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dc.contributor.authorFernández Maza, Christian 
dc.contributor.authorFallanza Torices, Marcos 
dc.contributor.authorGómez Coma, Lucía 
dc.contributor.authorOrtiz Uribe, Inmaculada 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2022-03-30T07:50:34Z
dc.date.available2022-03-30T07:50:34Z
dc.date.issued2022-06-01
dc.identifier.issn1385-8947
dc.identifier.issn1873-3212
dc.identifier.otherRTI2018-093310-B-I00es_ES
dc.identifier.urihttp://hdl.handle.net/10902/24445
dc.description.abstractOne of the major challenges in the design of micro-devices, when very fast reactions are carried out, is to overcome the limited performance due to the poor mixing efficiency of the reactants. Here, we report a holistic analysis of reactants mixing and reaction rate in liquid phase flow micro-reactors with curved geometries. In this sense, a mathematical model that accounts for momentum and mass conservation equations, together with species transport and chemical reaction rate under isothermal conditions, has been developed using computational fluid dynamics techniques (CFD). To validate the predictive model, four micro-reactor geometries with different radius and curved length (straight reactor, two types of serpentines and an Archimedean spiral) have been evaluated. Simulated results proved that mixing is promoted through the formation of Dean vortices as a consequence of the reduction of the radius of curvature and at the same time of the extension of the curve. Thus, the overall performance of the micro-reactor is improved because mass transport limitations are minimized and the process kinetics are greatly enhanced. Accordingly, the spiral micro-reactor reported the best performance by reducing by half the time required to obtain 95 % conversion when compared with the straight reactor. Simulated findings have been confirmed with the experimental analysis of the reaction between aqueous ammonium and hypochlorite ions. Very good agreement between simulated and experimental results has been achieved with an error lower than 10 %. Therefore, the robust model herein reported is a novel and valuable tool to assist in the optimum design of micro-reactors for fluid-phase isothermal applications.es_ES
dc.description.sponsorshipFinancial assistance from the project RTI2018-093310-B-I00 (MCI/AEI/FEDER,UE) is gratefully acknowledged.es_ES
dc.format.extent8 p.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationales_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.sourceChemical Engineering Journal, 2022, 437(2), 135192es_ES
dc.subject.otherMicro-reactor designes_ES
dc.subject.otherMixing efficiencyes_ES
dc.subject.otherCurved-shaped geometryes_ES
dc.subject.otherCFD modellinges_ES
dc.subject.otherFluid phase reactionses_ES
dc.subject.otherDean vorticeses_ES
dc.titlePerformance of continuous-flow micro-reactors with curved geometries. Experimental and numerical analysises_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttps://doi.org/10.1016/j.cej.2022.135192es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1016/j.cej.2022.135192
dc.type.versionpublishedVersiones_ES


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Attribution-NonCommercial-NoDerivatives 4.0 InternationalExcepto si se señala otra cosa, la licencia del ítem se describe como Attribution-NonCommercial-NoDerivatives 4.0 International