lib.mEoS.CH4

Fluid info

  • CAS Number: 74-82-8

  • Formula: CH4

  • Synonym: R-50

  • Molecular weigth: 16.0428 g/mol

  • Tc: 190.5640 K

  • Pc: 4.5992 MPa

  • ρc: 162.6600 kg/m³

  • Tt: 90.6940 K

  • Tb: 111.6670 K

  • Acentric factor: 0.01142

  • Dipole moment: 0.0 Debye

Equation of state

  • Setzmann, U., Wagner, W.; A New Equation of State and Tables of Thermodynamic Properties for Methane Covering the Range from the Melting Line to 625 K at Pressures up to 1000 MPa. J. Phys. Chem. Ref. Data, 20(6) (1991) 1061-1155, http://dx.doi.org/10.1063/1.555898

  • Younglove, B.A., Ely, J.F.; Thermophysical Properties of Fluids. II. Methane, Ethane, Propane, Isobutane, and Normal Butane. J. Phys. Chem. Ref. Data 16(4) (1987) 577-798, http://dx.doi.org/10.1063/1.555785

  • Kunz, O., Wagner, W.; The GERG-2008 Wide-Range Equation of State for Natural Gases and Other Mixtures: An Expansion of GERG-2004. J. Chem.Eng. Data 57(11) (2012) 3032-3091, http://dx.doi.org/10.1021/je300655b

  • Friend, D.G., Ely, J.F., Ingham, H.; Thermophysical Properties of Methane. J. Phys. Chem. Ref. Data 18(2) (1989) 583-638, http://dx.doi.org/10.1063/1.555828

  • Span, R., Wagner, W.; Equations of state for technical applications. II. Results for nonpolar fluids.. Int. J. Thermophys. 24 (1) (2003) 41-109, http://dx.doi.org/10.1023/A:1022310214958

  • Sun, L., Ely, J.F.; Universal equation of state for engineering application: Algorithm and application to non-polar and polar fluids. Fluid Phase Equilib., 222-223 (2004) 107-118, http://dx.doi.org/10.1016/j.fluid.2004.06.028

Viscosity

  • Quiñones-Cisneros, S.E., Deiters, U.K.; Generalization of the Friction Theory for Viscosity Modeling. J. Phys. Chem. B, 110(25) (2006) 12820-12834, http://dx.doi.org/10.1021/jp0618577

  • Vogel, E., Wilhelm, J., Küchenmeister, C., Jaesche, M.; High-precision viscosity measurements on methane. High Temperatures-High Pressures 32(1) (2000) 73-81, http://dx.doi.org/10.1068/htwu359

  • Younglove, B.A., Ely, J.F.; Thermophysical Properties of Fluids. II. Methane, Ethane, Propane, Isobutane, and Normal Butane. J. Phys. Chem. Ref. Data 16(4) (1987) 577-798, http://dx.doi.org/10.1063/1.555785

  • Friend, D.G., Ely, J.F., Ingham, H.; Thermophysical Properties of Methane. J. Phys. Chem. Ref. Data 18(2) (1989) 583-638, http://dx.doi.org/10.1063/1.555828

Thermal Conductivity

  • Friend, D.G., Ely, J.F., Ingham, H.; Thermophysical Properties of Methane. J. Phys. Chem. Ref. Data 18(2) (1989) 583-638, http://dx.doi.org/10.1063/1.555828

  • Younglove, B.A., Ely, J.F.; Thermophysical Properties of Fluids. II. Methane, Ethane, Propane, Isobutane, and Normal Butane. J. Phys. Chem. Ref. Data 16(4) (1987) 577-798, http://dx.doi.org/10.1063/1.555785

Calculation example

Using the first option for equation of state, we can get this diagram plots with the liquid-gas saturation region:

_images/CH4.png

The diagram is generated with this module running with the compound name as parameter or edited in file

python3 plotMEoS.py CH4