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Active magnetic regenerator (AMR) experimental test device.

Number: sect. 3

Author(s) : TUSEK J., KITANOVSKI A., FLISAR U., et al.

Summary

A new AMR experimental device has been designed, built and successfully tested. Its operation is based on the linear movement of the permanent magnet assembly over the static AMR. Two pistons serve for the counter fluid flow operation. The magnet assembly provides a magnetic field of 1.15 T (measured). Experiments have been performed for different kinds of regenerators at different operation conditions (mass flow rate and operation frequency) in order to obtain maximum temperature span (at zero load conditions) and cooling capacity at different temperature spans. In this paper, the results are presented for the AMR consisted of gadolinium (Gd) plates and voids with thickness of 0.25 mm. Maximum temperature span of 16 K was measured and 7 W of the cooling capacity was measured at 1 K of the temperature span. The second part of the paper regards the comparison between experimental and numerical results. The numerical results presented in the paper are based on the model developed by Tušek et al. (2011). The paper gives a discussion and presents some guidelines for the future research on magnetocaloric regenerators.

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Pages: 429-436

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Details

  • Original title: Active magnetic regenerator (AMR) experimental test device.
  • Record ID : 30005590
  • Languages: English
  • 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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