https://doi.org/10.1140/epje/i2019-11818-7
Regular Article
Separation under thermogravitational effects in binary mixtures
1
Universitat Rovira i Virgili, Departament de Química Física i Inorganica, C/ Marcel.lí Domingo s/n, 43007, Tarragona, Spain
2
Mondragon Unibersitatea, Department of Mechanical and Industrial Manufacturing, Mondragon Goi Eskola Politeknikoa, 20500, Mondragon, Spain
* e-mail: berin.seta@urv.cat
** e-mail: mbouali@mondragon.edu
Received:
18
January
2019
Accepted:
22
March
2019
Published online:
16
May
2019
In the present work, by using a parallelepipedic thermogravitational microcolumn, the temperature gradient influence on the stability of the flow has been examined, emphasizing mixtures with positive Soret coefficients. Experiments were conducted for DCMIX2 Toluene/Methanol and DCMIX3 Water/Ethanol binary subsystems because of their broad range of positive Soret values for high concentrations of methanol and ethanol, respectively. Two different mixtures have been studied here in order to confirm the thermogravitational stability of the mixtures. Experiments were compared with numerical simulations carried out using the open-source software platform OpenFOAM.
Key words: Topical issue: Thermal Non-Equilibrium Phenomena in Soft Matter
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2019
