Simplified Model for the Critical Thermal-Conductivity Enhancement in Molecular Fluids

Perkins, Robert L.; Sengers, J. V.; Abdulagatov, Ilmutdin M.; Huber, Marcia L.

doi:10.1007/s10765-013-1409-z

Cited by 92 publications

(79 citation statements)

References 88 publications

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“…The critical contribution is computed using a simplified crossover model developed by Olchowy and Sengers (16), and later generalized (17) so that it may be used knowing only Tc, ρc, pc, the acentric factor ω, and the molar mass of the component. Details of the equations can be found in Ref.…”

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confidence: 99%

“…Liquid-phase data of Watanabe and Kato (25), Bachmann (26), Rastorguev and Pugach (27), and Mukhamedzyanov and Usmanov (28) were used to obtain the coefficients in Table 4. Parameters for the critical enhancement term are given in Table 5, these were obtained by the predictive method of Perkins et al (17) since critical-region data were unavailable for regression. In fact, we have used the predictive methods of Perkins et al (17) for all of the fluids in this study to obtain the coefficients in Table 5.…”

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confidence: 99%

“…Parameters for the critical enhancement term are given in Table 5, these were obtained by the predictive method of Perkins et al (17) since critical-region data were unavailable for regression. In fact, we have used the predictive methods of Perkins et al (17) for all of the fluids in this study to obtain the coefficients in Table 5. The liquid phase data ranged from 257 K to 433 K but are all at atmospheric pressure.…”

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confidence: 99%

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Preliminary models for viscosity, thermal conductivity, and surface tension of pure fluid constituents of selected diesel surrogate fuels

Huber¹

2017

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We describe preliminary models for the viscosity, thermal conductivity, and surface tension for pure fluids that are constituents of four surrogate fuels for ultralow-sulfur diesel fuels developed under the auspices of the Coordinating Research Council (CRC). These fluids do not presently have published reference fluid quality models in the open literature, so we provide here preliminary models based on available data as an interim measure to allow calculations of these properties for both the pure fluids and the four surrogate mixtures. Comparisons with selected experimental pure-fluid data are given, and text files compatible with the NIST REFPROP computer program are included as supplementary material. We also present tabulations of the viscosity, thermal conductivity, and surface tension along the bubble point for four surrogate fuels.

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Preliminary models for viscosity, thermal conductivity, and surface tension of pure fluid constituents of selected diesel surrogate fuels

Huber¹

2017

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“…17-19 were fit with ODRPACK [43] to the primary data for the thermal conductivity with the dilute-gas term subtracted. The crossover model requires the universal constants [32,55] R D = 1.02, ν = 0.63, and γ = 1.239, and system-dependent amplitudes Γ and ξ 0 that are estimated using the method presented by Perkins et al [55]. In Eq.…”

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confidence: 99%

“…In Eq. 20, the reference temperature, T ref = 1.5 T c , was selected to be larger than the critical temperature where the critical enhancement is negligible as recommended by Perkins et al [55].…”

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Reference correlations for the viscosity and thermal conductivity of fluids over an extended range of conditions: hexane in the vapor, liquid, and supercritical regions (IUPAC Technical Report)

Perkins

Huber

Assael

et al. 2015

Pure and Applied Chemistry

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This article summarizes the correlation procedures developed for IUPAC Project 2012-040-1-100 [Reference correlations for the thermal conductivity and viscosity of fluids over extended range of conditions (vapor, liquid and supercritical regions)]. This project is focused on the development of wide-range reference correlations for the thermal conductivity and viscosity of fluids that incorporate as much theoretical knowledge of these properties as possible. The thermal conductivity and viscosity correlations developed here for pure fluids are functions of temperature and density. The best available equations of state for a given fluid are used to calculate the thermodynamic properties required for these correlations, often from measured temperatures and pressures. The correlation methodology developed during this project has been applied to hexane in this report but can be applied to any pure fluid with a reliable equation of state and reliable data for the thermal conductivity and viscosity over a significant range of temperatures and densities.

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A Note on the Critical Enhancement of Transport Properties and Correlation Length of Fluids

Perkins

Sengers

2013

Int J Thermophys

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Simplified Model for the Critical Thermal-Conductivity Enhancement in Molecular Fluids

Cited by 92 publications

References 88 publications

Preliminary models for viscosity, thermal conductivity, and surface tension of pure fluid constituents of selected diesel surrogate fuels

Preliminary models for viscosity, thermal conductivity, and surface tension of pure fluid constituents of selected diesel surrogate fuels

Reference correlations for the viscosity and thermal conductivity of fluids over an extended range of conditions: hexane in the vapor, liquid, and supercritical regions (IUPAC Technical Report)

A Note on the Critical Enhancement of Transport Properties and Correlation Length of Fluids

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