Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

The experimental investigation of the vapour liquid phase equilibrium for (ammonia + 2,3,3,3-tetrafluoroprop-1-ene) system

Zhao, Y.[Yanxing], Dong, X.[Xueqiang], Zhong, Q.[Quan], Li, H.[Huiya], Zhang, H.[Haiyang], Gong, M.[Maoqiong], Shen, J.[Jun]
J. Chem. Thermodyn. 2017, 113, 257-262
ABSTRACT
Searching for mixed alternative refrigerants with less influence on global warming is one of the main tasks of the refrigeration industry. This paper presents the vapour liquid phase equilibrium and vapour liquid liquid phase equilibrium data of (ammonia + 3,3,3-tetrafluoroprop-1-ene) system at temperature from 243.150 K to 283.150 K. The vapour pressures of 3,3,3-tetrafluoroprop-1-ene were compared with Refprop 9.1, and the maximum deviation of pressure is 0.0007 MPa. The VLE and VLLE data were regressed by the PR-MHV2-NRTL model. Good reproduction was shown with the maximum RT = 0.009 K, Rp = 0.0040 MPa, Rx = 0.013 and Ry = 0.013. The homogeneous or heterogeneous azeotropic behaviours were found for the systems concerned over the temperature ranges investigated. The present results suggest that the volumetric refrigeration capacity of (ammonia + 2,3,3,3-tetrafluoroprop-1-ene) azeotropic mixture is 15% higher than that of ammonia and 79% higher than that of 2,3,3,3- tetrafluoroprop-1-ene.
Compounds
# Formula Name
1 H3N ammonia
2 C3H2F4 2,3,3,3-tetrafluoro-1-propene
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
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 11
  • POMD
  • 2
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 58
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 58
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • 2
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • 2