Conception de turbocompresseurs sans huile à destination d’une pompe à chaleur industrielle bi-étagée sous régime de fonctionnement variable.

Design of oil-free turbocompressors for a two-stage industrial heat pump under variable operating conditions.

Numéro : pap.1088

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

Résumé

A pair of mechanically driven small-scale turbocompressors running on gas lubricated bearings have been designed for a two-stage heat pump application functioning under variable operating conditions. Novelty in the present two-stage heat pump system lies in the application of oil-free turbocompressor technology and the introduction of unused secondary heat from various sources. Managing the operational deviations and the secondary heat during off-design heat pump operation is challenging for the turbocompressors. The turbocompressors can potentially exceed their operating range defined by the surge and choke margins, and the maximum rotational speed limit set by the structural and rotordynamic considerations. A wide operating range is, therefore, a prerequisite design condition for the turbocompressors. The present paper will guide the readers through different stages of the design process of such turbocompressors subjected to various operational and design constraints. Moreover, a stochastic evaluation on the influence of variable operating conditions on the heat pump off-design performance will be detailed.

Documents disponibles

Format PDF

Pages : 10 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

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

Détails

  • Titre original : Design of oil-free turbocompressors for a two-stage industrial heat pump under variable operating conditions.
  • Identifiant de la fiche : 30019593
  • Langues : Anglais
  • Source : 2016 Purdue Conferences. 23rd International Compressor Engineering Conference at Purdue.
  • Date d'édition : 11/07/2016

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