An International Standard Formulation for trans-1-Chloro-3,3,3-trifluoroprop-1-ene [R1233zd(E)] Covering Temperatures from the Triple-point Temperature to 450 K and Pressures up to 100 MPa
Ryo Akasaka, Eric W. Lemmon
A new Helmholtz energy equation of state is presented for trans-1-chloro-3,3,3-trifluoroprop-1-ene [R1233zd(E)], which is expressed with temperature and density as the independent variables. Experimental data in the range of temperatures from 215 K to 444 K and pressures up to 35 MPa form the basis of the new equation. In this range, expanded uncertainties (k = 2) of the new equation of state are 0.07 % for vapor pressures at temperatures above the normal boiling point temperature (≈ 291 K), 0.2 % for vapor pressures at lower temperatures, 0.05 % for liquid densities, 0.15 % for vapor densities, 0.1 % for saturated liquid densities, 0.05 % for liquid-phase sound speeds, and 0.08 % for vapor-phase sound speeds. The new equation is valid at temperatures from the triple-point (165.75 K) to 450 K and pressures up to 100 MPa with reasonable uncertainties because it fully extrapolates with correct physical behavior to higher temperatures and pressures, and to lower temperatures. The equation of state presented here has been recommended as an international standard by the working group, presently revising ISO 17584 (Refrigerant Properties).
and Lemmon, E.
An International Standard Formulation for trans-1-Chloro-3,3,3-trifluoroprop-1-ene [R1233zd(E)] Covering Temperatures from the Triple-point Temperature to 450 K and Pressures up to 100 MPa, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.1063/5.0083026, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=933822
(Accessed November 30, 2023)