ABSTRACT

Liquid and vapour viscosities are reported for the binary refrigerant mixtures (R125 + R152a), (R125 + R1234ze(E)), (R143a + R1234ze(E)), (R143a + R1234yf) and (R1234ze(E) + R1234yf). The measurements were made with a vibrating wire viscometer and span temperatures from (252 to 403) K and pressures from (0.9 to 4.0) MPa. The performance of the vibrating-wire apparatus was validated by measuring the viscosity of pure R152a in both the vapour and liquid regions. These measurements and previously published data were used to tune binary interaction parameters in the extended corresponding states equation model for viscosity implemented in the NIST software REFPROP 9.1. After tuning, deviations between the model and reported viscosities were reduced from between (-4 and 8) % to within 2 %.

Compounds

#	Formula	Name
1	C2HF5	pentafluoroethane
2	C2H3F3	1,1,1-trifluoroethane
3	C2H4F2	1,1-difluoroethane
4	C3H2F4	2,3,3,3-tetrafluoro-1-propene
5	C3H2F4	trans-1,3,3,3-tetrafluoropropene

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Viscosity, Pa*s ; Gas	Pressure, kPa; Gas	Temperature, K; Gas	Gas	Vibrating wire viscometry	4
POMD	1	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating wire viscometry	23
POMD	1 3	Viscosity, Pa*s ; Gas	Pressure, kPa; Gas Temperature, K; Gas	Mole fraction - 1; Gas	Gas	Vibrating wire viscometry	6
POMD	1 3	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Mole fraction - 1; Liquid	Liquid	Vibrating wire viscometry	20
POMD	1 5	Viscosity, Pa*s ; Gas	Pressure, kPa; Gas Temperature, K; Gas	Mole fraction - 1; Gas	Gas	Vibrating wire viscometry	6
POMD	1 5	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Mole fraction - 1; Liquid	Liquid	Vibrating wire viscometry	8
POMD	2 5	Viscosity, Pa*s ; Gas	Pressure, kPa; Gas Temperature, K; Gas	Mole fraction - 2; Gas	Gas	Vibrating wire viscometry	6
POMD	2 5	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Mole fraction - 2; Liquid	Liquid	Vibrating wire viscometry	9
POMD	2 4	Viscosity, Pa*s ; Gas	Pressure, kPa; Gas Temperature, K; Gas	Mole fraction - 2; Gas	Gas	Vibrating wire viscometry	6
POMD	2 4	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Mole fraction - 2; Liquid	Liquid	Vibrating wire viscometry	11
POMD	5 4	Viscosity, Pa*s ; Gas	Pressure, kPa; Gas Temperature, K; Gas	Mole fraction - 5; Gas	Gas	Vibrating wire viscometry	6
POMD	5 4	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Mole fraction - 5; Liquid	Liquid	Vibrating wire viscometry	9

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Liquid and Vapor Viscosities of Binary Refrigerant Mixtures Containing R1234yf or R1234ze(E)

Akhfash, Masoumeh, Ghafri, Saif ZS. Al, Rowland, Darren, Hughes, Thomas J., Tsuji, Tomoya, Tanaka, Yukio, Seiki, Yoshio, May, Eric F.

ABSTRACT