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Étude expérimentale d'un éjecteur à tuyère motrice à triple passage dans une petite pompe à chaleur au R744.

Experimental study of a triple-passage motive nozzle ejector in a small R744 heat pump.

Numéro : pap. n. 177

Auteurs : BANASIAK K., HAFNER A., EIKEVIK T. M.

Résumé

An experimental investigation of a small-scale R744 heat pump equipped with a triple-passage motive nozzle ejector was performed. Different supply configurations of the motive nozzle channels were examined, for a given geometry of the mixing section and the diffuser. The tests were performed for two independent stages, distinguished according to the conditions at the suction nozzle inlet: floating quality/superheat stage and constant superheat stage. The tests proved that both the ejector efficiency and the overall system performance (COP) were notably dependent on the motive nozzle supply strategy. Thus, for the proposed design of the ejector, the motive nozzle feeding management may be considered one of the potential control parameters for optimization of the system operation.

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Format PDF

Pages : 8 p.

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  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Experimental study of a triple-passage motive nozzle ejector in a small R744 heat pump.
  • Identifiant de la fiche : 30004319
  • Langues : Anglais
  • Source : 10th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2012). Proceedings. Delft, The Netherlands, June 25-27, 2012.
  • Date d'édition : 25/06/2012

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