Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Vapor liquid equilibria for binary mixtures of difluoromethane (R32) + fluoroethane (R161) and fluoroethane (R161) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E))

Meng, Xianyang, Hu, Xiaozhen, Yang, Tao, Wu, Jiangtao
J. Chem. Thermodyn. 2018, 118, 43-50
ABSTRACT
Developing new refrigerants with low global warming potential (GWP) is the major challenge for the refrigeration industry with the Paris Agreement going into effect on 4 November 2016. In this work, we reported the isothermal vapor liquid equilibrium (VLE) data for the low GWP binary refrigerants of difluoromethane (R32) + fluoroethane (R161) and fluoroethane (R161) + trans-1,3,3,3-tetrafluoropropene (R1234ze(E)). The measurements were carried out with a quasi-static analytical apparatus along five isotherms from (283.15 to 323.15) K. The experimental data were correlated by Peng-Robinson-Stryjek-Vera equation of state combined with the Wong and Sandler mixing rule and the non-random two-liquid activity coefficient (PRSV +WS + NRTL) model. The correlated results and the experimental data show good consistency. The average absolute deviation of pressure (AAD(p)) and average absolute deviation of vapor phase mole fraction (AAD(y)) are 0.12% and 0.0011 for R32 + R161, 0.20% and 0.0014 for R161 + R1234ze(E), respectively.
Compounds
# Formula Name
1 CH2F2 difluoromethane
2 C2H5F fluoroethane
3 C3H2F4 trans-1,3,3,3-tetrafluoropropene
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 55
  • POMD
  • 1
  • 2
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 55
  • POMD
  • 2
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 55
  • POMD
  • 2
  • 3
  • Mole fraction - 2 ; Gas
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 55