Ternary compositions for high-capacity refrigeration

Abstract

Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions of between 15 and 50 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 40 wt. % of HFC-134a and between 45 and 60 wt. %, preferably between 45 and 50 wt. %, of HFC-32.

1 . A composition essentially containing from 15 to 50% by weight of 2,3,3,3-tetrafluoropropene, from 5 to 40% by weight of HFC-134a and from 45 to 60% by weight of HFC-32, preferably from 45 to 50% by weight of HFC-32. 
     
     
         2 . The composition as claimed in  claim 1 , characterized in that it is stabilized. 
     
     
         3 . A heat-transfer fluid comprising the composition as claimed in  claim 1 . 
     
     
         4 . The heat-transfer fluid as claimed in  claim 3 , characterized in that it is used in compression refrigeration systems, preferably with exchangers operating in counterflow mode. 
     
     
         5 . The heat-transfer fluid as claimed in  claim 3 , characterized in that it is used as a replacement for R-410A. 
     
     
         6 . The heat-transfer fluid as claimed in  claim 3 , characterized in that it is employed in the presence of a lubricant. 
     
     
         7 . Blowing agents comprising the compositions as claimed in  claim 1 . 
     
     
         8 . Solvents comprising the compositions as claimed in  claim 1 . 
     
     
         9 . Aerosols comprising the compositions as claimed in  claim 1 .