Ternary compositions for low-capacity refrigeration

Abstract

The invention relates to compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. The invention specifically relates to compositions essentially containing between 10 and 90 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 80 wt. % of HFC-134a and between 5 and 10 wt. % of HFC-32.

1 . A composition consisting essentially of from 10 to 90% by weight of 2,3,3,3-tetrafluoropropene, from 5 to 80% by weight of HFC-134a and from 5 to 10% by weight of HFC-32. 
     
     
         2 . The composition as claimed in  claim 1 , characterized in that it consists essentially of from 10 to 45% by weight of 2,3,3,3-tetrafluoropropene, from 50 to 80% by weight of HFC-134a and from 5 to 10% by weight of HFC-32. 
     
     
         3 . The composition as claimed in  claim 1 , characterized in that it further contains a stabilizer. 
     
     
         4 . A heat-transfer fluid comprising the composition as claimed in  claim 1 . 
     
     
         5 . A compression refrigeration systems, with exchangers operating in counterflow mode containing a heat-transfer fluid as claimed in  claim 4 .. 
     
     
         6 . (canceled) 
     
     
         7 . The compression refrigeration system as claimed in  claim 4  characterized in that it further contains a lubricant. 
     
     
         8 . Blowing agents comprising the composition as claimed in  claim 1 . 
     
     
         9 . Solvents comprising the composition as claimed in  claim 1 . 
     
     
         10 . Aerosols comprising the composition as claimed in  claim 1 .