Correlation and prediction of ionic liquid viscosity using Valderrama-Patel-Teja cubic equation of state and the geometric similitude concept. Part I: Pure ionic liquids

Valderrama, José O.; Cardona, Luis F.; Rojas, Roberto E.

doi:10.1016/j.fluid.2019.04.031

Cited by 34 publications

(61 citation statements)

References 41 publications

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“…In our previous works, the effect of different anions, 17 different alkyl group sizes of the cation and different pressures 18 were considered over the non-newtonian behavior of ILs. High pressure not only increases the density and the zero shear viscosity [34][35][36] but also makes the shear thinning starts at smaller shear rates than at room pressure for both ILs and simple molecular liquids, 18 so a similar effect is also expected for the molecular mimics. The effects of the density and ionic interactions over equilibrium (zero shear) structure and properties of the IL will be discussed in Section C.1 while their effects at high shear rates will be discussed in Section C.2.…”

Section: A Introductionmentioning

confidence: 81%

Role of density and electrostatic interactions in the viscosity and non-newtonian behavior of ionic liquids – a molecular dynamics study

Bernardino

Ribeiro

2022

Phys. Chem. Chem. Phys.

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Section: A Introductionmentioning

confidence: 81%

Role of density and electrostatic interactions in the viscosity and non-newtonian behavior of ionic liquids – a molecular dynamics study

Bernardino

Ribeiro

2022

Phys. Chem. Chem. Phys.

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“…If the shape of the curves in these plots are similar for all properties, then it is reasonable to assume that an equation that is capable of representing the relationship between the variable pressure, density, and temperature, such as the equation of state (ρ TP ), will also be capable of representing similar variables for other properties such as viscosity, thermal conductivity, surface tension, and speed of sound (μ TP , kTP , σ TP , and sTP plots). Although any equation of state could be used, the generalized three-parameter model proposed by one of the authors, known as the VPT equation of state was the equation chosen for applying the similitude concept. − …”

Section: Properties Includedmentioning

confidence: 99%

A Simple Computer Tool for Simultaneously Estimating Critical, Transport, Physicochemical, and Phase Change Properties of Ionic Liquids

Valderrama¹,

Cardona

Rojas

2021

Ind. Eng. Chem. Res.

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A simple computer tool based on MS Excel for estimating several physical, transport, and thermodynamic properties is presented. The properties included in the software are critical properties (T c, P c, V c, and Z c), normal boiling temperature, acentric factor, density, heat capacity, thermal conductivity, viscosity, surface tension, speed of sound, melting temperature, and heat of melting. Different types of models previously proposed by the authors are used and the limitations of each model are clearly stated. These models include group contributions, semiempirical correlations, equations of state, and the geometric similitude equation of state concept. The calculations provided by the software do not aim to replace experimental data but help in obtaining a good estimate before going to the lab to experimentally measure a given property. The software is available free of charge and can be modified for particular applications.

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“…Ejemplos de este tipo de modelos son aquellos desarrollados por Bonyadi et al (2017) y Cardona et al (2019a). Recientemente, Valderrama et al (2019) han utilizado este concepto para realizar predicciones de la viscosidad dinámica en líquidos iónicos con desviaciones inferiores de 5.60%. Sin embargo, estos modelos tienen un gran número de parámetros y son aplicables para una familia orgánica en específica.…”

Section: Introductionunclassified

Modelamiento de la viscosidad dinámica de sustancias puras a partir de la teoría de entropía residual

2021

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El propósito de este trabajo es desarrollar un modelo para la estimación de la viscosidad dinámica de fluidos Newtonianos en la curva de coexistencia líquido y vapor de sustancias no-polares y polares a partir de la teoría de entropía residual. Se utiliza una versión modificada de la ecuación de estado de Peng-Robinson. Se estudian 116 sustancias puras y el agua (67 sustancias para la correlación y 49 sustancias para la predicción). El modelo se generaliza para 12 familias orgánicas a partir de una función lineal en términos de la temperatura normal de ebullición. El intervalo de temperatura varía entre 104.81 K y 565.48 K y presión entre 0.01 kPa y 3618.69 kPa. Las desviaciones absolutas promedio para la viscosidad obtenidas en la correlación y predicción son menores de 6.38% y 11.36%, respectivamente. El modelo generalizado se valida frente a otros desarrollados en la literatura y los resultados obtenidos permiten concluir que el modelo propuesto es simple y proporciona resultados aceptables.

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Correlation and prediction of ionic liquid viscosity using Valderrama-Patel-Teja cubic equation of state and the geometric similitude concept. Part I: Pure ionic liquids

Cited by 34 publications

References 41 publications

Role of density and electrostatic interactions in the viscosity and non-newtonian behavior of ionic liquids – a molecular dynamics study

Role of density and electrostatic interactions in the viscosity and non-newtonian behavior of ionic liquids – a molecular dynamics study

A Simple Computer Tool for Simultaneously Estimating Critical, Transport, Physicochemical, and Phase Change Properties of Ionic Liquids

Modelamiento de la viscosidad dinámica de sustancias puras a partir de la teoría de entropía residual

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