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Conséquences des fuites de frigorigènes sur la consommation énergétique d’une pompe à chaleur électrique pour le conditionnement d’air domestique.

Effect of refrigerant leakages on energy consumption of an electric heat pump for domestic air-conditioning.

Numéro : 2062

Auteurs : MAURO A. W., NAPOLI G., PELELLA F.

Résumé

Refrigerant leakages in stationary air-conditioning and heat pumps represent almost the 50% of the amount of F-gas emissions declared by European Commission. Reducing leakages becomes crucially important because they cause both a high environmental impact and a decline of system performances. Typically, small leakages remain unidentified for a long period of time, causing a considerable long-term performance degradation of the machine. This paper deals with a mechanistic approach to simulate an air-to-air heat pump for domestic air conditioning, in different refrigerant loss rate scenarios, to evaluate the corresponding degradation of its seasonal performances. Results shows an average of 10% improvement of seasonal performances of the machine, with the employment of tools for fault detection and diagnosis (FDD) able to detect a refrigerant leakage through data collected by sensor mounted on the machine. Furthermore a 11% reduction of indirect contribute to global warming impact is achieved for small refrigerant leakages, whereas for larger leakages the direct emissions of CO2 become 65% lower.

Documents disponibles

Format PDF

Pages : 8

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 : Effect of refrigerant leakages on energy consumption of an electric heat pump for domestic air-conditioning.
  • Identifiant de la fiche : 30028932
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 6th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
  • Date d'édition : 01/09/2021
  • DOI : http://dx.doi.org/10.18462/iir.TPTPR.2021.2062
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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