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DTSTAMP:20190315T103519
UID:a5fd4bea-4705-11e9-b79f-000e0c3db68b
SUMMARY:Hybrid multiscale modeling of multicomponent adsorption for ECBM Enhanced Coalbed Methane Recovery
DESCRIPTION:Models of multicomponent transport are important for the design of ECBM, as one of the carbon sequestration models, or for natural gas production. The models combine conservation laws and nonlinear isotherms, multiple scales and subscale diffusion related to the presence of macro-, meso- and micro-pores, as well as (compressible) pressure solver. In the talk we focus on the first part, of hyperbolic conservation laws with theremodynamically consistent isotherms.Multicomponent gas adsorption isotherms are usually obtained by parameter fitting of experimental data to algebraic models extending single component isotherms. However, these may not necessarily satisfy Gibbs adsorption law. A thermodynamically consistent approach is Ideal Adsorbate Solution theory but it is implicit and difficult to analyze. Furthermore, single component adsorption isotherms are needed to account, e.g., for hysteresis, extending e.g., Langmuir algebraic formulas. We present an approach involving statistical mechanics (Metropolis and the Mean Field Equilibrium approach) which is combined via IAS. Recent analysis of the hyperbolicity of the resuting system as well as numerical simulations will be presented.
DTSTART;TZID=Europe/Berlin:20161115T160000
DTEND;TZID=Europe/Berlin:20161115T173000
LOCATION:Pfaffenwaldring 61, Raum U1.003 (MML), Universität Stuttgart, , , , 
URL;VALUE=URI:https://www.iws.uni-stuttgart.de/en/institute/events/a5fd4bea-4705-11e9-b79f-000e0c3db68b/
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