Viscosity and Thermal Conductivity of Binary Gas Mixtures: Krypton-Argon, Krypton-Neon, and Krypton-Helium

Thornton, E.

doi:10.1088/0370-1328/77/6/309

Cited by 31 publications

(4 citation statements)

References 11 publications

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“…2, theoretical results obtained for the pair potential of the present work, V tot , are compared with experimental data and values for the pair potentials from the literature. The room temperature data of Thornton, 63 obtained with a modified Rankine capillary viscometer, agree with our values within the estimated experimental uncertainty of 1%. Kestin and coworkers 64,65 determined viscosity values of krypton-helium mixtures by means of relative measurements with oscillatingdisk viscometers.…”

Section: B Viscositysupporting

confidence: 87%

“…3, the theoretical results are compared with the few available experimental data for the thermal conductivity of krypton-helium mixtures. The room-temperature data of Mason and von Ubisch 67 as well as of Thornton 63 are in agreement with the computed values within ±2.1% and ±4.2%, respectively, whereas the results for T = 793.15 K from Ref. 67 deviate by up to 10.4%.…”

Section: Thermal Conductivitysupporting

confidence: 81%

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Thermophysical properties of krypton-helium gas mixtures from ab initio pair potentials

Jäger

Bich

2017

The Journal of Chemical Physics

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A new potential energy curve for the krypton-helium atom pair was developed using supermolecular ab initio computations for 34 interatomic distances. Values for the interaction energies at the complete basis set limit were obtained from calculations with the coupled-cluster method with single, double, and perturbative triple excitations and correlation consistent basis sets up to sextuple-zeta quality augmented with mid-bond functions. Higher-order coupled-cluster excitations up to the full quadruple level were accounted for in a scheme of successive correction terms. Core-core and core-valence correlation effects were included. Relativistic corrections were considered not only at the scalar relativistic level but also using full four-component Dirac-Coulomb and Dirac-Coulomb-Gaunt calculations. The fitted analytical pair potential function is characterized by a well depth of 31.42 K with an estimated standard uncertainty of 0.08 K. Statistical thermodynamics was applied to compute the krypton-helium cross second virial coefficients. The results show a very good agreement with the best experimental data. Kinetic theory calculations based on classical and quantum-mechanical approaches for the underlying collision dynamics were utilized to compute the transport properties of krypton-helium mixtures in the dilute-gas limit for a large temperature range. The results were analyzed with respect to the orders of approximation of kinetic theory and compared with experimental data. Especially the data for the binary diffusion coefficient confirm the predictive quality of the new potential. Furthermore, inconsistencies between two empirical pair potential functions for the krypton-helium system from the literature could be resolved.

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Section: B Viscositysupporting

confidence: 87%

Section: Thermal Conductivitysupporting

confidence: 81%

Thermophysical properties of krypton-helium gas mixtures from ab initio pair potentials

Jäger

Bich

2017

The Journal of Chemical Physics

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“…Johnston and Grilly (37); 0 Kopsch (47); X Rankine (52); V Rietveld et al ( 57); (J Rigby and Smith (58); A Thornton (59)(60)(61)(62)(63)(64)(65)(66)(67); O of the relative accuracy of these two sets of determinations which provide the major body of data on high-temperature viscosities. Both groups of workers used capillary flow methods, The most recent work by Kestin (33,88) on the viscosity of argon and helium has tended to lend some support to the lower values of Da we and Smith (13).…”

Section: Discussionmentioning

confidence: 99%

“…Smith et al (9, 73); Kestin et al (7 5, 33, 39); Flynn et al (20, 24);A Guevara et al(26);Johnston and Grilly(37); 0 Michels et al(47); V Nasinl and Rossi(48); X Ranklne (52); 0 Reynes and Thodos(56);Zi Thornton(59)(60)(61)(62)(63)(64)(65)(66)(67); OTrautz et al (65,76); + Wobser and Muller(8 7) 152 Journal of Chemical and Engineering Data, Vol. 17, No.…”

mentioning

confidence: 99%

Critical reassessment of viscosities of 11 common gases

Maitland¹,

Smith²

1972

J. Chem. Eng. Data

160

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Recommended values of the coefficients of viscosity of 11 common gases (He, Ne, Ar, Kr, Xe, N2, H2, 02, C02, CH4, air) are given over the temperature range for which reliable data exist. A critical reassessment of all available data confirms the recently expressed view that most of the early measurements of high-temperature viscosities are seriously in error (by up to 8% at 1700K). These results have been rejected in favor of more recent data in establishing the values recommended in this paper and estimated to be accurate to 1.0-1.5%.

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The viscosity of nonpolar gas mixtures at moderate and high pressures

Dean¹,

Stiel²

1965

AIChE Journal

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A method has been developed for the calculation of the viscosity of nonpolar gas mixtures a t moderate and elevated pressures from the molecular weights and critical constants of the components. By the use of available experimental data and appropriate pseudocritical constant rules, results obtained previously for the viscosity of pure gases have been extended to mixtures.Viscosity values calculated by the method developed in this study for a number of nonpolar gas mixtures were found to reproduce reported values with a high degree of accuracy.Reliable methods have recently been developed for the prediction of the viscosity of pure substances in the dilute and dense gaseous regions. Similar generalized relationships are not available at present for the calculation of the viscosity of gas mixtures at elevated pressures. Accurate values of this property for gaseous mixtures are required in many important applications. It is apparent that reliance on experimental data for the viscosity values of gaseous mixtures is hopelessly inadequate, because of the wide ranges of composition, temperature, and pressure encountered.Rigorous theoretical expressions are available only for the transport properties of gaseous mixtures at approximately atmospheric pressure. Lee, Starling, Dolan, and Ellington (51 ) have recently presented a semiempirical relationship for the calculation of the viscosity of binary mixtures of methane, ethane, propane, and n-butane. The only generalized methods that have been suggested for the calculation of the viscosity of dense gaseous mixtures are modifications of correlations for pure components in which the group p/p* (or p / p , -) is empirically related to TR and P, through ,the available experimental data (18, 8 7 ) . The critical temperatures and pressures of the mixtures are calculated from the critical constants of the pure components by the use of the linear combination rules proposed by Kay (43). However, it is well established that reduced state correlations of this type are specific only to individual substances or substances having a similar nature, and that a generalized correlation must contain an additional parameter (such as the critical compressibility factor of the substance) to account for the size and shape of the molecules ( 7 ) .For pure substances, Jossi, Stiel, and Thodos ( 4 2 ) have developed analytical relationships between the residual viscosity group, ( p -p*)(, and the reduced density of the substance from experimental data for twelve substances (including monatomic and diatomic gases, hydrocarbons, and carbon dioxide). This method for the prediction of the viscosity of pure substances does not possess the limitations of the previous correlations for the reduced viscosity which contain an insufficient number of parameters to be applicable to a wide range of substances. In addition, analytical expressions are much more suitable for computer calculations than graphical correlations. which require the storage of a large number of values and tedious interpolation calculatio...

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Viscosity and Thermal Conductivity of Binary Gas Mixtures: Krypton-Argon, Krypton-Neon, and Krypton-Helium

Cited by 31 publications

References 11 publications

Thermophysical properties of krypton-helium gas mixtures from ab initio pair potentials

Thermophysical properties of krypton-helium gas mixtures from ab initio pair potentials

Critical reassessment of viscosities of 11 common gases

The viscosity of nonpolar gas mixtures at moderate and high pressures

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