Viscosity Model of the Mixture of CO2 Expanded System

被引：0

作者：

Zhang Y. ^{[1
]}

Jia X. ^{[1
]}

Wang X. ^{[1
]}

机构：

[1] Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an

来源：

Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2019年 / 53卷 / 09期

关键词：

CO[!sub]2[!/sub] expanded system; Eyring-NRTL viscosity model; Gas-liquid mixture;

D O I：

10.7652/xjtuxb201909019

中图分类号：

学科分类号：

摘要：

Due to the low accuracy of the existing models for calculating the mixture viscosity of CO2 expanded systems, the experimental viscosity data of 7 different CO2 expanded liquids were collected from the literatures, the studied mixtures include CO2/n-decane, CO2/n-tetradecane, CO2/n-octane, CO2/methanol, CO2/ethanol, CO2/1-propanol, and CO2/acetone. Based on these viscosity data, an improved Eyring-NRTL viscosity model was established. The binary interaction parameter in the model was considered as a function of effective molar mass of the mixture, and the corresponding coefficients were obtained based on the regression of the literature data. Results show that the average relative deviation between the calculated viscosity values and the data from literatures is lower than 3% for CO2/n-dencane system (except at the temperature of 310.93 K) and 4% for other CO2 expanded liquids, and compared with other viscosity models, the improved model is suitable for CO2 expanded liquids. © 2019, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.

引用

页码：145 / 149and166

共 17 条

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