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Étude expérimentale et numérique sur les caractéristiques d’un cryorefroidisseur à tube à pulsation de type Stirling 4 K couplé au gaz.

Numerical and experimental study on the characteristics of 4 K gas-coupled Stirling-type pulse tube cryocooler.

Auteurs : CHEN L., WU X., LIU X., et al.

Type d'article : Article, Article de la RIF

Résumé

A novel gas-coupled Stirling-type pulse tube cryocooler (SPTC), coupling with a colder-stage at the cold head of pre-cooling stage, has been presented, which features extremely compact structure. The gas-coupled characteristics, such as interaction of phase distribution, mass flow distribution and available energy regenerator loss, have been numerical and experimental studied. A negligible phase interaction is found between the two gas-coupled stages, which means the phase of each stage can be optimized individually. The colder-stage regenerator material diameter has a significant effect while its inertance tube size has a weak effect on mass flow distribution. The sphere-type colder-stage regenerator has a different available energy loss mechanism with the mesh-type regenerator of pre-cooling stage. At present, the prototype achieves a no-load temperature of 4.94?K. A cooling power of 12.4?mW/6?K can be achieved with an input power is 270?W and a precooling power of 12.43?W/77?K.

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Format PDF

Pages : 204-210

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  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Numerical and experimental study on the characteristics of 4 K gas-coupled Stirling-type pulse tube cryocooler.
  • Identifiant de la fiche : 30023522
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 88
  • Date d'édition : 04/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2018.01.010

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