Thermal conductivity of liquid mixtures of benzene and 2,2,4-trimethylpentane at pressures up to 350 MPa

Mensah-Brown, Henry; Wakeham, W. A.

doi:10.1007/bf01439250

Cited by 24 publications

(26 citation statements)

References 21 publications

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“…9, with the original fits [1,5]. More- [39] 253-310 20 29 --over, employing Eq. 9 made fitting procedures much easier-only two constants now represent the characteristic molar volume.…”

Section: Discussionmentioning

confidence: 99%

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Correlation and Prediction of Dense Fluid Transport Coefficients. VIII. Mixtures of Alkyl Benzenes with Other Hydrocarbons

et al. 2009

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The aim of this article is to examine the application of the hard-sphere scheme to the prediction of the viscosity and thermal conductivity of hydrocarbon mixtures, other than n-alkane mixtures. According to this scheme, mixture properties are calculated from the pure components properties. Hence these are obtained first. Furthermore, in addition to the temperature, the density is the important parameter rather then the pressure. A Tait-type equation is employed to successfully correlate the density of the pure liquids. Furthermore, in the first part of this article, a modified form of the equation proposed by Sun and Teja is employed in the scheme, to correlate the viscosity and thermal conductivity of pure alkyl benzenes, some alkanes, some cycloalkanes, and one naphthalene. Following this, the article focuses on the successful prediction of the viscosity and thermal conductivity of mixtures of these compounds.

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“…9, with the original fits [1,5]. More- [39] 253-310 20 29 --over, employing Eq. 9 made fitting procedures much easier-only two constants now represent the characteristic molar volume.…”

Section: Discussionmentioning

confidence: 99%

“…The experimental data [1,5,[37][38][39][40] employed for the calculation of L o and L 1 are shown in Table 7, together with the experimental temperature ranges and maximum pressures Table 6 Roughness factor R η , coefficients D i of Eq. 9 and coefficients L i of Eq.…”

Section: Pure Liquid Thermal Conductivitymentioning

confidence: 99%

Correlation and Prediction of Dense Fluid Transport Coefficients. VIII. Mixtures of Alkyl Benzenes with Other Hydrocarbons

et al. 2009

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“…The sequence of experiments with the volumometer at each composition commenced at the lowest temperature and progressed sequentially to the highest. All measurements with the volumometer commenced with the bellows fully extended at atmospheric pressure; after temperature equilibrium was established the pressure was then raised to the highest working pressure (which was chosen to be less than the expected freezing pressure of the fluid [1 ]) and then lowered progressively after each measurement. Temperatures were controlled to +0.003 K and were measured with an accuracy of _+0.01 K with a calibrated platinum resistance thermometer.…”

Section: Methodsmentioning

confidence: 99%

“…orientational correlations varying with composition. The present work was done primarily to enable estimation of densities for measurements of the thermal conductivity in this system at three compositions by MensahBrown and Wakeham [1 ]. The opportunity was taken to extend to higher pressures and temperatures some previous measurements for 2,2,4-trimethylpentane [2] and to obtain accurate volumetric data for benzene.…”

Section: Introductionmentioning

confidence: 99%

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Volumetric measurements under pressure for 2,2,4-trimethylpentane at temperatures up to 353.15 K and for benzene and three of their mixtures at temperatures up to 348.15 K

Malhotra

Woolf

1993

Int J Thermophys

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p, V, T) data have been obtained in the form of volume ratios relative to 0.1 MPa for benzene (298.15 to 348.15K), 2,2,4-trimethylpentane (TMP) (313.15 to 353.15 K), and their mixtures near 0.25, 0.5, and 0.75 mole fraction of benzene (313.15 to 348.15 K) for pressures up to near the freezing pressures for benzene and the mixtures, and up to 400 MPa for TMP. Isothermal compressibilities xx, isobaric expansivitie ~, changes in heat capacity at constant pressure ACp, and excess molar volumes V E have been determined from the data. Literature data at atmospheric pressure have been used to convert the ACp to Cp at several temperatures. The isobars for ~ over the temperature range 278.15 to 353.15 K for TMP intersect near 47 MPa and reverse their order in temperature when plotted against pressure; normalization of the ~'s by dividing the values at each temperature by the ~ at 0.1 MPa prevents both the intersection and the reversal of the order. The V E are positive and have an unusual dependence on pressure: they increase with temperature and pressure so that the order of the curves for 0.1, 50, and 100 MPa changes in going from 313.15 to 348.15 K.

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Thermal conductivity of water and 2-n-butoxyethanol and their mixtures in the temperature range 305?350 K at pressures up to 150 MPa

Mensah-Brown

Wakeham

1995

Int J Thermophys

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The therlnal conductivily of binary liquid mixtures of water and 2-n-buloxyethanol has been measured widfin the temperature range 3()5 35~) K at pressures t,p IO 150 MPa. The measurements have been carried out with it lransienl hotwire mslrument st,ilable Ibr eleclrieally condt, ctmg liquids and have an estimated accuracy of _+0.3".. The liquid mixture h~,s a closed-loop soluhilily and reveals a lower crilical solution tenlperalure Ibr a mole fraction of 2-1t-buloxyetham,[ of (l.I)47,R at a temperature of 322.25 K. The results of the measurements reveal a SlllilJJ, hi.l| discernible, enhancement of Ihe thermal conductivity o1 the solulion ill tile cri|ical composition.

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Thermal conductivity of liquid mixtures of benzene and 2,2,4-trimethylpentane at pressures up to 350 MPa

Cited by 24 publications

References 21 publications

Correlation and Prediction of Dense Fluid Transport Coefficients. VIII. Mixtures of Alkyl Benzenes with Other Hydrocarbons

Correlation and Prediction of Dense Fluid Transport Coefficients. VIII. Mixtures of Alkyl Benzenes with Other Hydrocarbons

Volumetric measurements under pressure for 2,2,4-trimethylpentane at temperatures up to 353.15 K and for benzene and three of their mixtures at temperatures up to 348.15 K

Thermal conductivity of water and 2-n-butoxyethanol and their mixtures in the temperature range 305?350 K at pressures up to 150 MPa

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