Partager

Évaluation de la fiabilité et de la performance d'un conditionneur d'air utilisant un frigorigène à faible GWP.

Performance and reliability evaluation of a room air conditioner with low GWP refrigerant.

Numéro : pap. NS27

Auteurs : OKAZAKI T., MAEYAMA H., SAITO M., et al.

Résumé

The system performance of a room air conditioner (RAC) with low GWP refrigerants was evaluated. The test units are drop-in unit and modified unit with a rotary compressor and alkyl benzene oil. As test results, the rated cooling capacity (4.0 kW) can not be obtained and APF ratio of HFO-1234yf is 80% to R410A in drop-in test. In modified unit test, the rated cooling capacity can be obtained and APF ratio of HFO-1234yf is 91% to R410A. In the test using the modified compressor, APF ratio of HFO-1234yf is 95% to R410A. From these results, it is predicted that the size of indoor unit is 12% and the size of outdoor unit is 54% larger than R410A unit to obtain the same performance as R410A. Also, the system performance of R32/HFO-1234yf mixtures was evaluated. In R32/HFO-1234yf mixtures APF tends to increase in the range of more than 30wt% of R32 and APF ratio to R410A becomes 93% on condition that R32 concentration is 60wt%. Furthermore, stability and sliding characteristics were evaluated and compared with R410A results. HFO-1234yf is less stable than R410A. Especially, the air accelerates its deterioration severely. On the other hand, HFO-1234yf has better sliding property than R410A.

Documents disponibles

Format PDF

Pages : 7 p.

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 : Performance and reliability evaluation of a room air conditioner with low GWP refrigerant.
  • Identifiant de la fiche : 30000591
  • Langues : Anglais
  • Source : Measures to address climate change. 2010 International Symposium on Next-generation Air Conditioning and Refrigeration Technology: February 17-19, Tokyo, Japan.
  • Date d'édition : 17/02/2010

Liens


Voir d'autres communications du même compte rendu (75)
Voir le compte rendu de la conférence

Indexation