ABSTRACT

The gaseous PVTx properties of {propane (R290) + 1,1,1,2-tetrafluoroethane (HFC-134a)} were measured at temperatures from 252 K to 320 K and corresponding pressures from 200 kPa to 2000 kPa and compositions from 0.4 to 0.65 mass fraction of R290 using the Burnett isothermal expansion method. The uncertainties in the present measurements were estimated to be within +-10 kPa for pressure, +-10 mK for temperature, and +-0.001 mass fraction for composition. On the basis of the experimental PVTx property data, the truncated virial equations of state were developed for the binary R290/R134a systems. The temperature dependences of the second and third virial coefficients are also discussed.

Compounds

#	Formula	Name
1	C3H8	propane
2	C2H2F4	1,1,1,2-tetrafluoroethane
3	N2	nitrogen

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	Phase	Method	#Points
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	18
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	18
POMD	3	Mass density, kg/m3 ; Gas	Temperature, K; Gas Pressure, kPa; Gas	Gas	Burnett expansion method	5
POMD	1 2	Mass density, kg/m3 ; Gas	Mass fraction - 1; Gas Pressure, kPa; Gas Temperature, K; Gas	Gas	Burnett expansion method	613
POMD	1 2	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Gas Mass fraction - 1; Gas	Gas Liquid	Closed cell (Static) method	101

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

PVTx properties in the gas phase for binary R290/R134a system

Qi, Y.[Yingxia], Zhang, H.[Hua], Liu, Y.[Yefeng], Wu, W.[Weidong], Chen, X.[Xi], Yang, X.[Xi]

ABSTRACT