Ethylene

References

Equation of State

J. Smukala, R. Span, and W. Wagner. New Equation of State for Ethylene Covering the Fluid Region for Temperatures From the Melting Line to 450 K at Pressures up to 300 MPa. J. Phys. Chem. Ref. Data, 29(5):1053–1121, 2000. doi:10.1063/1.1329318.

Melting Line

J. Smukala, R. Span, and W. Wagner. New Equation of State for Ethylene Covering the Fluid Region for Temperatures From the Melting Line to 450 K at Pressures up to 300 MPa. J. Phys. Chem. Ref. Data, 29(5):1053–1121, 2000. doi:10.1063/1.1329318.

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

ethylene, ETHYLENE, R1150

Fluid Information

Parameter, Value  
General  
Molar mass [kg/mol] 0.02805376
CAS number 74-85-1
ASHRAE class A3
Formula \(C_{2}H_{4}\)
Acentric factor 0.0866
InChI InChI=1/C2H4/c1-2/h1-2H2
InChIKey VGGSQFUCUMXWEO-UHFFFAOYAE
SMILES C=C
ChemSpider ID 6085
2D image http://www.chemspider.com/ImagesHandler.ashx?id=6085
Limits  
Maximum temperature [K] 450.0
Maximum pressure [Pa] 300000000.0
Triple point  
Triple point temperature [K] 103.989
Triple point pressure [Pa] 122.026763843
Critical point  
Critical point temperature [K] 282.35
Critical point density [kg/m3] 214.24
Critical point density [mol/m3] 7636.76598075
Critical point pressure [Pa] 5041800.0
   

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/Ethylene.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/Ethylene1.png