Show simple item record

dc.contributor.authorRives Sanz, Ronny
dc.contributor.authorMialdun, Aliaksandr
dc.contributor.authorYasnou, Viktar
dc.contributor.authorShevtsova, Valentina
dc.contributor.authorCoronas Salcedo, Alberto
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2022-02-08T18:17:50Z
dc.date.available2022-02-08T18:17:50Z
dc.date.issued2019-12-15
dc.identifier.citationRives, R. [et al.]. Experimental determination and predictive modelling of the mutual diffusion coefficients of water and ionic liquid 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate. "Journal of molecular liquids", 15 Desembre 2019, vol. 296, p. 111931:1-111931:12.
dc.identifier.issn0167-7322
dc.identifier.urihttp://hdl.handle.net/2117/361976
dc.description.abstractMutual diffusion coefficients of a binary mixture of water + ionic liquid 1-(2-hydroxyethyl)-3- methylimidazolium tetrafluoroborate have been investigated by means of experimental and predictive ap- proaches. Optical digital interferometry has been employed to determine the mutual diffusion coefficients over the full ionic liquid mass fraction range and at four temperatures between 298.15 and 313.15 K. Moreover, the prediction ability of four different models has been tested. The influence of using different excess Gibbs energy (gE) models to calculate the relevant thermodynamics properties was also addressed. The mutual diffusion coef- ficient has a strong dependence on concentration and varies from 2 × 10-10 to 1.27 × 10-9 m2 s-1. The concen- tration and temperature dependencies of the present experimental diffusion coefficients were correlated using empirical and predictive equations. The use of binary interaction parameter regressed from diffusion data instead of vapor-liquid equilibria improves considerably the prediction ability of the employed predictive models. Among the studied predictive models, the modified group contribution model provides the best results with an absolute relative deviation of 2.1%. Throughout the paper, thermodynamic and kinetic behavior of the mixture are analyzed for establishing an appropriate criterion for the screening of ionic liquids as working fluids for ab- sorption refrigeration systems.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshThermodynamics
dc.subject.otherDiffusion coefficient
dc.subject.otherOptical digital interferometry
dc.subject.otherPredictive diffusion models
dc.subject.otherIonic liquid
dc.titleExperimental determination and predictive modelling of the mutual diffusion coefficients of water and ionic liquid 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate
dc.typeArticle
dc.subject.lemacTermodinàmica
dc.identifier.doi10.1016/j.molliq.2019.111931
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/abs/pii/S0167732219336347
dc.rights.accessOpen Access
local.identifier.drac32544796
dc.description.versionPostprint (author's final draft)
local.citation.authorRives, R.; Mialdun, A.; Yasnou, V.; Shevtsova, V.; Coronas, A.
local.citation.publicationNameJournal of molecular liquids
local.citation.volume296
local.citation.startingPage111931:1
local.citation.endingPage111931:12


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record