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Développement d'un compresseur biétagé au R744 pour un système commercial de chauffage d'eau à pompe à chaleur.

Development of R744 two stage compressor for commercial heat pump water heater.

Numéro : pap. 1162

Auteurs : HOTTA Y., KIMATA Y., SATO H., et al.

Résumé

A novel CO2 two stage compressor has been developed. The developed compressor equips one rotary and one scroll compression chambers as first and second stage respectively. For efficiency improvement, authors measured the cylinder pressure in each stage and conducted loss classification in the compressor. By adopting appropriate compression type in each stage, and by decreasing critical loss found by measuring the pressure, it resulted in 6 and 10% improvement of heating capacity and COP respectively on rated condition, and 25% and over 50% improvement on deep-frozen condition compared with conventional single stage compressor. The developed compressor is installed on our newly developed commercial heat pump water heater.

Documents disponibles

Format PDF

Pages : 9 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 : Development of R744 two stage compressor for commercial heat pump water heater.
  • Identifiant de la fiche : 30006997
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 21st International Compressor Engineering Conference at Purdue.
  • Date d'édition : 16/07/2012

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