Artículo
Assessment of ventilation rates inside educational buildings in Southwestern Europe: Analysis of implemented strategic measures
Autor/es | Aguilar Aguilera, Antonio Jesús
Hoz Torres, María Luisa de la Costa, Nélson Arezes, Pedro Martínez Aires, María Dolores Ruiz Padillo, Diego Pablo |
Departamento | Universidad de Sevilla. Departamento de Construcciones Arquitectónicas II (ETSIE) |
Fecha de publicación | 2022-07-01 |
Fecha de depósito | 2024-06-18 |
Publicado en |
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Resumen | The pandemic caused by COVID-19 has highlighted the need to ensure good indoor air quality. Public buildings (educational buildings in particular) have come under the spotlight because students, teachers and staff spend ... The pandemic caused by COVID-19 has highlighted the need to ensure good indoor air quality. Public buildings (educational buildings in particular) have come under the spotlight because students, teachers and staff spend long periods of the day indoors. This study presents a measurement campaign for the assessment of ventilation rate (VR) and ventilation strategies in educational buildings in Southwestern Europe, Portugal and Spain. A representative sample of the teaching spaces of the Azurém Campus (Guimarães, Portugal) and the Fuentenueva Campus (Granada, Spain) have been analyzed. Natural ventilation is the predominant ventilation strategy in these spaces, being the most common strategy in educational buildings in Europe. VR was estimated under different configurations, using the CO2 decay method. Subsequently, the CO2 concentration was estimated according to occupancy and the probability of infection risk was calculated using the Wells-Riley equation. The obtained VR varied between 2.9 and 20.1 air change per hour (ACH) for natural cross ventilation, 2.0 to 5.1 ACH for single-sided ventilation and 1.8 to 3.5 for mechanically ventilated classrooms. Large differences in CO2 concentrations were verified, depending on the analyzed ventilation strategy, ranging from 475 to 3903 ppm for the different scenarios. However, the probability of risk was less than 1% in almost all of the classrooms analyzed. The results obtained from the measurement campaign showed that the selection of an appropriate ventilation strategy can provide sufficient air renewal and maintain a low risk of infection. Ventilation strategies need to be reconsidered as a consequence of the health emergency arising from the COVID-19 pandemic. |
Agencias financiadoras | Ministerio de Ciencia, Innovación y Universidades (MICINN). España Consejo General de la Arquitectura Técnica (CGATE) Junta de Andalucía Agencia Estatal de Investigación. España European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) |
Identificador del proyecto | B-TEP-362-UGR18
PID2019-108761RB-I00 |
Cita | Aguilar Aguilera, A.J., Hoz Torres, M.L.d.l., Costa, N., Arezes, P., Martínez Aires, M.D. y Ruiz Padillo, D.P. (2022). Assessment of ventilation rates inside educational buildings in Southwestern Europe: Analysis of implemented strategic measures. Journal of Building Engineering, 51 (104204). https://doi.org/10.1016/j.jobe.2022.104204. |
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