R245fa¶

References¶

Equation of State¶

Ryo Akasaka, Yong Zhou, and Eric W. Lemmon. A Fundamental Equation of State for 1,1,1,3,3-Pentafluoropropane (R-245fa). J. Phys. Chem. Ref. Data, 44:013104, 2015. doi:10.1063/1.4913493.

Thermal Conductivity¶

Marcia L. Huber, Arno Laesecke, and Richard A. Perkins. Model for the Viscosity and Thermal Conductivity of Refrigerants, Including a New Correlation for the Viscosity of R134a. Ind. Eng. Chem. Res., 42:3163–3178, 2003. doi:10.1021/ie0300880.

Viscosity¶

Ian H. Bell and Arno Laesecke. Viscosity of refrigerants and other working fluids from residual entropy scaling . In 16th International Refrigeration and Air Conditioning Conference at Purdue, July 11-14, 2016. 2016.

Surface Tension¶

A. Mulero, I. Cachadiña, and M. I. Parra. Recommended Correlations for the Surface Tension of Common Fluids. J. Phys. Chem. Ref. Data, 41(4):043105–1:13, 2012. doi:10.1063/1.4768782.

Aliases¶

R245FA

Fluid Information¶

Parameter, Value
General
Molar mass [kg/mol]	0.13404794
CAS number	460-73-1
ASHRAE class	B1
Formula	C₃F₅H₃
Acentric factor	0.3776
InChI	InChI=1S/C3H3F5/c4-2(5)1-3(6,7)8/h2H,1H2
InChIKey	MSSNHSVIGIHOJA-UHFFFAOYSA-N
SMILES	C(C(F)F)C(F)(F)F
ChemSpider ID	61345
Limits
Maximum temperature [K]	440.0
Maximum pressure [Pa]	200000000.0
Triple point
Triple point temperature [K]	171.05
Triple point pressure [Pa]	13.75743250947722
Critical point
Critical point temperature [K]	427.00998969559254
Critical point density [kg/m3]	519.2846757691916
Critical point density [mol/m3]	3873.872853019536
Critical point pressure [Pa]	3650995.0241281237

REFPROP Validation Data¶

Note

This figure compares the results generated from CoolProp and those generated from REFPROP. They are all results obtained in the form \(Y(T,\rho)\), where \(Y\) is the parameter of interest and which for all EOS is a direct evaluation of the EOS

You can download the script that generated the following figure here: (link to script), right-click the link and then save as… or the equivalent in your browser. You can also download this figure as a PDF.

Consistency Plots¶

The following figure shows all the flash routines that are available for this fluid. A red + is a failure of the flash routine, a black dot is a success. Hopefully you will only see black dots. The red curve is the maximum temperature curve, and the blue curve is the melting line if one is available for the fluid.

In this figure, we start off with a state point given by T,P and then we calculate each of the other possible output pairs in turn, and then try to re-calculate T,P from the new input pair. If we don’t arrive back at the original T,P values, there is a problem in the flash routine in CoolProp. For more information on how these figures were generated, see CoolProp.Plots.ConsistencyPlots

Note

You can download the script that generated the following figure here: (link to script), right-click the link and then save as… or the equivalent in your browser. You can also download this figure as a PDF.

Superancillary Plots¶

The following figure shows the accuracy of the superancillary functions relative to extended precision calculations carried out in C++ with the teqp library. The results of the iterative calculations with REFPROP and CoolProp are also shown.

Note

You can download the script that generated the following figure here: (link to script), right-click the link and then save as… or the equivalent in your browser. You can also download this figure as a PDF.