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Développement d'un compresseur pour une pompe à chaleur au CO2 avec un mécanisme rotatif unique.

Development of the compressor for a CO2 heat pump with a single rotary mechanism.

Auteurs : MAEYAMA H., YOKOYAMA T., NAKAO H.

Résumé

The authors have developed a new CO2 heat pump water-heater compressor with a single rotary mechanism. CO2 refrigerant has different characteristics when compared with refrigerants that have been used before. These characteristics include the operating pressure, the density of the refrigerant, and the speed of sound in the refrigerant. Therefore, during the development of the compressor, there were some issues such as retaining efficiency, oil exhalation amount control, and reliability in terms of prevention of wear and tear. To retain efficiency, we minimized the leakage path and optimized the amount of oil supplied to the compression chamber. To control the oil exhalation amount, the authors enlarged the gas flow path of the motor portion to decrease the speed of the gas flow. To improve reliability, we adopted a coating on the vane surface. Solving issues like these, we were able to commercialize our product.

Documents disponibles

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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 the compressor for a CO2 heat pump with a single rotary mechanism.
  • Identifiant de la fiche : 2007-2304
  • Langues : Anglais
  • Source : 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Date d'édition : 17/07/2006

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