R1243zf
R1243zf provides high accuracy thermodynamic properties for 3,3,3-trifluoroprop-1-ene, CF3CF=CH2, CAS number 677-21-4, MW 96.05 g/gmole using the Fundamental Equation of State presented in:
"A Helmholtz Energy Equation of Statefor 3,3,3-Trifluoroprop-1-ene (R-1243zf)"
Ryo Akasaka1 and Eric W. Lemmon
International Journal of Thermophysics (2025) 46:23 https://doi.org/10.1007/s10765-024-03481-6
(Versions previous to 12.009 used the equation of state reported in:
"Fundamental Equations of State for cis-1,3,3,3-Tetrafluoropropene [R-1234ze(Z)] and 3,3,3-Trifluoropropene (R-1243zf))"
Ryo Akasaka and E. Lemmon
J. Chem. Eng. Data, April 18, 2019)
The correlation is valid for temperatures in the range between 122.35 K and 430K for pressures less than 35 MPa. Enthalpy and entropy values are referenced to 200 kJ/kg and 1 kJ/kg-K, respectively for saturated liquid at 273.15 K.
Viscosity and thermal conductivity have been estimated using a corresponding states approach with propane as the reference fluid as suggested in:
Klein, S.A., McLinden, M.O., and Laesecke , A., "An improved extended corresponding states method for estimation of viscosity of pure refrigerants and mixtures'
Int. J. of Refrigeration, 20, pp. 208-217, 1997
McLinden et al., "An extended corresponding states model for the thermal conductivity of refrigerants and refrigerant mixtures",
Int. J. of Refrigeration, 23, pp. 43-63, 2000
The estimated transport data using these methods agrees within 10% compared to measurements reported in:
"Saturated liquid kinematic viscosity, surface tension and thermal diffusivity of two low-GWP refrigerants 3,3,3-trifluoropropene (R1243zf) and trans-1-chloro-3,3,3-trifluoro-1-propene (R1233zd(E)) by light scattering method"
Guanjia Zhao, Zemin Yuan, Xing Zhang, Jianguo Yin, Suxia Ma
International Journal of Refrigeration 127 (2021) 194-202
Surface tension information is provided from:
Surface tension of low GWP refrigerants R1243zf, R1234ze(Z), and R1233zd(E)
Chieko Kondou, Ryuichi Nagata, Noriko Nii, Shigeru Koyama, Yukihiro Higashi
Int. J. of Refrigeration, Vol. 53, pp. 80-89, 2015.