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Un cryo-refroidisseur à tube à pulsation biétagé et modifié utilisant une double entrée et un régénérateur à grilles multiples.

A modified two-stage pulse tube cryocooler utilizing double-inlet and multi-mesh regenerator.

Auteurs : ARABLU M., JAFARIAN A.

Type d'article : Article

Résumé

In this paper a thermally coupled Stirling-type two-stage pulse tube cryocoolers (TSPTC) is studied using a one-dimensional (1-D) CFD code. After validating the results of the simulations, effects of synchronous utilization of multi-mesh regenerator and double-inlet on the performance of the TSPTC are investigated. Results of simulations show that non-oscillating friction factors do not possess sufficient accuracy for the calculation of oscillating friction losses in non-porous media. Whereas, using the oscillating friction factor of non-porous media leads to sufficient accurate results. According to the results, using multi-mesh regenerator and double-inlet increases the COP and decreases the minimum attainable temperature of the system. It is observed that a minimum temperature of 18.2 K is attainable using optimum multi-mesh regenerator and double-inlet; whereas, for a simple TSPTC with a uniform mesh regenerator, a minimum temperature of 26.4 K is concluded

Détails

  • Titre original : A modified two-stage pulse tube cryocooler utilizing double-inlet and multi-mesh regenerator.
  • Identifiant de la fiche : 30009575
  • Langues : Anglais
  • Source : Cryogenics - vol. 58
  • Date d'édition : 12/2013
  • DOI : http://dx.doi.org/10.1016/j.cryogenics.2013.09.002

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