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A simple model to predict the performance of a H2O&-LiBr absorber operating with a microporous membrane

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnologías Apropiadas para el Desarrollo Sosteniblees
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.contributor.authorVenegas Bernal, María Carmenes
dc.contributor.authorVega Blázquez, Mercedes dees
dc.contributor.authorGarcía Hernando, Néstores
dc.contributor.authorRuiz-Rivas Hernando, Ulpianoes
dc.date.accessioned2016-09-06T10:18:27Z
dc.date.available2018-04-06T22:00:05Z
dc.date.issued2016-02-01
dc.description.abstractA microporous membrane is used in combination with rectangular microchannels in the absorber of an absorption chiller with the aim of reducing the size of this cooling technology. The simulation of the heat and mass transfer between the solution and the vapour phase in a H2O&-LiBr absorber using porous fibres is considered. Heat and mass transfer processes are modelled by means of selected correlations and data gathered from the open literature. This new model is applied for the simulation of the absorber under typical operating conditions of absorption cooling chillers. Absorption rate, heat and mass transfer coefficients, solution concentration, temperatures of the working fluids and pressure potential along the absorption channels are calculated. For the case considered in this study, the absorber channels are of 5 cm length, offering a maximum ratio between cooling capacity of the chiller and absorber volume of 1090 kW/m3. This ratio is higher than twice the usual values found in falling film absorbers using conventional circular tubes. The mean absolute error between the model results and the experimental data gathered from the open literature is 8.5%, showing the capability of the model to predict the performance of membrane-based absorbers.en
dc.description.sponsorshipThe financial support of this study by the Ministerio de Economía y Competitividad of Spain through the research grant ENE2013-43131-R is greatly appreciated.en
dc.format.extent12
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationEnergy, v. 96, pp. 383-396
dc.identifier.doi10.1016/j.energy.2015.12.059
dc.identifier.issn0360-5442
dc.identifier.publicationfirstpage383
dc.identifier.publicationlastpage393
dc.identifier.publicationtitleEnergy
dc.identifier.publicationvolume96
dc.identifier.urihttps://hdl.handle.net/10016/23521
dc.identifier.uxxiAR/0000018060
dc.language.isoeng
dc.publisherElsevier
dc.relation.projectIDGobierno de España. ENE2013-43131-Res
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.energy.2015.12.059
dc.rights© Elsevier 2016
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.ecienciaEnergías Renovableses
dc.subject.otherAbsorption refrigerationen
dc.subject.otherMembranesen
dc.subject.otherAbsorberen
dc.subject.otherWater-lithium bromideen
dc.subject.otherRectangular microchannelsen
dc.titleA simple model to predict the performance of a H2O&-LiBr absorber operating with a microporous membraneen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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