Augmented van der Waals equations of state: SAFT-VR versus Yukawa based van der Waals equation

作者：Nezbeda Ivo^*; Melnyk Roman; Trokhymchuk Andrij

来源：Fluid Phase Equilibria, 2011, 309(2): 174-178.

DOI：10.1016/j.fluid.2011.07.006

• Perturbation theory
• SAFT-VR
• Augmented van der Waals
• Yukawa reference
• Square-well fluid
• Yukawa fluid
• Sutherland fluid

Performance of the SAFT-VR equation of state developed for the hard sphere based simple fluids, namely the square-well, Sutherland and Yukawa fluids, is examined by comparing its results with simulation data and an augmented van der Waals (vdW) equation based on a Yukawa (Y) reference. Its shown that both for the equilibrium vapor-liquid data and data along selected isotherms in the liquid and supercritical fluid phases the vdW(Y) equation provides better results, particularly when going to lower temperatures.

• 出版日期2011-10-25