Journal
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
Volume 92, Issue -, Pages 14-16Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ijthermalsci.2015.01.013
Keywords
Thermodiffusion coefficient; Binary mixtures; Ternary mixtures; Thermogravitational column
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Funding
- Basque Government [PI2011-22, IE14-391, IT557-10]
- DCMIX from the European Space Agency [DCMIX-NCR-00022-QS]
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In this work we carefully measured the thermodiffusion coefficient of four ternary mixtures of 1,2,3,4-tetrahydronaphthalene, isobutylbenzene and n-dodecane at 25 degrees C and at mass fractions of: 10/80/10, 10/10/80, 40/20/40 and 45/10/45 using the thermogravitational technique. In order to determine the reproducibility of the measurements we performed three different runs for each mixture. In addition, we have also measured the thermodiffusion coefficient of 13 binary mixtures composed of these components. The obtained values of transport properties for binaries agreed with recent measurements done by optical methods and they allowed analysing the validity of an additive rule to determine the thermodiffusion coefficient of ternary mixtures from binary thermodiffusion data. A good agreement between measured and calculated values of the thermodiffusion coefficient for the four ternary mixtures studied was obtained. This work completes the thermodiffusion results for this hydrocarbon ternary mixture which has been analysed at other two compositions in previous works. (C) 2015 Elsevier Masson SAS. All rights reserved.
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