Parametric study of operating and design variables on the performance of a membrane-based absorber

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dc.contributor.author Venegas Bernal, María Carmen
dc.contributor.author Vega Blázquez, Mercedes de
dc.contributor.author García Hernando, Néstor
dc.date.accessioned 2016-09-06T10:38:45Z
dc.date.available 2018-04-06T22:00:05Z
dc.date.issued 2016-04-05
dc.identifier.bibliographicCitation Applied Thermal Engineering, v. 98, pp. 409-419
dc.identifier.issn 1359-4311
dc.identifier.uri http://hdl.handle.net/10016/23523
dc.description.abstract A plate-and-frame microchannel H2O&-LiBr absorber using a microporous membrane as contactor between the vapour and the solution is simulated. The heat and mass transfer equations, describing the absorption of the vapour phase into the solution, are solved for different membrane properties and for variable design and operating conditions. The parametric study evaluates the sensitivity of the ratio between the cooling capacity of the chiller and the absorber volume (rqV) to changes in the following parameters: width and height of the solution and cooling water channels; concentration, temperature and mass flow rate of the solution; temperature and mass flow rate of the cooling water; porosity, pore diameter, thickness and thermal conductivity of the membrane; thickness and thermal conductivity of the interface wall between the solution and the cooling water; and temperature, pressure and mass flow rate of the vapour. At the design stage of the membrane absorber, the parameters that can be optimised to maximise rqV are porosity, pore diameter, solution channels depth and membrane thickness. The thickness of the interface wall between the solution and the cooling water, as well as the solution channels width should be also taken into account. For a good performance during the operation of the absorber, special care should be taken to select the adequate vapour pressure and solution inlet temperature and concentration.
dc.description.sponsorship The financial support of this study by the Ministerio de Economía y Competitividad of Spain through the research grant ENE2013- 43131-R is greatly appreciated.
dc.format.extent 12
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier 2016
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Absorption refrigeration
dc.subject.other Membrane
dc.subject.other Absorber
dc.subject.other Water-lithium bromide
dc.subject.other Rectangular microchannel
dc.subject.other Parametric study
dc.title Parametric study of operating and design variables on the performance of a membrane-based absorber
dc.type article
dc.relation.publisherversion http://dx.doi.org/10.1016/j.applthermaleng.2015.12.074
dc.subject.eciencia Energías Renovables
dc.identifier.doi 10.1016/j.applthermaleng.2015.12.074
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. ENE2013-43131-R
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 409
dc.identifier.publicationlastpage 419
dc.identifier.publicationtitle Applied thermal engineering
dc.identifier.publicationvolume 98
dc.identifier.uxxi AR/0000018067
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