Search results
Results from the WOW.Com Content Network
Fluid Phase Equilibria is a peer-reviewed scientific journal on physical chemistry and thermodynamics that is published by Elsevier.The articles deal with experimental, theoretical and applied research related to properties of pure components and mixtures, especially phase equilibria, caloric and transport properties of fluid and solid phases.
VTPR (short for Volume-Translated Peng–Robinson) [1] [2] is an estimation method for the calculation of phase equilibria of mixtures of chemical components. The original goal for the development of this method was to enable the estimation of properties of mixtures which contain supercritical components.
In some cases a better phase equilibria description is obtained by setting =. [7] However this mathematical solution is impossible from a physical point of view, since no system can be more random than random (=0). In general NRTL offers more flexibility in the description of phase equilibria than other activity models due to the extra non ...
Today the UNIQUAC model is frequently applied in the description of phase equilibria (i.e. liquid–solid, liquid–liquid or liquid–vapor equilibrium). The UNIQUAC model also serves as the basis of the development of the group contribution method UNIFAC, [3] where molecules are subdivided into functional groups. In fact, UNIQUAC is equal to ...
Thermodynamic modelling is a set of different strategies that are used by engineers and scientists to develop models capable of evaluating different thermodynamic properties of a system. At each thermodynamic equilibrium state of a system, the thermodynamic properties of the system are specified. Generally, thermodynamic models are mathematical ...
Statistical associating fluid theory (SAFT) [1] [2] is a chemical theory, based on perturbation theory, that uses statistical thermodynamics to explain how complex fluids and fluid mixtures form associations through hydrogen bonds. [3] Widely used in industry and academia, it has become a standard approach for describing complex mixtures.
PSRK (short for Predictive Soave–Redlich–Kwong) [1] is an estimation method for the calculation of phase equilibria of mixtures of chemical components. The original goal for the development of this method was to enable the estimation of properties of mixtures containing supercritical components.
where is the liquid phase composition with molfraction for fluid component i, and and are the gas phase and total fluid compositions, respectively. For a non-Newtonian fluid (in the sense of a generalized Newtonian fluid ), the constitutive equation for shear viscosity is also a function of the shear velocity gradient: