Experimental performance comparison of three flat sheet membranes operating in an adiabatic microchannel absorber

García Hernando, Néstor; Venegas Bernal, María Carmen; Vega Blázquez, Mercedes de

Publication:
Experimental performance comparison of three flat sheet membranes operating in an adiabatic microchannel absorber

dc.affiliation.dpto	UC3M. Departamento de Ingeniería Térmica y de Fluidos	es
dc.affiliation.grupoinv	UC3M. Grupo de Investigación: Tecnologías Apropiadas para el Desarrollo Sostenible	es
dc.affiliation.grupoinv	UC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticos	es
dc.contributor.author	García Hernando, Néstor
dc.contributor.author	Venegas Bernal, María Carmen
dc.contributor.author	Vega Blázquez, Mercedes de
dc.contributor.funder	Ministerio de Economía y Competitividad (España)	es
dc.date.accessioned	2021-04-23T09:33:34Z
dc.date.available	2021-04-23T09:33:34Z
dc.date.issued	2019-04
dc.description.abstract	A microchannel absorber working adiabatically with the H2O-LiBr pair was tested experimentally using three different nanofibrous flat membranes separating the vapour from the solution. Pore diameters of the membranes were 1 and 0.45 mu m, and thicknesses vary from 25 to 175 mu m. The experimental absorption rates varied from 1.5.10(-3) to 2.6.10(-3) kg/m(2) s varying linearly with the solution mass flow rate circulating through the channels. The reduction in pore diameter from 1 mu m to 0.45 mu m induced the need for higher pressure potential or solution mass flow rate to obtain similar performance. Relationships between changes in diameter pore and membrane thickness from previous models were used to quantify the effect of these membranes characteristics on the absorption ratio. The analytical results compared well with our experiments. In the present design, the solution film thickness was 150 mu m and the solution mass transfer resistance dominated the process. The experimental overall resistances, compared with calculated values from correlations used in previous models, showed differences below 30%.	en
dc.format.extent	9
dc.identifier.bibliographicCitation	García-Hernando, N., Venegas, M. & de Vega, M. (2019). Experimental performance comparison of three flat sheet membranes operating in an adiabatic microchannel absorber. Applied Thermal Engineering, vol. 152, pp. 835–843.	en
dc.identifier.doi	https://doi.org/10.1016/j.applthermaleng.2019.02.129
dc.identifier.issn	1359-4311
dc.identifier.publicationfirstpage	835
dc.identifier.publicationlastpage	843
dc.identifier.publicationtitle	Applied Thermal Engineering	en
dc.identifier.publicationvolume	152
dc.identifier.uri	https://hdl.handle.net/10016/32469
dc.identifier.uxxi	AR/0000023664
dc.language.iso	eng
dc.publisher	Elsevier	en
dc.relation.projectID	Gobierno de España. DPI2017-83123-R	es
dc.rights	© 2019 Elsevier Ltd.	en
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 España	*
dc.rights.accessRights	open access	en
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/es/	*
dc.subject.eciencia	Energías Renovables	en
dc.subject.other	Cooling absorption	en
dc.subject.other	Microchannel absorber	en
dc.subject.other	Membranes	en
dc.subject.other	H2O-LiBr	en
dc.subject.other	Absorption	en
dc.subject.other	Design	en
dc.subject.other	Impact	en
dc.title	Experimental performance comparison of three flat sheet membranes operating in an adiabatic microchannel absorber	en
dc.type	research article	*
dc.type.hasVersion	AM	*
dspace.entity.type	Publication