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dc.contributor.authorBaïri, Abderrahmane
dc.contributor.authorMartín Garín, Alexánder
dc.contributor.authorAdeyeye, K.
dc.contributor.authorShe, K.
dc.contributor.authorMillán García, José Antonio
dc.identifier.citationBaïri, A., Martín Garín, A., Adeyeye, K., She, K. y Millán García, J. A. (2020). Enhancement of natural convection for improvement of Trombe wall performance. An experimental study. Energy and Buildings, 211, 109788.
dc.description.abstractThis experimental work shows that the natural convective heat transfer in the active enclosure of a conventional Trombe wall assembly is enhanced by the interposition of transparent and vertical partitions. Quantification of the average Nusselt number corresponding to both versions with and without partitions was carried out by means of a 1/5 scale assembly. The glass cover is maintained isothermal at cold temperature while the active wall generates a variable heat flux simulating the incident solar radiation. The distance between the two active and parallel walls is variable. Four ratios between this distance and the height of the wall are considered, associated with a wide range of Rayleigh number reaching 4.1 x 10(9). An error calculation is carried out for all the processed configurations, taking into account the experimental uncertainties of the measured physical parameters. The maximum error found on the average Nusselt number is low, of about 5%. Measurements made by means of an interstitial medium without partitions are consistent with the results of other work carried out by experimental and numerical approaches in specific ranges of Rayleigh number. This study reveals the partitions effectiveness, since the natural convective heat transfer's increase lies between 10.0% and 14.4% according to the considered configuration. Correlations are proposed in the present work in order to calculate the average natural convective Nusselt number for the conventional Trombe wall without partitions and for its improved version, for any aspect ratio and in the whole range of the considered Rayleigh number. They contribute to the optimization of the thermal design of this interesting assembly. (C) 2020 Elsevier B.V. All rights
dc.publisherElsevier Ltdes
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.titleEnhancement of natural convection for improvement of Trombe wall performance. An experimental studyes
dc.journal.titleEnergy and Buildingses
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.keywordSimulación energética - herramientases
dc.subject.keywordAhorro energéticoes
dc.subject.keywordCubiertas - Construcciónes
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.subject.unesco2501.21 Simulación Numéricaes
dc.subject.unesco3312.06 Vidrioes

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