Quintic equation of state for pure substances in sub- and supercritical range

被引：7
作者：
Koziol, Antoni [1 ]
机构：
[1] Wroclaw Univ Technol, Fac Chem, Div Chem & Biochem Proc, PL-50373 Wroclaw, Poland
来源：
FLUID PHASE EQUILIBRIA | 2008年 / 263卷 / 01期
关键词：
equation of state; vapour-liquid equilibria; polar and non-polar substances;
D O I：
10.1016/j.fluid.2007.09.012
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A new quintic equation of state (EOS) for pure substances and mixtures is proposed. The equation is based on critical parameters and one saturation point. The proposed Q5EOS is a generalisation of many cubic equations of state. Equation Q5 has five parameters, four of which are temperature-independent. The temperature-dependent parameter a is expressed by a relation based on a simple power function. Parameters defining this function can be calculated from saturation data, Boyle temperature and supercritical data. (c) 2007 Elsevier B.V. All rights reserved.
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页码：18 / 25
页数：8
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