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Amélioration essentielle des cryorefroidisseurs Joule-Thomson aux températures de l’hélium liquide pour l’espace : efficacité, légèreté et grande puissance de refroidissement.

Essential improvement of the JT cryocooler working at liquid helium temperature for space: Efficient and lightweight.

Auteurs : CHEN Z., LIU S., SHA X., SHEN Y., YIN W., HUANG Z., DING L., JIANG Z., GAN Z., WU Y.

Type d'article : Article de la RIF

Résumé

Due to long lifetime, low level vibration and negligible electromagnetic interference, the Joule-Thomson (JT) cryocooler working at liquid helium temperature has been used in space. However, its cooling capacity and thermodynamic efficiency still need to be further improved under a certain mass limit, which is an essential improvement for space-efficient application of the JT cryocooler. Therefore, in this study, optimization design is carried out for a JT cryocooler working at liquid helium temperature. Based on the modification of Stirling cryocooler, pulse tube cryocooler and JT compressor, the developed JT cryocooler can provide a cooling capacity of 0.36 W at 4.18 K while the total input power and the total mass (without cryostat) are 1157 W and 26.8 kg, respectively. Compared with the literature research, it can be found that the developed JT cryocooler is suitable for space applications.

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Format PDF

Pages : 89-94

Disponible

  • Prix public

    20 €

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* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Essential improvement of the JT cryocooler working at liquid helium temperature for space: Efficient and lightweight.
  • Identifiant de la fiche : 30032818
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 168
  • Date d'édition : 12/2024
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2024.08.006

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