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Un cryorefroidisseur à tube à pulsation monoétagé de type Gifford-McMahon fonctionnant à 10,6 K.

A single-stage GM-type pulse tube cryocooler operating at 10.6 K.

Auteurs : GAN Z. H., DONG W. Q., QIU L. M., et al.

Type d'article : Article

Résumé

In order to explore the lowest attainable refrigeration temperature and improve cooling performance at temperatures around 20 K for a single-stage G-M type pulse tube cryocooler (PTC), numerical and experimental studies were performed. The National Institute of Standards and Technology (NIST) numerical model known as REGEN was applied to the simulation of a G-M type PTC for the first time. Based on the calculation results, a single-stage G-M type PTC was designed, fabricated and tested. The performance improvement of the regenerator in the temperature range of 10-80 K was investigated. The calculations predicted a lowest temperature of 10 K. A lowest temperature of 10.6 K was achieved experimentally with an input power of 7.5 kW, which is the lowest temperature ever achieved by a single-stage PTC. Furthermore, the cryocooler can provide a cooling power of 20W at 20.6 K and 39.5 W at 30 K, respectively. [Reprinted with permission from Elsevier. Copyright, 2008].

Détails

  • Titre original : A single-stage GM-type pulse tube cryocooler operating at 10.6 K.
  • Identifiant de la fiche : 2009-1867
  • Langues : Anglais
  • Source : Cryogenics - vol. 49 - n. 5
  • Date d'édition : 05/2009
  • DOI : http://dx.doi.org/10.1016/j.cryogenics.2009.01.004

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