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Mélange zéotropique ternaire avec addition de CO2 pour les applications de pompes à chaleur au R22.

Ternary zeotropic mixture with CO2 component for R22 heat pump application.

Auteurs : MACZEK K., MÜLLER J., WOJTAS K., DOMANSKI P. A.

Résumé

The paper presents results of a simulation and laboratory study of the performance of a zeotropic mixture R744-R32-R134a in a water-heating heat pump. The goal of the research was to obtain operating parameters comparable to a system charged with R22. The performance of R22 served as a reference for the ternary mixture studied. A semi-theoretical simulation model was used first to examine the influence of R744 properties on the mixture performance and to determine the optimum mixture composition. The formulated mixture, R744-R32-R134a (7-31-62) was then tested in a laboratory. Compared with the performance of R22, the COP of R744-R32-R134a was better by 9.5% at a 21% increase in volumetric capacity.

Détails

  • Titre original : Ternary zeotropic mixture with CO2 component for R22 heat pump application.
  • Identifiant de la fiche : 1999-3408
  • Langues : Anglais
  • Source : CLIMA 2000, Brussels 1997, August 30 to September 2, Congress Palace.
  • Date d'édition : 08/1997
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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