Measurement of Soret coefficients in a ternary mixture of toluene-methanol-cyclohexane in convection-free environment | Научно-инновационный портал СФУ

Measurement of Soret coefficients in a ternary mixture of toluene-methanol-cyclohexane in convection-free environment

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1063/1.5017716

Аннотация: We report on the measurement of Soret (ST) coefficients in the ternary system toluene (T)-methanol (M)-cyclohexane (Ch) onboard the International Space Station in the experiment selectable optical diagnostic instrument/DCMIX2 (Diffusion Coefficients Measurement in ternary mIXtures). Nine experiments were conducted in the range of mean temperatures between 298.15 K and 306.15 K in the mixture with composition 0.62 (T)-0.31 (M)-0.07 (Ch) in mass fractions. A linear dependence of the Soret coefficients on temperature was established for the ternary mixture. It has also been found that, over considered range of mean temperatures, the Soret coefficients of toluene are small and positive, while the Soret coefficients for methanol are negative and, at least, two times larger. The present work also presents a comprehensive study of possible methodologies to process raw data from the Soret experiment in ternary mixtures. All the experiments were processed by seven different schemes and two of them were identified as the most reliable. We also investigate the error propagation and explain the reasons for the discrepancy of the results obtained by different schemes. © 2018 Author(s).

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Издание

Журнал: Journal of Chemical Physics

Выпуск журнала: Vol. 148, Is. 4

Номера страниц: 44506

ISSN журнала: 00219606

Издатель: American Institute of Physics Inc.

Авторы

  • Mialdun A. (MRC, CP165/62, Université Libre de Bruxelles, Ave. F. Roosevelt, 50, Brussels, Belgium)
  • Ryzhkov I. (Institute of Computational Modelling SB RAS, Federal Research Center SB RAS, Akademgorodok 50-44, Krasnoyarsk, Russian Federation, Siberian Federal University, Svobodny 79, Krasnoyarsk, Russian Federation)
  • Khlybov O. (Institute of Continuous Media Mechanics UB RAS, Koroleva St., 1, Perm, Russian Federation)
  • Lyubimova T. (Institute of Continuous Media Mechanics UB RAS, Koroleva St., 1, Perm, Russian Federation, Perm State University, Bukireva St., 15, Perm, Russian Federation)
  • Shevtsova V. (MRC, CP165/62, Université Libre de Bruxelles, Ave. F. Roosevelt, 50, Brussels, Belgium)

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