烃类混合物的McAllister三体模型通用化  

Generalization of the McAllister Three-body Model for Hydrocarbon Mixtures

作　　者：王小杰[1] 马英杰 李小亭[1] 方立德[1] WANG Xiao-Jie;MA Ying-Jie;LI Xiao-Ting;FANG Li-De(College of Quality and Technical Supervision,Hebei University,Baoding 071002,China)

机构地区：[1]河北大学质量技术监督学院,保定071002

出　　处：《工程热物理学报》2021年第6期1402-1406,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.61475041);科技部重点项目子任务(No.2017YFC0805703);河北大学高层次人才科研启动项目(No.521000981321)。

摘　　要：McAllister三体模型的关联性限制了其拓展应用,本文在搜集文献中14类系列型烃类混合物黏度实验数据的基础上,拟合得到了其模型参数。分析发现,McAllister三体模型的两个待定参数(v12与v21)与等效沸点(T_(bij))及实验温度(T)间存在一定的规律,由此获得了模型参数的定量推算关系,进而建立了一种具有预测同系列烃类混合物黏度的通用化McAllister三体模型。将新模型的计算结果与实验值进行比较表明,对于所有二元体系的总体平均相对偏差为0.79%,最大相对偏差为7.22%。McAllister three-body model is correlative in nature that severely limits its extended application.In this work,the viscosity experimental data of 14 homologous series hydrocarbon mixtures are collected from the literature and the interaction parameters are obtained in this model.Investigation shows the two undetermined coefficients(v12 and v21)in the model exhibit regular trends along with equivalent boiling points(T_(bij))and experimental temperature(T).Thus,the quantitative calculated relationship of the model parameters is obtained and a generalized McAllister three-body model is established for predicting the viscosity of hydrocarbon mixtures.Compared calculated viscosity value with the experimental data that shows the overall average relative deviation for all binary systems is 0.79%and the maximum relative deviation is 7.22%.

关 键 词：烃类物质 McAllister三体模型 黏度预测 模型通用化 

分 类 号：TK121[动力工程及工程热物理—工程热物理]