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Revised version_Investigation_of_diffusive_and_optical_properties_.pdf (1.746Mb)
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Google Scholar
Microsoft Academic
Partekatu
Gorde erreferentzia
Mendely
Izenburua
Investigation of diffusive and optical properties of vapour-air mixtures: The benefits of interferometry
Egilea
Shevtsova, ValentinaMondragon Unibertsitatea
Egilea (beste erakunde batekoa)
Shevchenko, V.
Mialdun, Aliaksandr
Yasnou, V.
Lyulin, Y. V.
Ouerdane, H.
Ikerketa taldea
Mecánica de fluidos
Argitalpen data
2021
Argitaratzailea
Elsevier Ltd.
Gako-hitzak
Interferometry
Vapor-in-air diffusion coefficient
Vapor optical properties
Acetone
HFE-7100
Laburpena
While interferometry has been widely used for diffusion measurements in liquid mixtures, it was hardly applied so far to vapour-gas mixtures. The present work aims to bridge this gap. Using an improve ... [+]
While interferometry has been widely used for diffusion measurements in liquid mixtures, it was hardly applied so far to vapour-gas mixtures. The present work aims to bridge this gap. Using an improved Mach–Zehnder interferometer, we investigate the evaporation of acetone and HFE-7100 in ambient air. Our observations build on complete evaporation of a thin liquid layer in a cell with open end, at ambient temperature varying between 283.15 and 313.15 K. Monitoring the evolution of the refractive index change allows us to determine the evaporation rate and vapour-in-air diffusion coefficients. The spatial distribution of the refractive index reveals that the purely diffusive mode of transport is perturbed at both ends of the cell. Interferometric images facilitate isolating these regions, determining the true diffusion path, and hence, the correct diffusion coefficients. Besides, we illustrate the possibility of calculating the optical contrast factors, which we find in excellent agreement with current experiments. [-]
URI
http://hdl.handle.net/20.500.11984/5231
Argitaratzailearen bertsioa
https://doi.org/10.1016/j.ces.2020.116433
ISSN
0009-2509
Non argitaratua
Chemical Engineering Science  Chemical Engineering Science. Vol. 233. N. artículo 116433, 2021
Dokumentu-mota
Artikulua
Bertsioa
Postprinta – Accepted Manuscript
Eskubideak
© 2021 Elsevier Ltd.
Sarbidea
Sarbide bahitua (2023-04-30 arte)
Bildumak
  • Artikuluak - Ingeniaritza [309]

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