2026-04-28T19:30:25Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/579022022-12-22T20:00:25Zcom_10324_1167com_10324_931com_10324_894col_10324_1238

Assessment for the age-of-the-air and ventilation efficiency in confined outdoor spaces through computational fluid dynamics techniques Padilla Marcos, Miguel Ángel Meiss Rodríguez, Alberto Producción Científica An experimentally validated numerical method for evaluating the suitability of an urban design with regard to its capacity to provide the optimum air quality for its occupants through the confined outdoor spaces is proposed. Eight possible confined outdoor spaces are defined according to their position with regard to the built elements, laterally delimited by the envelope surfaces of the neighbouring buildings. This work focuses on the definition of a procedure capable of analysing outdoor air change quality according to the age-of-the-air concept. The obtained results show that the confined outdoor spaces that are exposed to the wind action are more predisposed to reduce the mean age-of-the-air that they contain. For the analysed cases, a considerable improvement of up to 78.68% in the air change quality can be obtained by taking into account wind exposure criteria in relation to its shape and urban density, which is classified for this purpose. 2022-12-22T10:30:09Z 2022-12-22T10:30:09Z 2018 info:eu-repo/semantics/article Energies, 2018, vol. 11, n. 8, p. 1932 1996-1073 https://uvadoc.uva.es/handle/10324/57902 10.3390/en11081932 1932 8 Energies 11 1996-1073 eng https://www.mdpi.com/1996-1073/11/8/1932 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ © 2018 The Author(s) Atribución 4.0 Internacional MDPI SI