Semi-theoretical model of the wetting characteristics of aqueous ionic liquid on an aluminium finned-tube desiccant contactor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A new design of an internally cooled desiccant contactor which uses a new ionic liquid (IL) solution as sorptive medium is targeted. To optimise its operative performance, a semi-theoretical model based on a variational thermodynamic principle is developed to predict the film rupture and wetting ability of the IL solution for different values of the IL mass fraction over a comprehensive range of liquid spray density. The minimum Reynolds number Reb allowing the film-like flow configuration and, below this value, the wetted fraction of the solid substrate are firstly formulated on an analytical basis. Successively, the theoretical formulation is used as a reference to minimise deviations between predicted results and measured data by calibrating dedicated characteristic coefficients. Predicted film rupture, wetting ability and wetting hysteresis behaviour are strongly affected by the IL mass fraction and found in good agreement with the measurements.

Original languageEnglish
Title of host publicationICR 2019 - 25th IIR International Congress of Refrigeration
EditorsVasile Minea
PublisherInternational Institute of Refrigeration
Pages4616-4623
Number of pages8
ISBN (Electronic)9782362150357
DOIs
Publication statusPublished - 2019
Event25th IIR International Congress of Refrigeration, ICR 2019 - Montreal, Canada
Duration: 2019 Aug 242019 Aug 30

Publication series

NameRefrigeration Science and Technology
Volume2019-August
ISSN (Print)0151-1637

Conference

Conference25th IIR International Congress of Refrigeration, ICR 2019
CountryCanada
CityMontreal
Period19/8/2419/8/30

Keywords

  • Ionic Liquid
  • Liquid Desiccant
  • Modelling
  • Wettability

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

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  • Cite this

    Giannetti, N., Varela, R. J., Ariyadi, H., Yamaguchi, S., Saito, K., Wang, X. M., & Nakayama, H. (2019). Semi-theoretical model of the wetting characteristics of aqueous ionic liquid on an aluminium finned-tube desiccant contactor. In V. Minea (Ed.), ICR 2019 - 25th IIR International Congress of Refrigeration (pp. 4616-4623). [1059] (Refrigeration Science and Technology; Vol. 2019-August). International Institute of Refrigeration. https://doi.org/10.18462/iir.icr.2019.1059