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HELIUM LIQUEFACTION BY A GIFFORD-MCMAHON CYCLE CRYOCOOLER.

Author(s) : NAGAO M.

Type of article: Article

Summary

THIS PAPER DESCRIBES THE PRINCIPAL DESIGN FEATURES AND PERFORMANCE TEST RESULTS OF A THREE-STAGE GIFFORD-MCMAHON CYCLE CRYOCOOLER WITH WHICH THE AUTHORS HAVE ACHIEVED A NO-LOAD TEMPERATURE OF 3.3 K AND SUCCEEDED IN HELIUM LIQUEFACTION. THE KEY POINT OF THE SUCCESS IS THE SELECTION OF GADOLINIUM(X)ERBIUM(1-X)RHODIUM COMPOUNDS AS A REGENERATOR MATERIAL. THE REFRIGERATION CAPACITY WAS 20 MILLIWATT AT 4.2 K AND THE HELIUM LIQUEFACTION RATE WAS 10,000 MM3/H. THIS IS THE FIRST TIME THAT A GIFFORD-MCMAHON CYCLE CRYOCOOLER HAS LIQUEFIED HELIUM WITHOUT PRECOOLING.

Details

  • Original title: HELIUM LIQUEFACTION BY A GIFFORD-MCMAHON CYCLE CRYOCOOLER.
  • Record ID : 1991-2359
  • Languages: English
  • Source: Adv. cryog. Eng. - vol. 35 B
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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