氟利昂体系汽液平衡二元相互作用参数的普遍化关联  

Generalized Correlation of Binary Interaction Parmeters for Vapor liquid Equilibria of Freon and its Substitutions

作　　者：丁志[1] 冯耀声[1] 吴兆立[1] 

机构地区：[1]浙江大学化工系

出　　处：《高校化学工程学报》1997年第4期349-354,共6页Journal of Chemical Engineering of Chinese Universities

基　　金：国家自然科学基金

摘　　要：用ＭＨ（８１）方程关联了十一个氟利昂体系的等温汽液平衡数据，得出其二元相互作用参数，关联结果同实验符合良好。根据分子热力学的基本原理，加上一些经验的关联，提出了一个四常数的关联式来关联氟利昂混合物的ＭＨ（８１）方程二元相互作用参数，利用关联结果推算了ＤＭＥ／Ｒ１５２ａ体系在２８３．３１Ｋ、２９３．８４Ｋ、Ｒ２３／Ｒ２２在２５８．１５Ｋ和Ｒ３２、Ｒ１５２ａ在２７３．１５Ｋ的等温汽液平衡，与实验数据进行对照吻合良好，表明此式有相当程度的预测性，在氟利昂替代物的预选和工程计算中有重要的实际应用价值。The MH(81) equation of state was applied to describe the vapor liquid equilibrium behavior and its binary interaction parameter Q ij  is determined from the experimental equilibrium data of 11 binary mixtures of refrigerants over a wide range of temperature and pressure. The results show a good agreement with the experimental data. To correlate (1 Q ij ) with its constituents, a four parameters function was obtained by using the knowledge of molecular thermodynamic and the empirical methods. The correlation has been applied to predict the vapor liquid equilibrium data of DME/R152a at 283.31K 293.84K; R23/R22 at 258.15K and R32/R152a at 273.15K. The calculated results show a good agreements with the experimental values. Following those studies, the calculation technique for Q ij  obtained here is thought to be useful in evaluating and selecting the working of freon mixtures.

关 键 词：氟利昂替代物 汽液平衡 相互作用参数 制冷剂 

分 类 号：TB64[一般工业技术—制冷工程]