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Труды сотрудников Института теплофизики УрО РАН
Труды сотрудников Института химии твердого тела УрО РАН
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Труды сотрудников ЦНБ УрО РАН
Публикации Черешнева В.А.
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1.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Pankov A. S.
Заглавие : Nucleation in ethane–nitrogen solutions. II. Heterogeneous and initiated nucleation [Электронный ресурс]
Место публикации : International Journal of Heat and Mass Transfer. - 2015. - Vol. 86. - С. 936-942
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0017931015003312
Примечания : Bibliogr. : p. 942 (18 ref.). - 18.11.15
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): nucleation --method of continuous pressure lowering--heterogeneous nucleation --superheating
Аннотация: The method of continuous pressure decrease has been used to investigate limiting (attainable) stretches of ethane–nitrogen solutions. Experiments were conducted at temperatures of 260, 266, 270, and 276 K and at nitrogen concentrations in the solution of 0.5 and 1.5 mol%. Pressure decrease rates were taken in the range 0.01–0.1 MPa/s. Distribution functions of liquid boiling-up events in dependence on pressure have been obtained allowing one to determine the most probable (attainable) pressures of liquid boiling-up and the nucleation rate. The results are interpreted in terms of nucleation thermodynamics and kinetics in liquids on a solid surface containing inclusions that initiate the boiling-up processes. It is shown that for realizing homogeneous nucleation it is not necessarily required that the wettability is close to the ideal one. The reasons for the discrepancy between experimental data and predictions of homogeneous nucleation theory at nucleation rates J 3 × 106 s−1 m−3 are discussed.
\\\\expert2\\nbo\\International Journal of Heat and Mass Transfer\\2015, v. 86, p.936-942.pdf
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2.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Pankov A. S.
Заглавие : Nucleation in ethane-nitrogen solutions. I. Homogeneous nucleation [Электронный ресурс]
Место публикации : International Journal of Heat and Mass Transfer. - 2015. - Vol. 86. - С. 930-935
Систем. требования: http://www.sciencedirect.com/science?_ob=ArticleListURL&_method
Примечания : Bibliogr. : p. 935 (32 ref.). - 18.11.15
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): classical nucleation theory --method of lifetime measurement--ethane-nitrogen solution
Аннотация: The method of lifetime measurement is used to investigate the kinetics of spontaneous boiling-up of ethane-nitrogen solutions. Superheating temperatures Tn of solutions have been determined in experiments at pressure p = 1.0, 1.6 MPa and nitrogen concentration in ethane x = 0.5, 1.5 mol% in the nucleation rate range J = 1 × 104-2 × 108 s-1 m-3. At J 3 × 106 s-1 m-3 one can observe a satisfactory agreement between experimental data and homogeneous nucleation theory with respect to the temperature dependence of the nucleation rate and a systematic disagreement in the superheating temperature. At x = 0.5 mol% attainable superheating temperatures achieved by experiment coincide within the experimental error with theoretical values, and at x = 1.5 mol% exceed them by approximately 1.7 K. It is shown that one possible reason of such "excess superheating" of a solution beyond the theoretical value of Tn may be the absence of adsorption equilibrium at the critical bubble-ambient solution interface
\\\\expert2\\nbo\\International Journal of Heat and Mass Transfer\\2015, v. 86, p.930-935.pdf
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3.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Pankov A. S.
Заглавие : Nucleation in ethane–nitrogen solutions. II. Heterogeneous and initiated nucleation [Электронный ресурс]
Место публикации : International Journal of Heat and Mass Transfer. - 2015. - Vol. 86. - С. 936-942
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0017931015003312
Примечания : Bibliogr. : p. 942 (18 ref.). - 18.11.15
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): nucleation --method of continuous pressure lowering--heterogeneous nucleation --superheating
Аннотация: The method of continuous pressure decrease has been used to investigate limiting (attainable) stretches of ethane–nitrogen solutions. Experiments were conducted at temperatures of 260, 266, 270, and 276 K and at nitrogen concentrations in the solution of 0.5 and 1.5 mol%. Pressure decrease rates were taken in the range 0.01–0.1 MPa/s. Distribution functions of liquid boiling-up events in dependence on pressure have been obtained allowing one to determine the most probable (attainable) pressures of liquid boiling-up and the nucleation rate. The results are interpreted in terms of nucleation thermodynamics and kinetics in liquids on a solid surface containing inclusions that initiate the boiling-up processes. It is shown that for realizing homogeneous nucleation it is not necessarily required that the wettability is close to the ideal one. The reasons for the discrepancy between experimental data and predictions of homogeneous nucleation theory at nucleation rates J 3 × 106 s−1 m−3 are discussed.
\\\\expert2\\nbo\\International Journal of Heat and Mass Transfer\\2015, v. 86, p.936-942.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Pankov A. S.
Заглавие : Nucleation in ethane-nitrogen solutions. I. Homogeneous nucleation [Электронный ресурс]
Место публикации : International Journal of Heat and Mass Transfer. - 2015. - Vol. 86. - С. 930-935
Систем. требования: http://www.sciencedirect.com/science?_ob=ArticleListURL&_method
Примечания : Bibliogr. : p. 935 (32 ref.). - 18.11.15
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): classical nucleation theory --method of lifetime measurement--ethane-nitrogen solution
Аннотация: The method of lifetime measurement is used to investigate the kinetics of spontaneous boiling-up of ethane-nitrogen solutions. Superheating temperatures Tn of solutions have been determined in experiments at pressure p = 1.0, 1.6 MPa and nitrogen concentration in ethane x = 0.5, 1.5 mol% in the nucleation rate range J = 1 × 104-2 × 108 s-1 m-3. At J 3 × 106 s-1 m-3 one can observe a satisfactory agreement between experimental data and homogeneous nucleation theory with respect to the temperature dependence of the nucleation rate and a systematic disagreement in the superheating temperature. At x = 0.5 mol% attainable superheating temperatures achieved by experiment coincide within the experimental error with theoretical values, and at x = 1.5 mol% exceed them by approximately 1.7 K. It is shown that one possible reason of such "excess superheating" of a solution beyond the theoretical value of Tn may be the absence of adsorption equilibrium at the critical bubble-ambient solution interface
\\\\expert2\\nbo\\International Journal of Heat and Mass Transfer\\2015, v. 86, p.930-935.pdf
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5.

Вид документа :
Шифр издания : 53/N 64
Автор(ы) : Nikitin E. D., Popov A. P., Bogatishcheva N. S.
Заглавие : Critical properties of some aliphatic symmetrical ethers [Электронный ресурс]
Место публикации : Journal of Chemical Thermodynamics. - 2014. - Vol.68. - С. 288-292
Систем. требования: http://www.scopus.com/record/display.url?eid=2-s2.0-84886263467&origin=resultslist&sort=plf-f&src=s&st1=Nikitin&st2=E.+D.
Примечания : Bibliogr. : p. 292 (30 ref.). - 27.08.2014
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): critical properties --group-contribution method--ethers
Аннотация: The critical temperatures Tc and the critical pressures p c of dihexyl, dioctyl, and didecyl ethers have been measured. According to the measurements, the coordinates of the critical points are T c = (665 ± 7) K, pc = (1.44 ± 0.04) MPa for dihexyl ether, Tc = (723 ± 7) K, pc = (1.19 ± 0.04) MPa for dioctyl ether, and Tc = (768 ± 8) K, pc = (1.03 ± 0.03) MPa for didecyl ether. All the ethers studied degrade chemically at near-critical temperatures. A pulse-heating method applicable to measuring the critical properties of thermally unstable compounds has been used. The times from the beginning of a heating pulse to the moment of reaching the critical temperature were from 0.06 to 0.46 ms. The short residence times provide little decomposition of the substances in the course of the experiments. The critical properties of the ethers investigated in this work have been discussed together with those of methyl to butyl ethers. The experimental critical constants of the ethers have been compared with those estimated by the group-contribution methods of Wilson and Jasperson and Marrero and Gani. The Wilson/Jasperson method provides a better estimation of the critical temperatures and pressures of simple aliphatic ethers in comparison with the Marrero/Gani method if reliable normal boiling temperatures are used in the method of Wilson and Jasperson
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6.

Вид документа :
Шифр издания : 53/N 64
Автор(ы) : Nikitin E. D., Popov A. P., Bogatishcheva N. S.
Заглавие : Critical properties of some aliphatic symmetrical ethers [Электронный ресурс]
Место публикации : Journal of Chemical Thermodynamics. - 2014. - Vol.68. - С. 288-292
Систем. требования: http://www.scopus.com/record/display.url?eid=2-s2.0-84886263467&origin=resultslist&sort=plf-f&src=s&st1=Nikitin&st2=E.+D.
Примечания : Bibliogr. : p. 292 (30 ref.). - 27.08.2014
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): critical properties --group-contribution method--ethers
Аннотация: The critical temperatures Tc and the critical pressures p c of dihexyl, dioctyl, and didecyl ethers have been measured. According to the measurements, the coordinates of the critical points are T c = (665 ± 7) K, pc = (1.44 ± 0.04) MPa for dihexyl ether, Tc = (723 ± 7) K, pc = (1.19 ± 0.04) MPa for dioctyl ether, and Tc = (768 ± 8) K, pc = (1.03 ± 0.03) MPa for didecyl ether. All the ethers studied degrade chemically at near-critical temperatures. A pulse-heating method applicable to measuring the critical properties of thermally unstable compounds has been used. The times from the beginning of a heating pulse to the moment of reaching the critical temperature were from 0.06 to 0.46 ms. The short residence times provide little decomposition of the substances in the course of the experiments. The critical properties of the ethers investigated in this work have been discussed together with those of methyl to butyl ethers. The experimental critical constants of the ethers have been compared with those estimated by the group-contribution methods of Wilson and Jasperson and Marrero and Gani. The Wilson/Jasperson method provides a better estimation of the critical temperatures and pressures of simple aliphatic ethers in comparison with the Marrero/Gani method if reliable normal boiling temperatures are used in the method of Wilson and Jasperson
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7.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Kaverin A. M., Khotienkova M. N.
Заглавие : Surface tension of ethane-methane solutions: 1. Experiment and thermodynamic analysis of the results
Место публикации : Fluid Phase Equilibria. - 2013. - Vol.356. - С. 90-95
Примечания : Bibliogr. : p. 95 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): adsorption--capillary constant--surface tension
Аннотация: The paper presents the results of measuring the capillary constant a2 and calculating the surface tension σ of ethane-methane solutions. Experimental data have been obtained in the temperature range from 93.15 to 283.15K at pressures from that of saturated vapors of pure ethane to 4MPa. Equations that approximate the temperature, pressure and concentration dependences of a2 and σ are suggested. The concentration dependence of the surface tension is described in the framework of models of an ideal and a regular solution. The relative adsorption has been calculated
\\\\expert2\\NBO\\Fluid Phase Equilibria\\2013, v.356, p. 90-95.pdf
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8.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Grishina K. A.
Заглавие : Capillary constant and surface tension of methane-helium solution
Место публикации : Fluid Phase Equilibria. - 2013. - Vol.354. - С. 245-249
Примечания : Bibliogr. : p. 249 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): adsorption--capillary constant--differential capillary method
Аннотация: The differential capillary method has been used to measure the capillary constant a2 of methane-helium solutions in the temperature range from 95 to 175K at pressures up to 4MPa. The surface tension γ and adsorption have been calculated from the obtained values of a2 employing, in addition, literature data on the density of the liquid and vapor phases of the respective solutions. Equations, which approximate the temperature, pressure and concentration dependences of a2 and γ, are proposed
\\\\expert2\\NBO\\Fluid Phase Equilibria\\2013, v.354, p. 245-249.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Grishina K. A.
Заглавие : Capillary constant and surface tension of methane-helium solution
Место публикации : Fluid Phase Equilibria. - 2013. - Vol.354. - С. 245-249
Примечания : Bibliogr. : p. 249 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): adsorption--capillary constant--differential capillary method
Аннотация: The differential capillary method has been used to measure the capillary constant a2 of methane-helium solutions in the temperature range from 95 to 175K at pressures up to 4MPa. The surface tension γ and adsorption have been calculated from the obtained values of a2 employing, in addition, literature data on the density of the liquid and vapor phases of the respective solutions. Equations, which approximate the temperature, pressure and concentration dependences of a2 and γ, are proposed
\\\\expert2\\NBO\\Fluid Phase Equilibria\\2013, v.354, p. 245-249.pdf
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10.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Kaverin A. M., Khotienkova M. N.
Заглавие : Surface tension of ethane-methane solutions: 1. Experiment and thermodynamic analysis of the results
Место публикации : Fluid Phase Equilibria. - 2013. - Vol.356. - С. 90-95
Примечания : Bibliogr. : p. 95 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): adsorption--capillary constant--surface tension
Аннотация: The paper presents the results of measuring the capillary constant a2 and calculating the surface tension σ of ethane-methane solutions. Experimental data have been obtained in the temperature range from 93.15 to 283.15K at pressures from that of saturated vapors of pure ethane to 4MPa. Equations that approximate the temperature, pressure and concentration dependences of a2 and σ are suggested. The concentration dependence of the surface tension is described in the framework of models of an ideal and a regular solution. The relative adsorption has been calculated
\\\\expert2\\NBO\\Fluid Phase Equilibria\\2013, v.356, p. 90-95.pdf
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