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Document IIF

Analyse du potentiel d'amélioration de l'efficacité énergétique des conditionneurs d’air à variateur de fréquence.

Analysis on potential to enhance the energy efficiency of inverter air conditioners.

Numéro : pap. n. 1514

Auteurs : CUI M., WANG B., DING L., et al.

Résumé

The inverter air conditioner has been widely implemented due to higher energy efficiency and better thermal sensation. Because the frequency of the compressor is modulated in a large range according to the variation of the working conditions, the working states of the air conditioner varies a lot. The thermodynamic potential should be analyzed to enhance the annual performance. In this research, exergy analysis of experimental data is conducted for evaluating the irreversible loss distribution of inverter air conditioners in different operating states, which shows that most exergy loss in low frequency occurs in the evaporator and the compressor. Furthermore, thermal resistance analysis on the evaporator illustrates that the inner thermal resistance is almost equal to the external when it operates in low frequency. This work clarifies that heat transfer enhancement on the refrigerant side of evaporators is the key to improve the refrigeration efficiency of inverter air conditioners.

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Pages : 8

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    20 €

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    Gratuit

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Détails

  • Titre original : Analysis on potential to enhance the energy efficiency of inverter air conditioners.
  • Identifiant de la fiche : 30026791
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.1514

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