Etude sur un cryoréfrigérateur Stirling biétagé à tube à pulsations.
Investigation on a thermal-coupled two-stage Stirling-type pulse tube cryocooler.
Auteurs : YANG L.
Type d'article : Article
Résumé
Multi-stage Stirling-type pulse tube cryocoolers with high frequency (30-60 Hz) are one important direction in recent years. A two-stage Stirling-type pulse tube cryocooler with thermally coupled stages has been designed and established two years ago and some results have been published. In order to study the effect of first stage precooling temperature, related characteristics on performance are experimentally investigated. It shows that at high input power, when the precooling temperature is lower than 110 K, its effect on second stage temperature is quite small. There is also the evident effect of precooling temperature on pulse tube temperature distribution; this is for the first time that author notice the phenomenon. The mean working pressure is investigated and the 12.8 K lowest temperature with 500 W input power and 1.22 MPa average pressure have been gained, this is the lowest reported temperature for high frequency two-stage PTCS. Simulation has reflected upper mentioned typical features in experiments. [Reprinted with permission from Elsevier. Copyright, 2008].
Détails
- Titre original : Investigation on a thermal-coupled two-stage Stirling-type pulse tube cryocooler.
- Identifiant de la fiche : 2009-0500
- Langues : Anglais
- Source : Cryogenics - vol. 48 - n. 11-12
- Date d'édition : 11/2008
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