Vapor-liquid Equilibrium Data Concerning Refrigerant Systems (R116 + R143a)

Development of modern refrigeration systems is critical for the success of new global environmental protection efforts. The binary system of refrigerants: Hexafluoroethane (R116) + 1,1,1- trifluoroethane (R143a), has been studied with the aim of providing PTxy data. Isothermal vapor-liquid equilibrium data have been generated using the “static-analytic” method from 258 to 328 K at pressures from 0.39 to 3.89 MPa. The modelcomposed of the Peng-Robinson equation of state, the Mathias-Copeman alpha function, the Wong-Sandler mixing rules and the NRTL cell theory is applied herein to correlate the data and calculate the critical line.