Assessment for the Age-Of-The-Air and Ventilation Efficiency in Confined Outdoor Spaces through Computational Fluid Dynamics Techniques

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 posit...

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Main Authors: Miguel Ángel Padilla-Marcos, Meiss Alberto
Format: Article
Language:English
Published: MDPI AG 2018-07-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/11/8/1932
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author Miguel Ángel Padilla-Marcos
Meiss Alberto
author_facet Miguel Ángel Padilla-Marcos
Meiss Alberto
author_sort Miguel Ángel Padilla-Marcos
collection DOAJ
description 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.
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spelling doaj.art-3fc0f2480c2749e5aa59248642ac02752022-12-22T04:01:39ZengMDPI AGEnergies1996-10732018-07-01118193210.3390/en11081932en11081932Assessment for the Age-Of-The-Air and Ventilation Efficiency in Confined Outdoor Spaces through Computational Fluid Dynamics TechniquesMiguel Ángel Padilla-Marcos0Meiss Alberto1Department of Building Technologies, Universidad de Valladolid, 47014 Valladolid, SpainDepartment of Building Technologies, Universidad de Valladolid, 47014 Valladolid, SpainAn 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.http://www.mdpi.com/1996-1073/11/8/1932age-of-the-airventilation efficiencyComputation Fluid Dynamicsoutdoor spacewind tunnel validation
spellingShingle Miguel Ángel Padilla-Marcos
Meiss Alberto
Assessment for the Age-Of-The-Air and Ventilation Efficiency in Confined Outdoor Spaces through Computational Fluid Dynamics Techniques
Energies
age-of-the-air
ventilation efficiency
Computation Fluid Dynamics
outdoor space
wind tunnel validation
title Assessment for the Age-Of-The-Air and Ventilation Efficiency in Confined Outdoor Spaces through Computational Fluid Dynamics Techniques
title_full Assessment for the Age-Of-The-Air and Ventilation Efficiency in Confined Outdoor Spaces through Computational Fluid Dynamics Techniques
title_fullStr Assessment for the Age-Of-The-Air and Ventilation Efficiency in Confined Outdoor Spaces through Computational Fluid Dynamics Techniques
title_full_unstemmed Assessment for the Age-Of-The-Air and Ventilation Efficiency in Confined Outdoor Spaces through Computational Fluid Dynamics Techniques
title_short Assessment for the Age-Of-The-Air and Ventilation Efficiency in Confined Outdoor Spaces through Computational Fluid Dynamics Techniques
title_sort assessment for the age of the air and ventilation efficiency in confined outdoor spaces through computational fluid dynamics techniques
topic age-of-the-air
ventilation efficiency
Computation Fluid Dynamics
outdoor space
wind tunnel validation
url http://www.mdpi.com/1996-1073/11/8/1932
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