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dc.contributor.authorBaïri, Abderrahmane
dc.contributor.authorAlilat, Nacim
dc.contributor.authorMartín Garín, Alexánder
dc.contributor.authorRoseiro, Luis
dc.contributor.authorMillán García, José Antonio
dc.date.accessioned2021-09-30T08:26:42Z
dc.date.available2021-09-30T08:26:42Z
dc.date.issued2021-07
dc.identifier.citationAbderrahmane Baïri, Nacim Alilat, Alexander Martín-Garín, Luis Roseiro & José-Antonio Millán-García (2021) Improving Building’s Thermal Performance by Means of Porous Media – An Experimental Free Convection Work, Heat Transfer Engineering, 42:12, 1059-1066, DOI: 10.1080/01457632.2020.1766252es
dc.identifier.issn01457632
dc.identifier.urihttp://hdl.handle.net/20.500.12251/1918
dc.description.abstractThe thermal efficiency of the modified Trombe-wall system proposed in this work is improved compared to its conventional version thanks to the adjunction of a porous material to the absorber wall. Thermal measurements were made in a wide Rayleigh number range, with high values reaching 4.52 x 10(9). The ratio between the matrix's thermal conductivity of the porous material and that of the air varies between 1 (without porous medium, conventional Trombe-wall system) and about 1888. Moreover, the aspect ratio of the active cavity varies in the 0.1-0.3 range. Influence of these physical parameters on the free convective heat transfer occurring in the active cavity are quantified for this new assembly and compared to the conventional one. The results show that the average convective heat transfer systematically increases with the ratio of thermal conductivities for any Rayleigh number and cavity's aspect ratio. Furthermore, the simple modification makes it possible to increase the overall thermal efficiency between 4% and 23% on average. This work complements and confirms the numerical results of recent studies realized by means of the control volume method.es
dc.language.isoenges
dc.publisherTaylor & Francises
dc.titleImproving Building’s Thermal Performance by Means of Porous Media–An Experimental Free Convection Workes
dc.typearticlees
dc.identifier.doi10.1080/01457632.2020.1766252
dc.identifier.urlhttps://doi.org/10.1080/01457632.2020.1766252es
dc.issue.number12es
dc.journal.titleHeat Transfer Engineeringes
dc.page.initial1059es
dc.page.final1066es
dc.subject.keywordMuro Trombees
dc.subject.keywordAislamiento térmicoes
dc.subject.keywordComportamiento térmicoes
dc.subject.keywordEnvolvente de edificioes
dc.subject.keywordEnsayos (propiedades o materiales)es
dc.subject.keywordConductividad térmicaes
dc.subject.keywordTransmisión de calor en edificaciónes
dc.subject.keywordAhorro energéticoes
dc.subject.keywordTransferencia de calor por convecciónes
dc.subject.keywordSimulación energética - herramientases
dc.subject.unesco2211.29 Propiedades Térmicas de Los Sólidoses
dc.subject.unesco2213.10 Relaciones Termodinámicases
dc.subject.unesco3311.16 Instrumentos de Medida de la Temperaturaes
dc.subject.unesco3312.08 Propiedades de Los Materialeses
dc.subject.unesco3312.12 Ensayo de Materialeses
dc.subject.unesco3322.04 Transmisión de Energíaes
dc.volume.number42es


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