigeration, Vol. 37 N° 1 (Janvier 2014) 

Public ISBD [article]  in International journal of refrigeration > Vol. 37 N° 1 (Janvier 2014) . - pp. 176-184 Titre : High-frequency magnetocaloric modules with heat gates operating with the Peltier effect Titre original : Modules magnétocaloriques à haute fréquence munis d'interrupteurs thermiques fonctionnant grâce à l'effet Peltier Type de document : texte imprimé Auteurs : Peter W. Egolf, Auteur ; L. Gravier, Auteur ; T. Francfort, Auteur Année de publication : 2014 Article en page(s) : pp. 176-184 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Magnetocalorics;  magnetic  refrigeration;  thermal  switches;  Peltier  elements;  seebeck  effect;  high-frequency Résumé : 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. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002624 [article] High-frequency magnetocaloric modules with heat gates operating with the Peltier effect = Modules magnétocaloriques à haute fréquence munis d'interrupteurs thermiques fonctionnant grâce à l'effet Peltier [texte imprimé] / Peter W. Egolf, Auteur ; L. Gravier, Auteur ; T. Francfort, Auteur . - 2014 . - pp. 176-184. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 37 N° 1 (Janvier 2014) . - pp. 176-184 Mots-clés : Magnetocalorics;  magnetic  refrigeration;  thermal  switches;  Peltier  elements;  seebeck  effect;  high-frequency Résumé : 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. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002624