Huber Marcia L, Assael Marc J
Applied Chemical and Materials Division, National Institute of Standards and Technology Boulder, Colorado 80305-3328, U.S.A.
Laboratory of Thermophysical Properties and Environmental Processes, Chemical Engineering Department, Aristotle University, Thessaloniki 54636, Greece.
Int J Refrig. 2016 Nov;71:39-45. doi: 10.1016/j.ijrefrig.2016.08.007. Epub 2016 Aug 17.
Due to concerns about global warming, there is interest in 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and -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.
由于对全球变暖的担忧，人们对2,3,3,3 - 四氟丙烯（R1234yf）和1,3,3,3 - 四氟丙烯（R1234ze(E)）作为具有高全球变暖潜能值（GWP）的制冷剂的潜在替代品产生了兴趣。在本论文中，我们调研了现有数据并给出了涵盖整个流体范围（包括气相、液相和超临界区域）的黏度关联式。R1234yf的关联式在三相点（220 K）至410 K、压力高达30 MPa的范围内有效，R1234ze(E)的关联式在三相点（169 K）至420 K、压力高达100 MPa的范围内有效。在95%置信水平下，对于这两个关联式，在温度范围243 K至363 K、压力至30 MPa时，液相的估计不确定度为2%，在大气压下气相的估计不确定度为3%。
