Brown, S; Peristeras, LD; Martynov, S; Porter, RTJ; Mahgerefteh, H; Nikolaidis, IK; Boulougouris, GC; ... Economou, IG; + view all Brown, S; Peristeras, LD; Martynov, S; Porter, RTJ; Mahgerefteh, H; Nikolaidis, IK; Boulougouris, GC; Tsangaris, DM; Economou, IG; - view fewer (2016) Thermodynamic interpolation for the simulation of two-phase flow of non-ideal mixtures. Computers and Chemical Engineering , 95 pp. 49-57. 10.1016/j.compchemeng.2016.09.005.

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Abstract

This paper describes the development and application of a technique for the rapid interpolation of thermodynamic properties of mixtures for the purposes of simulating two-phase flow. The technique is based on adaptive inverse interpolation and can be applied to any Equation of State and multicomponent mixture. Following analysis of its accuracy, the method is coupled with a two-phase flow model, based on the homogeneous equilibrium mixture assumption, and applied to the simulation of flows of carbon dioxide (CO2) rich mixtures. This coupled flow model is used to simulate the experimental decompression of binary and quinternary mixtures. It is found that the predictions are in good agreement with the experimental data and that the interpolation approach provides a flexible, robust means of obtaining thermodynamic properties for use in flow models.

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