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Phase Changes during Transport of Carbon Dioxide

Abstract : This paper concerns the modeling of possible carbon dioxide (CO2) phase changes during its transport, between its capture and storage. Due to a future potential market, the transportation of CO2 in pipelines is more and more studied, for the operating conditions can vary significantly, causing thermodynamical and rheological properties modifications and possible phase changes. This study is a first attempt to model such a flow in real configurations with transient conditions. A one-fluid homogeneous equilibrium model (HEM) is used, where all the phases are supposed to be in mechanical and thermodynamical equilibrium, and turbulence effects are added thanks to a RANS approach. A 3D geometry is considered in the present work, consisting in the junction between two streams having different initial conditions. The key factors to be studied are the overall and local pressure fields, together with the evolution of the gaseous phase. © 2017 CURRAN-CONFERENCE. All rights reserved.
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Submitted on : Saturday, June 22, 2019 - 12:03:40 PM
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Erwin Franquet, Jacques Mercadier, Pierre Cézac. Phase Changes during Transport of Carbon Dioxide. 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2017, 2017, San Diego, United States. ⟨hal-02162744⟩

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