RT info:eu-repo/semantics/article
T1 Proposal for a simplified CFD procedure for obtaining patterns of the age of air in outdoor spaces for the natural ventilation of buildings
A1 Padilla Marcos, Miguel Ángel
A1 Meiss Rodríguez, Alberto José
A1 Feijó Muñoz, Jesús
K1 Age of the outdoor air
K1 Computational Fluid Dynamics (CFD) method
K1 Ideal control domain
K1 Wind profile
K1 Indoor air quality
K1 6201 Arquitectura
K1 3305 Tecnología de la Construcción
AB Built urban environments modify the air quality of the natural ventilation processes inbuildings. The experimental assessment of outdoor air change (OACH) processes is complex dueto the air volumes involved. The quality of the OACH can be analysed through the ventilationefficiency concept, which has been extensively studied in order to characterize the ventilation ofindoor spaces. Ventilation efficiency through the age-of-the-air concept assesses the air-changecapacity of a certain space. A procedure formulation for obtaining an adequate control domain (CD)to evaluate outdoor air change efficiency (OACE) is proposed. A methodology in two phases ispresented: first, an evaluation stage, in which the outdoor air behaviour patterns are studied; then,a second phase where an ideal control domain (ICD) is obtained in order to comparatively assessseveral cases in similar urban environments. The outcomes determine a proposed ICD for evaluatingthe design of efficiently ventilated buildings in open urban built environments. The methodology ofvalidation proposed simplifies the assessment of the building shape and its impact on the qualityof the OACH by the OACE. The suggested ICD has dimensions of L = 5H; D = 3H; and T = 2H.ICD enables the representation of the air behaviour and fulfils the imposed requirements to evaluateefficiency with a mean accuracy lower than 0.6%.
PB MDPI
SN 1996-1073
YR 2017
FD 2017
LK https://uvadoc.uva.es/handle/10324/57899
UL https://uvadoc.uva.es/handle/10324/57899
LA eng
NO Energies, 2017, vol. 10, n. 9, p. 1252
NO Producción Científica
DS UVaDOC
RD 19-oct-2024