CarbonDioxide

References

Equation of State

R. Span and W. Wagner. A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple Point Temperature to 1100 K at Pressures up to 800 MPa. J. Phys. Chem. Ref. Data, 25:1509–1596, 1996. doi:10.1063/1.555991.

Thermal Conductivity

G. Scalabrin, P. Marchi, F. Finezzo, and R. Span. A Reference Multiparameter Thermal Conductivity Equation for Carbon Dioxide with an Optimized Functional Form. J. Phys. Chem. Ref. Data, 35(4):1549–1575, 2006. doi:10.1063/1.2213631.

Viscosity

A. Fenghour, W.A. Wakeham, and V. Vesovic. The Viscosity of Carbon Dioxide. J. Phys. Chem. Ref. Data, 27(1):31–44, 1998. 5. doi:10.1063/1.556013.

Melting Line

R. Span and W. Wagner. A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple Point Temperature to 1100 K at Pressures up to 800 MPa. J. Phys. Chem. Ref. Data, 25:1509–1596, 1996. doi:10.1063/1.555991.

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

R744, co2, CO2, carbondioxide, CARBONDIOXIDE

Fluid Information

Parameter, Value  
General  
Molar mass [kg/mol] 0.0440098
CAS number 124-38-9
ASHRAE class A1
Formula \(CO_{2}\)
Acentric factor 0.22394
InChI InChI=1/CO2/c2-1-3
InChIKey CURLTUGMZLYLDI-UHFFFAOYAO
SMILES C(=O)=O
ChemSpider ID 274
2D image http://www.chemspider.com/ImagesHandler.ashx?id=274
Limits  
Maximum temperature [K] 2000.0
Maximum pressure [Pa] 800000000.0
Triple point  
Triple point temperature [K] 216.592
Triple point pressure [Pa] 517964.343448
Critical point  
Critical point temperature [K] 304.1282
Critical point density [kg/m3] 467.600001282
Critical point density [mol/m3] 10624.9063
Critical point pressure [Pa] 7377300.0
   

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/CarbonDioxide.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/CarbonDioxide1.png