Crossover SAFT equation of state for pure supercritical fluids

被引：32
|
作者：
Hu, ZQ [1 ]
Yang, JC [1 ]
Li, YG [1 ]
机构：
[1] Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China
来源：
FLUID PHASE EQUILIBRIA | 2003年 / 205卷 / 01期
关键词：
crossover theory; equation of state; statistical associating fluid theory; supercritical fluids; thermodynamic properties; vapor-liquid equilibrium;
D O I：
10.1016/S0378-3812(02)00091-2
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A crossover statistical associating fluid theory (SAFT) equation of state (EOS) is used to fit the parameters of eight common pure supercritical fluids (water, ammonia, carbon dioxide, R134a, ethane, propane, ethene and propene) and calculate their thermodynamic properties. Over a wide range including the critical region, the EOS reproduces the saturated pressure data with an average absolute deviation (AAD) of about 1% and the saturated densities with an AAD of about 2%. In the one-phase region, the EOS represents the experimental values of pressure with an AAD of about 1-3%. The results are satisfactory. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码：1 / 15
页数：15
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