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dc.contributor.authorRives Sanz, Ronny
dc.contributor.authorSalavera, Daniel
dc.contributor.authorCampos, Juan
dc.contributor.authorCoronas Salcedo, Alberto
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2022-04-01T14:13:01Z
dc.date.issued2022-01-01
dc.identifier.citationRives, R. [et al.]. Development of optical digital interferometry for visualizing and modelling the mass diffusion of ammonia in water in an absorption process. "Experimental thermal and fluid science", 1 Gener 2022, vol. 130, p. 110509:1-110509:13.
dc.identifier.issn0894-1777
dc.identifier.urihttp://hdl.handle.net/2117/365216
dc.description.abstractThis study reports the development and implementation of Optical Digital Interferometry for visualizing and modelling mass diffusion in the absorption process of ammonia in water. Absorption experiments were performed at infinite dilution of ammonia and at 293 K, 303 K, and 313 K. The method developed makes it possible to visualize the development of the mass diffusion layer and determine the evolution of concentration profiles in the ammonia/water mixture, providing new spatio-temporal data on the absorption process. A non-equilibrium model based on Fick’s Second Law was used to describe the mass diffusion process. It was found that the model can successfully reproduce the experimental profiles of the ammonia concentration. The method developed also allows the simultaneous determination of mass diffusivity and mass transfer coefficients from a single experimental test. The values obtained for the mass diffusivity of ammonia in water vary from 1.54 × 10-9 m2 s-1 at 293.1 K to 2.50 × 10-9 m2 s-1 at 313.1 K. The relative deviations between the experimental mass diffusivity and literature values did not exceed 6.0%. The mass transfer coefficient ranges from 2.12 × 10-5 m s-1 at 293.1 K to 4.19 × 10-5 m s-1 at 313.1 K. The results show the potential of Optical Digital Interferometry for the development and validation of heat and mass transfer models used to design components in absorption 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.lcshMass transfer
dc.subject.otherAmmonia/Water mixture
dc.subject.otherMass Diffusion
dc.subject.otherModelling
dc.subject.otherOptical Digital Interferometry Visualization
dc.titleDevelopment of optical digital interferometry for visualizing and modelling the mass diffusion of ammonia in water in an absorption process
dc.typeArticle
dc.subject.lemacTermodinàmica
dc.subject.lemacTransferència de massa
dc.identifier.doi10.1016/j.expthermflusci.2021.110509
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/abs/pii/S0894177721001539
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac32544710
dc.description.versionPostprint (author's final draft)
dc.date.lift2024-01-01
local.citation.authorRives, R.; Salavera, D.; Campos, J.; Coronas, A.
local.citation.publicationNameExperimental thermal and fluid science
local.citation.volume130
local.citation.startingPage110509:1
local.citation.endingPage110509:13


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