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Viscosities of fatty acid esters: A study on various semi-empirical models

摘要:The viscosity information of fatty acid esters (FAEs) is crucial for the utilization of biodiesels. In order to accurately describe the viscosity of fluids, researchers have developed several semi-empirical models, but their different performance for FAEs has not been thoroughly discussed. This work focuses on a comprehensive comparison of several popular semi-empirical viscosity methods, including the absolute rate theory (AR), free-volume (FV), hard-sphere (HS), friction theory (FT), and entropy scaling (ES) models. Three equations of state (EoS), namely SRK, CPA, and PC-SAFT, are also selected, which represent the thermodynamic methods with varying levels of complexity and accuracy. Then, the density and viscosity of 14 saturated FAEs and 4 mixtures are calculated using the five viscosity models coupled with three EoS, and the influence of EoS performance on the viscosity results is analyzed. Special attention is paid to the viscosity models and the SRK EoS, to test the calculated viscosities with such a simple EoS. At last, considering both simplicity and accuracy, the AR and FV models can give the best overall performance for calculating the viscosity of FAE systems, and the FT model is also a potential approach. 漏 2024 Elsevier B.V.

ISSN号:0167-7322

卷、期、页:卷400

发表日期:2024-04-15

影响因子:0.000000

期刊分区(SCI为中科院分区):二区

收录情况:SCI(科学引文索引印刷版),EI(工程索引),SCIE(科学引文索引网络版)

发表期刊名称:Journal of Molecular Liquids

参与作者:何茂刚,杨焘

通讯作者:甘为,伍姿霖

第一作者:朱晨阳,陈光进

论文类型:期刊论文

论文概要:朱晨阳,甘为,伍姿霖,陈光进,何茂刚,杨焘,Viscosities of fatty acid esters: A study on various semi-empirical models,Journal of Molecular Liquids,2024,卷400

论文题目:Viscosities of fatty acid esters: A study on various semi-empirical models

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