Please use this identifier to cite or link to this item: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1010756
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dc.contributor.authorNeves, L.pt_BR
dc.contributor.authorMarques da Silva, F.pt_BR
dc.date.accessioned2018-06-08T15:02:26Zpt_BR
dc.date.accessioned2018-06-21T09:47:34Z-
dc.date.available2018-06-08T15:02:26Zpt_BR
dc.date.available2018-06-21T09:47:34Z-
dc.date.issued2018pt_BR
dc.identifier.citationDOI.ORG/10.1016/j.jweia.2018.05.020pt_BR
dc.identifier.urihttps://repositorio.lnec.pt/jspui/handle/123456789/1010756-
dc.description.abstractThe solar chimney is a stack-induced ventilation strategy used to improve thermal performance in buildings. Besides operating via a buoyancy-driven airflow, even low velocity winds can affect the chimney functioning in both positive and negative ways. In technical literature, though, few studies have considered the influence of wind speed and direction, as well as discharge coefficients and wind pressure coefficients. This paper investigates the effects of wind interference on a solar chimney performance, through different scenarios of wind speed and direction, over a base case model. Wind tunnel experiments and computer simulations using EnergyPlus were carried out to perform qualitative and quantitative analyses of the airflow, as a function of the combined effect of thermal and wind components. Results showed that the airflow rate and distribution pattern at the outlet openings of the solar chimney are influenced by either the thermal gradients and, mainly, by the outdoor wind velocity and direction. A significant reduction in the volumetric flow rate of the chimney is observed due to wind incidence opposite to the inlet opening, even at low velocities, such as 0.6 m/s.pt_BR
dc.language.isoengpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictedAccesspt_BR
dc.subjectSolar chemneypt_BR
dc.subjectBuoyancypt_BR
dc.subjectWind tunnelpt_BR
dc.titleSimulation and measurements of wind interference on a solar chimney performancept_BR
dc.typeworkingPaperpt_BR
dc.description.pages135-145pppt_BR
dc.description.volume179pt_BR
dc.description.sectorDE/NESDEpt_BR
dc.description.magazineJournal of wind engineering and industrial aerodynamicspt_BR
dc.contributor.peer-reviewedSIMpt_BR
dc.contributor.academicresearchersSIMpt_BR
dc.contributor.arquivoNAOpt_BR
Appears in Collections:DE/NESDE - Comunicações a congressos e artigos de revista

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