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

Author(s) : PETIT M., AVENAS Y., KEDOUS-LEBOUC A., et al.

Type of article: Article, IJR article

Summary

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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Pages: 201-208

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Details

  • Original title: Experimental study of a static system based on a magneto-thermal coupling in ferrofluids.
  • Record ID : 30009897
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 37 - n. 1
  • Publication date: 2014/01

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