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Magnetic refrigeration investigated for air-conditioning applications.

Type of article: Article

Summary

The magnetocaloric effect is when the temperature of a material increases when placed in a magnetic field and decreases when that field is removed. If the material can be in the form of a porous bed, a cycle can be obtained in which fluid flowing through it exchanges heat with the material. By reversing the flow and producing or removing a magnetic field, a heat sink and heat source can be maintained at a suitable temperature difference to act as a refrigerator or air conditioner. The major problem lies in identifying a material which can form a suitable heat exchanger and is reasonably priced. Such systems have proved effective to date in cryogenic cooling and can show an efficiency improvement of up to 25% over a vapour compression system. D.W.H.

Details

  • Original title: Magnetic refrigeration investigated for air-conditioning applications.
  • Record ID : 1996-0669
  • Languages: English
  • Source: Tech Update - vol. 3 - n. 3
  • Publication date: 1994/07
  • Document available for consultation in the library of the IIR headquarters only.

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