Partager

Document IIF

Etude du processus de refroidissement d'une soupape cryogénique dans de l'azote liquide.

Study of the cool-down process of a cryogenic valve in liquid nitrogen.

Auteurs : JIN T., XIA Y. L., TANG K., et al.

Résumé

In order to guide producing practice, numerical simulation of dynamic temperature profile is conducted on a cryogenic valve emerged in liquid nitrogen, which is a typical working status for its cryogenic test. Three calculation models of different statuses, based on revised experiential equations for boiling heat transfer, have been set up. Systematic simulations have been carried out to predict cool-down process of cryogenic valves, focusing on the cool-down time and dynamic temperature profile. Based on the simulation results, an insulation layer is proposed to be attached to the valve stem, avoiding the occurrence of freezing at the top of packing gland during cryogenic test.

Documents disponibles

Format PDF

Pages : ICR07-A2-410

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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

Détails

  • Titre original : Study of the cool-down process of a cryogenic valve in liquid nitrogen.
  • Identifiant de la fiche : 2007-2419
  • Langues : Anglais
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

Liens


Voir d'autres communications du même compte rendu (839)
Voir le compte rendu de la conférence

Indexation