title: Correlations for the Viscosity of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) andtrans-1,3,3,3-Tetrafluoropropene (R1234ze(E)).
abstract: Due to concerns about global warming, there is interest in 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) andtrans-1,3,3,3-Tetrafluoropropene (R1234ze(E)) as potential replacements for refrigerants with high global warming potential (GWP). In this manuscript we survey available data and provide viscosity correlations that cover the entire fluid range including vapor, liquid, and supercritical regions. The correlation for R1234yf is valid from the triple point (220 K) to 410 K at pressures up to 30 MPa, and the correlation for R1234ze(E) is valid from the triple point (169 K) to 420 K at pressures up to 100 MPa. The estimated uncertainty for both correlations at a 95 % confidence level is 2 % for the liquid phase over the temperature range 243 K to 363 K at pressures to 30 MPa, and 3 % for the gas phase at atmospheric pressure.
authors.affiliation: Applied Chemical and Materials Division, National Institute of Standards and Technology Boulder, Colorado 80305-3328, U.S.A.
authors.forename: Marcia L
authors.initials: ML
authors.lastname: Huber
authors.affiliation: Laboratory of Thermophysical Properties and Environmental Processes, Chemical Engineering Department, Aristotle University, Thessaloniki 54636, Greece.
authors.forename: Marc J
authors.initials: MJ
authors.lastname: Assael
keywords: 2,3,3,3-Tetrafluoroprop-1-ene; R1234yf; R1234ze(E); correlation; trans-1,3,3,3-Tetrafluoropropene; viscosity