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Coefficient de performance de l'éther fluoré et des mélanges contenant de l'éther fluoré.

Coefficient of performance of fluorinated ether and fluorinated ether mixtures.

Auteurs : KUL I., DESMARTEAU D. D., BEYERLEIN A.

Résumé

The COP is estimated from thermodynamic literature data using methods of Morrison and McLinden (1986) and reported for the ether R-E125 and the ether mixtures R-E218 (50%)/R-E143a (50%), R-E218/R134a/R161, R-E125 (75%)/R161 (25%), R-E125/R32/R152a, and R-E125/R32/R134a. The binary mixtures are azeotropic mixtures with the azeotropic compositions given in mole fraction, and the ternary mixtures are equimolar mixtures. The calculated COP of the mixtures ranged from 80 to 90% of that for R22 except for the azeotropic mixtures R-E125 (75%)/R161 (25%) and RE218 (50%)/R-E143A, whose calculated COPs are lower. The calculations show that R-E125 and mixtures containing R-E218 would require superheat on the suction line to eliminate "wet compression".

Détails

  • Titre original : Coefficient of performance of fluorinated ether and fluorinated ether mixtures.
  • Identifiant de la fiche : 2006-0535
  • Langues : Anglais
  • Source : ASHRAE Transactions. 2004 Annual Meeting, Nashville, Tennessee, USA. Volume 110, part 2 + CD-ROM.
  • Date d'édition : 2004

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