Autor segons l'article: Šeta B; Lapeira E; Gavalda J; Bou-Ali MM; Ruiz X
Departament: Química Física i Inorgànica
Autor/s de la URV: Gavaldà Martínez, Josefa / Ruiz Martí, José Javier / SETA, BERIN
Paraules clau: Two colour lasers Thermogravitational microcolumn Thermodiffusion Ternary mixtures Steady-state analysis
Resum: © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature. Steady-state measurements in a thermogravitational microcolumn using optical digital interferometry are presented here for the first time in the literature in the case of ternary mixtures. These measurements enabled the subsequent obtaining of thermodiffusion coefficients of a ternary mixture once convection reaches the steady-state. The ternary mixture used was the benchmark one, tetrahydronaphthalene (THN) – isobutylbenzene (IBB) and n-dodecane (nC12) with mass fraction of 0.8-0.1-0.1 respectively. Contrast factors due to the change in the concentration field were measured and compared with the corresponding ones in the literature. Uncertainty in the results was found to be of similar order of magnitude as in the case of Selectable Optical Diagnostic Instrument (SODI), which means that the condition number of that contrast factor matrix is almost equal to the present one. Final values of thermodiffusion coefficients were compared with the results reported from other optical techniques, as well as with the results obtained by the traditional long opaque thermogravitational columns (TGC). Some proposals were then made in order to improve accuracy reducing the condition number of the contrast factor matrix.
Àrees temàtiques: Thermodynamics Physics and astronomy (miscellaneous) Physics and astronomy (all) Modeling and simulation Mechanics General physics and astronomy General engineering Engineering, multidisciplinary Engineering, aerospace Engineering (miscellaneous) Engineering (all) Engineering Engenharias iii Engenharias ii Biotecnología Applied mathematics
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: josepxavier.ruiz@urv.cat fina.gavalda@urv.cat
Identificador de l'autor: 0000-0003-4020-4457 0000-0001-7881-4192
Data d'alta del registre: 2023-02-23
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://link.springer.com/article/10.1007/s12217-020-09861-5
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Microgravity Science And Technology. 33 (18):
Referència de l'ítem segons les normes APA: Šeta B; Lapeira E; Gavalda J; Bou-Ali MM; Ruiz X (2021). Steady-state Measurements of Ternary Mixtures in Thermogravitational Microcolumn Using Optical Digital Interferometry. Microgravity Science And Technology, 33(18), -. DOI: 10.1007/s12217-020-09861-5
DOI de l'article: 10.1007/s12217-020-09861-5
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2021
Tipus de publicació: Journal Publications
Repositori URV