Vapor and Liquid (p-ρ-T-x) Measurements of Binary Refrigerant Blends Containing R-32, R-152a, R-227ea, R-1234yf, and R 1234ze(E)
Tara Fortin, Mark O. McLinden
The pressure-density-temperature-composition (p-ρ-T-x) data of binary refrigerant mixtures containing R 32 (difluoromethane), R 152a (1,1 difluoroethane), R 227ea (1,1,1,2,3,3,3 heptafluoropropane), R 1234yf (2,3,3,3 tetrafluoropropene), and R 1234ze(E) (trans 1,3,3,3-tetrafluoropropene) were measured in both the vapor and liquid phases using a two-sinker, magnetic-suspension densimeter. The specific samples in this study comprised two compositions for each of the following four binary refrigerant blends: R 32 + R 1234yf, R 32 + R 1234ze(E), R 1234yf + R 152a, and R 1234ze(E) + R 227ea. Single-phase vapor densities were measured over a temperature range of approximately (253 to 293) K. Single-phase liquid and supercritical densities were measured over a temperature range of approximately (230 to 400) K and pressures up to 22 MPa; for refrigerant blends containing R 1234yf the maximum pressure was limited to 14 MPa. Experimental data, including an assessment of the associated expanded uncertainties, have been reported. Additionally, measurement results were compared to available literature data and to existing equations of state and mixture models.
and McLinden, M.
Vapor and Liquid (p-ρ-T-x) Measurements of Binary Refrigerant Blends Containing R-32, R-152a, R-227ea, R-1234yf, and R 1234ze(E), Journal of Chemical and Engineering Data, [online], https://doi.org/10.1021/acs.jced.3c00104, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935652
(Accessed December 3, 2023)