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Thermophysical properties of ionic liquids and binary mixtures containing them – An overview
Součková, Monika ; Pátek, Jaroslav ; Klomfar, Jaroslav
The report provides a comprehensive review of literature sources of experimental data on the thermophysical properties of ionic liquids, a novel class of materials with a wide range of applications. The literature search was focused on pure ionic liquids as well as on the binary mixtures containing them. The following thermophysical properties have been included into the study: density, isobaric heat capacity, speed of sound, surface tension, vapor-liquid equilibrium pressures, solid-liquid phase transition temperatures, viscosity, electrical conductivity, refractive index, activity coefficients, and decomposition temperatures. The results of the search are presented in the form of synoptic tables. The reference list of bibliography contains 97 items.
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Measurement and prediction of the transport properties of natural gases
Čapla, L. ; Buryan, P. ; Pátek, Jaroslav ; Klomfar, Jaroslav
Measurements of the thermal conductivity of two samples of natural gases performed with a transient hot-wire apparatus are reported. The prediction method for the thermal conductivity of gas mixtures suggested by Stiel and Thodos is tested against the obtained experimental data. The deviations of the experimental thermal conductivities form their calculated values lie within the band from ?2% to 2.5% in the temperature and pressure region relevant for natural gas transport.
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Prediction of the transport properties of multicomponent dense gas mixtures
Pátek, Jaroslav ; Klomfar, Jaroslav
An implementation of the Thorne-Enskog equation for the evaluation of the thermal conductivity and viscosity of high-density fluid mixture is presented. The method is based upon the rigid-sphere model of the fluid mixture suitably interpreted to apply real fluids. The procedure requires the knowledge of the transport properties of the pure component gases at igh density, the zero-density values of the transport properties both for the pure components and for their binary mixtures.
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