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Recondensation d'hélium utilisant un cryorefroidisseur à tube à pulsation de 4 K.

Efficient helium recondensing using a 4 K pulse tube cryocooler.

Auteurs : WANG C.

Type d'article : Article

Résumé

This paper introduces helium recondensing in a 4000 l dewar using a 4 K pulse tube cryocooler at Amundsen-Scott research station atthe South Pole. The helium dewar has a normal boil-off rate of 14 l/day. Two features of cooling the dewar neck by helium vapour andprecooling helium gas to be liquefied ensured high efficiency of the pulse tube recondenser in this application. The liquefier/recondenser has being successfully operating in the dewar at South Pole station since February 2005. It not only maintains zero boil-off of the dewar, but also liquefies helium gas supplied from outside of the dewar with a rate around 2.7 l/day. [Reprinted with permission from Elsevier. Copyright, 2005].

Détails

  • Titre original : Efficient helium recondensing using a 4 K pulse tube cryocooler.
  • Identifiant de la fiche : 2006-2750
  • Langues : Anglais
  • Source : Cryogenics - vol. 45 - n. 12
  • Date d'édition : 12/2005

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