![]() The input variables ( p,h ,x̅ ) and ( p, s ,x̅ ) are of particular interest for compressor and flow calculations, which are thus considerably faster. They enable fast and stable property calculations. The routines developed for these additional calculation options are based on special algorithms that use modern numerical procedures. total internal energy, total volume and total composition ( u, v ,x̅ ).temperature, total volume and total composition ( T, v ,x̅ ).pressure, total entropy and total composition ( p, s ,x̅ ).pressure, total enthalpy and total composition ( p,h ,x̅ ).An advanced version, where in addition to pressure, temperature and total composition ( p ,T ,x̅ ), the following combinations of input quantities can be used:.Note: The symbol x̅ used in the following without an index is the abbreviated notation for the total composition of the mixture instead of specifying all the individual x i of the components i that are contained in the mixture under consideration. A “classical” version, where the pressure p, temperature T and total composition x̅ (mole fractions) are the input quantities.There are two software versions available: The VLE calculation options comprise flash, phase envelope, dew point and bubble point calculations for any binary and multi-component mixture defined above. The software enables to calculate thermodynamic properties in the homogeneous gas, liquid and supercritical regions, and allows to perform vapour-liquid equilibrium (VLE) calculations. ![]() These mixtures can be composed of any of the 21 components listed in the following table. Kurzeja can be found there as well.įor the reference equation of state GERG-2008 for natural gases and similar mixtures, software is available that allows the calculation of more than 20 thermodynamic properties of binary mixtures, natural gases and other multi-component mixtures. ![]() NET DLL are given at the end of this software description.ĭetailed information about the current distribution channel by the engineering office Dr.-Ing. Information about the use of the software under the various Windows operating systems and Excel versions as well as about the integration of the available 32- bit or 64-bit Fortran DLL using Excel Add-Ins and 32-bit. Software for the Reference Equation of State GERG-2008 for Natural Gases and Similar MixturesĪ detailed description of the reference equation of state GERG-2008 is given here. ![]()
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