Partager

Document IIF

Turbocompresseurs de petite taille pour un fonctionnement sur une large plage avec des jeux radiaux importants pour un concept de pompe à chaleur bi-étagée.

Small-scale turbocompressors for wide-range operation with large tip-clearances for a two-stage heat pump concept.

Auteurs : JAVED A., ARPAGAUS C., BERTSCH S., et al.

Type d'article : Article, Article de la RIF

Résumé

Two mechanically driven small-scale turbocompressors running on gas lubricated bearings have been theoretically designed for a 6.5?kW two-stage heat pump functioning under variable operating conditions. The novelty in the heat pump system lies in the application of oil-free turbocompressor technology and the introduction of unused heat from various secondary heat sources. Managing the heat pump operational deviations with the secondary heat is difficult for the turbocompressors. The turbocompressors can potentially exceed their operating range defined by the surge, choke and maximum rotational speed margins. Furthermore, regulating the tip-leakage flow caused by large tip-clearances in small-scale turbomachinery is challenging. This paper will guide the readers through different stages of the design process of small-scale turbocompressors subjected to different operational and design constraints. The design review and the presented methodology will help the designers make suitable parameter selections for achieving high efficiency and wide compressor operating range.

Documents disponibles

Format PDF

Pages : 285-302

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 : Small-scale turbocompressors for wide-range operation with large tip-clearances for a two-stage heat pump concept.
  • Identifiant de la fiche : 30018589
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 69
  • Date d'édition : 09/2016

Liens


Voir d'autres articles du même numéro (37)
Voir la source

Indexation