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

\(C_{3}F_{5}H_{3}\)

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

2D image

http://www.chemspider.com/ImagesHandler.ashx?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]

427.01

Critical point density [kg/m3]

519.4357675

Critical point density [mol/m3]

3875.0

Critical point pressure [Pa]

3651000.0

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.

../../_images/R245fa.png

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.

../../_images/R245fa1.png