Properties of natural gas L and natural gas H (EGAS)

EGAS module



Program features:

The module generates properties for Natural gas L and Natural gas H (gaseous).
A characteristic composition for each type of natural gas is provided.

Additionally you can enter the concentrations of each component manually to determine your own composition.

Composition in Vol-%

  Natural Gas L Natural Gas H
Methane CH4 82,0 85,4
Ethane C2H6 3,3 8,0
Propane C3H8 0,6 2,9
Butane C4H10 0,3 1,0
Nitrogen N2 12,6 0,7
Carbon dioxide CO2 1,2 2,0

The program generates the following properties for a given temperature and pressure:

  • Density
  • Specific heat capacity
  • Dynamic viscosity
  • Kinematic viscosity
  • Thermal conductivity
  • Prandtl number
  • Thermal diffusivity
  • Thermal coefficient of expansion
  • Compressibility
  • Isentropic exponent cp/cv
  • Enthalpies and entropies


The applicable temperature range is from -50 to 300 °C
The applicable pressure range is from 1 to 250 bar

The physical state state of the gas is always assumed as gaseous. A change of phase is not considered (no phase equilibria). For calculation of phase equilibria we recommend using our properties generating program PROPER.

Price: 410 EUR plus VAT

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