NON-AZEOTROPIC MIXTURES OF 1,1,1,2-TETRAFLUOROETHANE, 1,1,1-TRIFLUOROETHANE AND PENTAFLUOROETHANE, AND THEIR APPLICATION AS REFRIGERATED FLUIDS

摘要

To replace the azeotropic mixture of dichlorodifluoromethane and 1,1-difluoroethane (R-500) in transport refrigeration, the invention proposes to use a non-azeotropic mixture containing by mass 55 to 65% of 1,1,1,2 tetrafluoroethane, 1 to 27% of 1,1,1-trifluoroethane and 10 to 44% of pentafluoroethane. The thermodynamic properties of this mixture are very close to those of the R-500 mixture.