Koo, S Chang, J Kim, H Lee, BG Lee, J 2024-01-21T14:14:59Z 2024-01-21T14:14:59Z 2021-09-04 2000-03 0195-928X https://pubs.kist.re.kr/handle/201004/141557 Isothermal vapor-liquid equilibrium data for two binary mixtures of alternative refrigerants were determined by using an apparatus applying recirculating vapor and liquid. The difluoromethane (HFC-32) + 1,1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) and 1,1,1,2-tetranuoroethane (HFC-134a) + 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) systems were studied at 298.15 and 312.65 K. The pressure and vapor and liquid compositions were measured at each temperature. The experimental data were correlated with the Peng-Robinson equation of state using the van der Waals one-fluid mixing rule. Calculated results show that this equation yields good agreement with the experimental data. English KLUWER ACADEMIC/PLENUM PUBL Vapor-liquid equilibrium measurements for binary mixtures containing 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) Article 10.1023/A:1006635613506 1 INTERNATIONAL JOURNAL OF THERMOPHYSICS, v.21, no.2, pp.405 - 414 INTERNATIONAL JOURNAL OF THERMOPHYSICS 21 2 405 414 scie scopus 000086818700011 2-s2.0-0033741552 Thermodynamics Chemistry, Physical Mechanics Physics, Applied Thermodynamics Chemistry Mechanics Physics Article; Proceedings Paper HFC-134a HFC-227ea HFC-32 Peng-Robinson equation of state vapor-liquid equilibrium