dc.creatorVillagrán, Edwin
dc.creatorBojacá, Carlos
dc.date.accessioned2022-07-11T14:57:44Z
dc.date.accessioned2022-09-23T18:25:15Z
dc.date.available2022-07-11T14:57:44Z
dc.date.available2022-09-23T18:25:15Z
dc.date.created2022-07-11T14:57:44Z
dc.identifier0034-737X
dc.identifierhttps://www.semanticscholar.org/paper/Study-using-a-CFD-approach-of-the-efficiency-of-a-a-Villagran-Bojac%C3%A1/0f70217b5435376526424c3dfded5f1ae368c340
dc.identifierhttp://hdl.handle.net/20.500.12010/27486
dc.identifierhttp://expeditiorepositorio.utadeo.edu.co
dc.identifier10.1590/0034-737X202067050002
dc.identifier
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3500538
dc.description.abstractThe thermal efficiency of naturally ventilated greenhouses is limited due to the permanent exchange of air through the vents, especially during the night hours. The objective of the work consisted in evaluating a system of inflatable air ducts that close the roof vents during the night as a strategy to reduce the energy loss during these hours. For the development of this work, we applied the computational fluid dynamics (CFD) method to a passive multi span greenhouse operating under the dominant nocturnal climatic conditions of the Bogota savannah (Colombia). The results indicated that the use of the ducts system reduces the value of the negative thermal gradient between the interior and exterior of the greenhouse. The CFD model used was validated by comparing experimental data and simulated data and by calculating goodness-of-fit parameters, finding that the numerical model predicts satisfactorily and with an adequate degree of fit the actual thermal behavior of the greenhouse evaluated.
dc.languageeng
dc.publisherBogotá : Universidad de Bogotá Jorge Tadeo Lozano, 2020
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightsAbierto (Texto Completo)
dc.subjectNumerical simulation
dc.subjectFinite volume method
dc.subjectGreenhouse climate optimization
dc.titleStudy using a CFD approach of the efficiency of a roof ventilation closure system in a multi-tunnel greenhouse for nighttime microclimate optimization


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