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

Number: sect. 1

Author(s) : EGOLF P. W., GRAVIER L., FRANCFORT T., et al.

Summary

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.

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Pages: 61-72

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Details

  • Original title: High-frequency magnetocaloric modules with heat gates operating with Peltier effect.
  • Record ID : 30005454
  • Languages: English
  • Subject: Technology
  • Source: 5th International Conference on Magnetic Refrigeration at Room Temperature (Thermag V). Proceedings: Grenoble, France, September 17-20, 2012.
  • Publication date: 2012/09/17

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