Generalized corresponding states method for the viscosities of liquid mixtures

Teja, Amyn S.; Rice, P.

doi:10.1021/i100001a015

Cited by 314 publications

(190 citation statements)

References 3 publications

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“…El-Sayed [11] used the corresponding state temperature to evaluate the liquid viscosity and thermal conductivity; however for the vapor viscosity and thermal conductivity, the mixture temperature and pressure were used. The corresponding state temperature was also used by Teja and Rice [19] for the estimation of liquid viscosity. Similarly, Conde-Petit [1] proposed the same corresponding temperature approach in his interpolation scheme, however again only for liquid transport properties.…”

Section: Transport Propertiesmentioning

confidence: 99%

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An Assessment of Transport Property Estimation Methods for Ammonia–Water Mixtures and Their Influence on Heat Exchanger Size

et al. 2015

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Transport properties of fluids are indispensable for heat exchanger design. The methods for estimating the transport properties of ammonia-water mixtures are not well established in the literature. The few existent methods are developed from none or limited, sometimes inconsistent experimental data sets, conducted for the liquid phase only. These data sets are usually confined to low concentrations and temperatures, which are much less than those occurring in Kalina cycle boilers. This paper presents a comparison of various methods used to estimate the viscosity and the thermal conductivity of ammonia-water mixtures. Firstly, the different methods are introduced and compared at various temperatures and pressures. Secondly, their individual influence on the required heat exchanger size (surface area) is investigated. For this purpose, two case studies related to the use of the Kalina cycle are considered: a flue-gas-based heat recovery boiler for a combined cycle power plant and a hot-oil-based boiler for a solar thermal power plant.The different transport property methods resulted in larger differences at high pressures and temperatures, and a possible discontinuous first derivative, when using the interpolative methods in contrast to the corresponding state methods. Nevertheless, all possible mixture transport property combinations used herein resulted in a heat exchanger size within 4.3 % difference for the flue-gas heat recovery boiler, and within 12.3 % difference for the oil-based boiler.

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Section: Transport Propertiesmentioning

confidence: 99%

“…It uses mixture temperature and composition directly, thus the pure component viscosities are not required. The fourth method is a modified version of the Teja and Rice [19] method as used by Stecco and Desideri [6] (Eq. 10).…”

Section: Liquid Viscositymentioning

confidence: 99%

An Assessment of Transport Property Estimation Methods for Ammonia–Water Mixtures and Their Influence on Heat Exchanger Size

et al. 2015

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“…The application of corresponding-states models extends from equilibrium properties such as vapor pressure [24][25][26][27][28], liquid density [11,26,[28][29][30], or surface tension [12,13,15,16,26,31,32] to transport properties such as viscosity [11,26,[33][34][35][36] and thermal conductivity [14,26,[37][38][39].…”

Section: Corresponding-states Principlementioning

confidence: 99%

Corresponding-States Modeling of the Speed of Sound of Long-Chain Hydrocarbons

Queimada

Coutinho²,

Marrucho³

et al. 2006

Int J Thermophys

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Models based on the corresponding-states principle have been extensively used for several equilibrium and transport properties of different pure and mixed fluids. Some limitations, however, have been encountered with regard to its application to long chain or polar molecules. Following previous studies, where it was shown that the corresponding-states principle could be used to predict thermophysical properties such as vapor-liquid interfacial tension, vapor pressure, liquid density, viscosity, and thermal conductivity of longchain alkanes, the application of the corresponding-states principle to the estimation of speeds of sound, with a special emphasis on the less studied heavier n-alkane members, is presented. Results are compared with more than four thousand experimental data points as a function of temperature and pressure for n-alkanes ranging from ethane up to n-hexatriacontane. Average deviations are less than 2%, demonstrating the reliability of the proposed model for the estimation of speeds of sound.

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“…The application of corresponding states models extends from equilibrium properties such as vapor pressure [12][13][14][15][16], liquid density [14,[16][17][18], or surface tension [4,5,14,19,20] to transport properties such as viscosity [2,14,[21][22][23][24] and thermal conductivity [14,[25][26][27].…”

Section: Corresponding States Principlementioning

confidence: 99%

Modeling the Thermal Conductivity of Pure and Mixed Heavy n-Alkanes Suitable for the Design of Phase Change Materials

et al. 2005

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Recent interest in the use of paraffin waxes is related to energy management provided by phase change materials (PCMs) where a tunable melting temperature range is used to store or release latent heat by means of the solid-liquid phase change. Thermal conductivity is an essential property for the correct design of these new materials, with applications as different as household heating and insulation, clothes for athletes and campers, or solar energy storage. As the interest in most of these heavier n-alkanes was small until recently, the available data are particularly limited. The purpose of this work was to develop a simple and accurate model to estimate the liquid thermal conductivity of heavy n-alkanes suitable for the design of efficient PCMs. Corresponding states theory was selected, based on previous improvements for equilibrium and transport properties of pure and mixed heavy n-alkanes, using a second-order perturbation model on the Pitzer acentric factor. Results for the n-alkane series show that this new model is able to predict thermal conductivities in a broad temperature and pressure range with a deviation of 3%, whereas common deviations using a linear perturbation model are close to 16%. Results for one ternary and five binary mixtures indicate that the extension to mixtures is straightforward with the best results obtained using a mixing rule previously proposed for viscosity.

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Generalized corresponding states method for the viscosities of liquid mixtures

Cited by 314 publications

References 3 publications

An Assessment of Transport Property Estimation Methods for Ammonia–Water Mixtures and Their Influence on Heat Exchanger Size

An Assessment of Transport Property Estimation Methods for Ammonia–Water Mixtures and Their Influence on Heat Exchanger Size

Corresponding-States Modeling of the Speed of Sound of Long-Chain Hydrocarbons

Modeling the Thermal Conductivity of Pure and Mixed Heavy n-Alkanes Suitable for the Design of Phase Change Materials

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