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Influences of the stored water effect, thermal dispersion effect, and non-adiabatic condition on the performance of an active magnetic regenerator.

Author(s) : GAO Q., YU B. F., YANG D. X., et al.

Summary

Active magnetic regenerator, AMR, is a key component in the room temperature magnetic refrigerator, whose performance prediction is significant to the optimum design of the magnetic refrigeration system. In this paper, the heat transfer theory of porous media is incorporated in the basic model of AMR, and a relatively complete model of AMR is developed. The new terms added are analyzed quantitatively. The simulation results indicate that the effect of stored water has a great influence on the temperature of AMR. The effect of stored water may decrease the changing rate of the temperature and arouse a shift of the flow rate with maximal capacity. Combined the effect of heat transfer between the solid and the fluid phase, about 75% degradation of the temperature change happened during the magnetization process. Furthermore, the existence of the thermal dispersion could result in a tiny decrease of the refrigeration capacity.

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Pages: ICR07-B2-134

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Details

  • Original title: Influences of the stored water effect, thermal dispersion effect, and non-adiabatic condition on the performance of an active magnetic regenerator.
  • Record ID : 2008-0205
  • Languages: English
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

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