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Document IIF

Des échangeurs de chaleur compacts pour les systèmes mobiles fonctionnant au CO2.

Compact heat exchangers for mobile CO2 systems.

Auteurs : HAFNER A.

Résumé

With all its advantages, the natural refrigerant carbon dioxide (CO2) offers new possibilities for efficient heating and cooling in different climates. In reversible air conditioning systems, the capacity and efficiency in cooling mode are seen to be the most important aspects. A prototype CO2 system with a separator, refrigerant pump and a single pass heat exchanger was tested under various conditions. Compared with a baseline heat exchanger of equal size, the use of an external operated pump to circulate the refrigerant through the heat exchanger, increased the cooling capacity at equal pressure levels by up to 14%. At equal cooling capacities the COP increased by up to 23%. Air-side temperature distribution was more uniform when the system was operated in this manner.

Documents disponibles

Format PDF

Pages : 2002-5

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 : Compact heat exchangers for mobile CO2 systems.
  • Identifiant de la fiche : 2003-2589
  • Langues : Anglais
  • Date d'édition : 17/09/2002
  • Source : Source : Proc. 5th IIR-Gustav Lorentzen Conf. nat. Working Fluids, Guangzhou/ C. R. Conf. Guangzhou, IIF
    2002-5; sess. 2; pap. 27; 224-231; fig.; 6 ref.

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