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GENERAL ANALYSIS OF MAGNETIC REFRIGERATION AND ITS OPTIMIZATION USING A NEW CONCEPT: MAXIMIZATION OF REFRIGERANT CAPACITY.

Author(s) : WOOD M. E., POTTER W. H.

Type of article: Article

Summary

A GENERAL APPROACH IS PRESENTED BASED ON THE CONCEPT THAT THE MOST APPROPRIATE AND MEANINGFUL MEASURE OF THE LEVEL OF REFRIGERATION IS THE PRODUCT OF ENTROPY ABSORBED BY THE REFRIGERANT AND THE TEMPERATURE SPAN OVER WHICH IT IS PUMPED. RESULTS ARE PRESENTED OF MEAN-FIELD CALCULATIONS, THE REFRIGERANT CAPACITY,FOR FERROMAGNETIC, PARAMAGNETIC, AND ANTIFERROMAGNETIC REFRIGERANTS AS A FUNCTION OF THE VARIOUS OPERATING PARAMETERS. SEVERAL PROTOTYPE MAGNETIC REFRIGERATORS HAVE BEEN ANALYSED AND ALTERNATIVES ARE SUGGESTED. IT IS CONCLUDED THAT TWO OF THE GREATEST NEEDS FOR FURTHER DEVELOPMENT OF LOW TEMPERATURE MAGNETIC REFRIGERATION ARE FINDING AND CHARACTERIZING FERROMAGNETIC REFRIGERANTS WITH APPROPRIATE CURIE TEMPERATURES AND THE ANALYSIS AND DEVELOPMENT OF REGENERATIVE MAGNETICCYCLES USING HELIUM GAS AS A HEAT TRANSFER MEDIUM.

Details

  • Original title: GENERAL ANALYSIS OF MAGNETIC REFRIGERATION AND ITS OPTIMIZATION USING A NEW CONCEPT: MAXIMIZATION OF REFRIGERANT CAPACITY.
  • Record ID : 1986-1744
  • Languages: English
  • Source: Cryogenics - vol. 25 - n. 12
  • Publication date: 1985

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