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A dynamic 1-D model for a reciprocating active magnetic regenerator: influence of the main working parameters.

Author(s) : TAGLIAFICO G., SCARPA F., CANEPA F.

Type of article: Article, IJR article

Summary

Active magnetic regeneration (AMR) is a configuration that allows magnetic refrigeration to be suitable also for room temperature applications. This work is intended to detect, by means of a 1-D numerical model, the influence on the regenerator performances of the working condition ambient temperature [T(CURIE) plus or minus 20 K] and of the operating parameters fluid mass flow rate (utilization factor 0.5-3.5) and cycle frequency (0.1-0.6 Hz). Simulations show that, tuning the fluid mass flow rate, a gadolinium AMR can reach a maximum cooling capacity of 130 W and a 40 W cooling power over a temperature span of 30 K. A COP of 5 can also be achieved with a temperature span of 30 K and a cooling power of 35 W. Frequency has a weak influence on the AMR's COP, while the ambient temperature is crucial. The system loses the 60% of cooling capacity if the ambient temperature is 20 K away from the material Curie temperature.

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Pages: pp. 286-293

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Details

  • Original title: A dynamic 1-D model for a reciprocating active magnetic regenerator: influence of the main working parameters.
  • Record ID : 2009-2373
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 33 - n. 2
  • Publication date: 2010/03

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