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Conditionneurs d'air : substituts de HCFC-22.

Alternatives to HCFC-22 for air conditioners.

Auteurs : DEVOTTA S., WAGHMARE A. V., SAWANT N. N., et al.

Type d'article : Article

Résumé

Some selected fluids have been assessed for their suitability as alternatives to HCFC-22 for air conditioners. Only those refrigerants with zero ozone depletion potential are considered. NIST CYCLE_D has been used for the comparative thermodynamic analysis. Among the refrigerants studied (HFC-134a, HC-290, R407C, R410A and three blends of HFC-32, HFC-134a and HFC-125), HFC-134a offers the highest COP, but its capacity is the lowest and requires much larger compressors. The characteristics of HC-290 are very close to those of HCFC-22, and compressors require very little modification. Therefore, HC-290 is a potential candidate provided the risk concerns are mitigated as had been accomplished for refrigerators. For retrofitting, R407C is probably the best candidate.

Détails

  • Titre original : Alternatives to HCFC-22 for air conditioners.
  • Identifiant de la fiche : 2001-2911
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 21 - n. 6
  • Date d'édition : 04/2001

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