The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Keywords: آسئوتروپیک; Refrigerants; Ammonia (R717); 1,1,1,2-Tetrafluoroethane (R134a); Vapour liquid equilibrium (VLE); Azeotropic;