In this work, the SAFT-VR Mie equation of state is used in conjunction with Dubinin-Radushkevich-Astakhov (DRA) and Steele potentials, according to Multicomponent Potential Theory Adsorption (MPTA), model thermodynamic behavior fluids confined porous media. The problem specifications are temperature, volume, number moles each component, yielding a Helmholtz energy-minimization problem. Calculat...

We present here phase equilibria calculations of polyethylene solutions in different solvents as obtained with two versions of the SAFT equation of state, soft-SAFT and PC-SAFT. The objective of this work is twofold: to check the accuracy of the soft-SAFT equation in providing reliable polymer solutions behavior and to propose a methodology from which systematic studies on polymer solutions can...

We have developed a “global” crossover (GC) statistical associating fluid theory (SAFT) equation of state (EOS) for associating fluids that incorporates nonanalytic scaling laws in the critical region and in the limit of low densities, F f 0, is transformed into the ideal-gas equation EOS. Unlike the crossover SAFT EOS developed earlier, the new GC SAFT EOS contains a so-called kernel term and ...

Molecular Dynamics (MD) simulations of direct and derivative thermodynamic properties of the Mie n-6 fluid (n = 8, 10 and 12) have been performed for liquid to supercritical states. Using the results, has been carried out an in depth test of the monomer-monomer interaction estimation of a recently derived SAFT-VR equation of state (Lafitte et al. J. Chem. Phys., 2006, 124, 024509) based on the ...

In B-mode imaging, lateral resolution is impeded by the size and shape of the ultrasound beam used to create the image. For improved lateral resolution, a focussing method that utilises a beam model calculated using the Fraunhofer far field approximations to enhance the Synthetic Aperture Focussing Technique (SAFT) is proposed. The Beam Model Weighted Synthetic Aperture Focussing Technique (BMW...

A new apparatus for the study of vapor-liquid or vapor-liquid-liquid equilibrium has been assembled. The apparatus, based on a static and analytical method, can perform measurements at temperatures from 185 to 320 K and pressures up to 8 MPa. The equilibrium vapor pressures of (xenon + methane) binary mixtures have been measured at seven temperatures, from 189.78 to 273.18 K, and at pressures u...