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Quantification of the effect of hysteresis on the magnetocaloric effect in first order Gd5Si2Ge2.

Number: 1658

Author(s) : MOOS L. von, BAHL C. R. H., NIELSEN K. K., et al.

Summary

We quantify the effect of hysteresis on the performance of the magnetocaloric first order material GdR5RSiR2RGeR2R
undergoing an ideal active magnetic regenerator (AMR) cycle. The material is carefully characterized through magnetometry (VSM) and calorimetry (DSC) in order to enable an accurate model description of the phase transition at varying magnetic fields and temperatures. Using detailed experimental property data, a Preisach type model is used to describe the thermal hysteresis effects and simulate the material under realistic working conditions. We find that the magnetocaloric effect is limited by a significant fraction of the thermal hysteresis.

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Pages: 2 p.

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Details

  • Original title: Quantification of the effect of hysteresis on the magnetocaloric effect in first order Gd5Si2Ge2.
  • Record ID : 30013115
  • Languages: English
  • Source: 6th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VI). Proceedings: Victoria, Canada, September 7-10, 2014.
  • Publication date: 2014/09/07

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