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Optimization of a magnetic refrigerator at room temperature for air cooling systems.

Author(s) : KAWANAMI T., CHIBA K., SAKURAI K., et al.

Type of article: Article, IJR article

Summary

The purpose of this study is to understand the optimum operating condition of magnetic refrigerator at room temperature for direct air-cooling. The basic components of the target system are a magnetic circuit including two permanent magnets, a test section, an air blower, and an associated instrumentation. The test section consists of 10 test cells which enclose gadolinium chips as a magnetic working substance in a prescribed packing rate. In order to change the applied magnetic field from 0 to 0.9 T, the magnetic circuit is installed on an electric slider which generates reciprocating motion. The system performances are widely investigated both experimentally and analytically for the variety of conditions such as a volumetric flow rate of air, a packing length of magnetic working substance, and a heat exchange cycle. The results reveal that the present magnetic refrigerator has a maximum value of the cooling rate in an appropriate operating condition.

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Pages: 1294-1301

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Details

  • Original title: Optimization of a magnetic refrigerator at room temperature for air cooling systems.
  • Record ID : 2006-2912
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 8
  • Publication date: 2006/12

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