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Habibi, Hossein; Hekmat-Nazemi, Ali; Kamran-Pirzaman, Arash; Mohammadi, Amir H.
Journal of molecular liquids, August 2016, 2016-08-00, Letnik: 220Journal Article
Friction (f) theory is one of the methods for modeling viscosity of fluids. According to this theory, the viscosity of a fluid is obtained from dilute gas viscosity, and the viscosity of the residual friction. The residual friction is included in the van der Waals attraction and repulsive terms, which are calculated with an equation of state (EOS). In this study, we examined the capability of combining the CPA (Cubic-Plus-Association) Equation of State with the f-theory for estimating viscosity of different alcohols (methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 1-pentanol and 1-octanol). Also, worth noting that CPA f-theory model performance, compared to PR ƒ-theory and SRK ƒ-theory models, shows better results. For the CPA ƒ-theory model, the overall absolute average deviation (overall AAD) for 2B scheme is approximately equal to 0.54% and for the 3B scheme, it is approximately equal to 0.45%, while the overall AAD for PR ƒ-theory model is approximately equal to 1.13% and for the SRK ƒ-theory model is approximately equal to 1.15%. •The capability of combining the CPA EOS with the f-theory is examined for estimating viscosity of alcohols.•Methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 1-pentanol and 1-octanol are studied in this work.•The CPA f-theory model yields better results in comparison with the SRK f-theory and PR f-theory models.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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