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Thermo- and fluid-dynamical modelling of two-phase multi-component carbon dioxide mixtures
Authors:Svend Tollak Munkejord  Jana P Jakobsen  Anders Austegard  Mona J Mølnvik
Institution:1. Institute for Energy Technology, PO box 40, NO-2027, Kjeller, Norway;2. University of Oslo, Department of Chemistry, FERMiO, Gaustadalléen 21, NO-0349, Oslo, Norway;1. Federal Institute for Geosciences and Natural Resources (BGR), Stilleweg 2, D-30655 Hannover, Germany;2. BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, D-12205 Berlin, Germany;3. Institute of Thermal Separation Sciences (ITVT), Hamburg University of Technology, Eissendorfer Strasse 38, D-21073 Hamburg, Germany;4. Institute of Energy Systems (IET), Hamburg University of Technology, Denickestr. 15, D-21073 Hamburg, Germany;5. Institute of Geosciences and Geography, Martin Luther University Halle-Wittenberg, Von-Seckendorff-Platz 3, D-06120 Halle/Saale, Germany;6. DBI Gas-und Umwelttechnik GmbH, Karl-Heine-Str. 109/111, D-04229 Leipzig, Germany;1. Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, CA, USA;2. Institute of Environmental Assessment and Water Research, Spanish National Research Council (IDAEA-CSIC), Barcelona, Spain;3. Associated Unit: Hydrogeology Group (UPC-CSIC), Barcelona, Spain;4. Swiss Seismological Service, Swiss Federal Institute of Technology, ETHZ, Zürich, Switzerland;1. Federal Institute for Materials Research and Testing, Berlin, Germany;2. University of Applied Sciences, Berlin, Germany
Abstract:A method for calculating the transport and depressurization of a two-phase multi-component CO2 mixture is presented. The thermodynamical and transport properties for a CO2–CH4 mixture are calculated using the Soave–Redlich–Kwong equation of state (SRK). The fluid flow is described by a drift-flux model, which is solved using the multi-stage (MUSTA) centred scheme. Numerical results are shown, illustrating the effect of mixture composition and the feasibility of the approach.
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