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Analyse basée sur une étude numérique et expérimentale des performances d'un turbo-détendeur cryogénique à grande vitesse lors du processus de refroidissement.

Performance analysis of high-speed cryogenic turbo-expander at cooling process based on numerical and experimental study.

Auteurs : KE C., XIONG L. Y., PENG N., DONG B., LI K., LI J., LIU L.

Type d'article : Article de la RIF

Résumé

In order to make a detailed understanding of the cryogenic turbo-expander off-design performance at cool-down procedure, an extensive experimental and numerical program have been carried out on a mixed and inward flow radial turbine. According to the design and cooling process condition, just like pressure at stator inlet or brake power of the turbo-expander, a series of CFD simulations were carried out in order to guide design and off-design iterations towards achieving a matched flow capacity for each situation. The analyses also include the study of the effect of different gas models on the CFD calculations. Through the results analysis it was concluded that the direct use of the Hepak database for the real gas properties in the CFD solver improve the prediction of the thermodynamic properties and so the performance of the turbo-expander. With experimental comparison, the cryogenic turbo-expander off-design performance at cooling process can be better known.

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Format PDF

Pages : 81-96

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 : Performance analysis of high-speed cryogenic turbo-expander at cooling process based on numerical and experimental study.
  • Identifiant de la fiche : 30028110
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 122
  • Date d'édition : 02/2021
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2020.09.016
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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