两种立方型状态方程相平衡推算中相互作用系数的研究进展  

Review of the research on interaction coefficients used in two cubic equations of state for phase equilibria predictions

作　　者：朱洪波[1] 公茂琼[1] 张宇[1] 吴剑峰[1] 

机构地区：[1]中国科学院理化技术研究所

出　　处：《低温工程》2005年第5期7-12,共6页Cryogenics

基　　金：国家自然科学基金(50206024)项目资助

摘　　要：混合制冷剂工质的相互作用系数是混合工质汽液相平衡性质计算中所需的一个重要参数。对两种立方型状态方程混合规则中相互作用系数的研究进展做了回顾,评述了以天然气组分混合物为对象的实验工作中相互作用系数kij的回归方法,关联数值和关联式,寻找提高汽液相平衡推算精度的途径,研究和探索更加精确的预测模型。The interaction coefficient of mixtures is a very important parameter in the vapor and liquid phase equilibria predictions.A review of the research and progress in the interaction coefficient in the mixing rules of SRK and PR equations of state was presented,including the regression method,regressed values and relationship of the interaction coefficient of experiments.All the efforts in this work were made to compare the present methods and to improve the prediction accuracy in the prediction of vapor and liquid phase equilibrium as well as to research a new accurate predicting model and theory.

关 键 词：立方型状态方程 混合制冷剂 相互作用系数 相平衡计算 

分 类 号：TB612[一般工业技术—制冷工程]