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Etude d'un cryorefroidisseur miniature à tube à pulsation pour application spatiale.

Study on miniature pulse tube cryocooler for space application.

Auteurs : LIANG J., ZHOU Y., ZHU W., et al.

Type d'article : Article

Résumé

Pulse tube refrigerator is a new type of mechanical cryocooler with the potential of long-term operation in space. Theoretical and experimental studies are currently on the way in the Cryogenic Laboratory of Chinese Academy of Sciences in order to develop a 85 K/250 mW class pulse tube cryocooler to be used to cool space-borne infrared devices. A theoretical model is established based on the analyses of the thermodynamic behaviour of gas parcels in oscillating flow regenerators. A test bench, including a hot-wire anemometer has been set up to investigate the flow resistance characteristics of regenerators with oscillating flow. The results of measurement are correlated and served for practical design. The Oxford type linear pressure wave generator with flexure bearings is also under development in CL/CAS.

Détails

  • Titre original : Study on miniature pulse tube cryocooler for space application.
  • Identifiant de la fiche : 2001-2643
  • Langues : Anglais
  • Source : Cryogenics - vol. 40 - n. 3
  • Date d'édition : 2000

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