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Document IIF

Étude expérimentale d'une pompe statique fondée sur le couplage magnéto-thermique au sein des ferrofluides.

Experimental study of a static system based on a magneto-thermal coupling in ferrofluids.

Auteurs : PETIT M., AVENAS Y., KEDOUS-LEBOUC A., et al.

Type d'article : Article, Article de la RIF

Résumé

Liquid cooling of electronic devices requires generally a mechanical pump which reduces the performance of the system and its reliability. It has already been shown that ferrofluids with low Curie temperature are able to create a liquid flow without any mechanical part. In fact a pressure gradient can be obtained when subjecting this ferrofluids to both a temperature gradient and a magnetic field. In this paper a novel experimental setup is proposed. It is thermally and magnetically instrumented to achieve a precise analysis of the local behavior of the ferrofluids. A MnZn based ferrofluid was investigated on steady and transient states. The results confirm that a hydrostatic pressure can be successfully created. The behavior of the ferrofluid is analyzed considering a homogeneous applied magnetic field or not. A pressure drop is also highlighted and discussed in terms of temperature gradient evolution and magneto-convection in the ferrofluid.

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Format PDF

Pages : 201-208

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Détails

  • Titre original : Experimental study of a static system based on a magneto-thermal coupling in ferrofluids.
  • Identifiant de la fiche : 30009897
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 37 - n. 1
  • Date d'édition : 01/2014

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