Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/90576
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Cardoso, Vitor E. M. | por |
dc.contributor.author | Simoes, M. Lurdes | por |
dc.contributor.author | Ramos, Nuno M. M. | por |
dc.contributor.author | Almeida, Ricardo M. S. F. | por |
dc.contributor.author | Almeida, Manuela Guedes de | por |
dc.contributor.author | Conceicao, Ligia | por |
dc.date.accessioned | 2024-04-03T18:00:58Z | - |
dc.date.available | 2024-04-03T18:00:58Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | Cardoso, V. E. M., Simões, M. L., Ramos, N. M. M., Almeida, R. M. S. F., Almeida, M., & Conceição, L. (2022, January). Impact of atmospherical stability and intra-hour variation of meteorological data in the variability of building air change rates. Building and Environment. Elsevier BV. http://doi.org/10.1016/j.buildenv.2021.108528 | por |
dc.identifier.issn | 0360-1323 | por |
dc.identifier.uri | https://hdl.handle.net/1822/90576 | - |
dc.description.abstract | In contrast with structural engineering, where the focus for design is on extreme values, for the proper assessment and modelling of air change rates in natural ventilation and infiltration, one must use the full range of input variables. Most of the modelling in infiltration research relies on hourly datasets for air infiltration balance. This consideration overlooks the intra-hour variability on meteorological variables. Additionally, it is customary to assume unchanging neutral atmospheric conditions when modelling, which affects the calculated airflows. This work intends to detail and quantify these effects in a case study representative of an average single-family dwelling in a Southern European climate setup. By comparing four setups with an increasing degree of complexity, a median of 0.04 h(-1) of the hourly standard deviations in air change rates (ACH) is attributed to the time step effect. Approximately 43% of the occurrences experienced non-neutral atmospheric stability, skewing for stable conditions. This effect contributed to differences in the ACHs ranging from-0.202 to 0.131 h(-1) at the 5% and 95% quantiles. Overall, by using hourly uniform distributions and smart sampling of meteorological variables, one ensures that the values in between and others potentially occurring around the boundaries are being considered for air change rates calculation, and therefore providing a more detailed picture of actual conditions. | por |
dc.description.sponsorship | This work was financially supported by: Base Funding -UIDB/04708/2020 and Programmatic Funding - UIDP/04708/2020 of the CONSTRUCT -Instituto de I&D em Estruturas e Construcoes - funded by national funds through the FCT/MCTES (PIDDAC). The author would like to acknowledge the support of FCT - Fundacao para a Ciencia e a Tecnologia, the funding of the Doctoral Grant PD/BD/135162/2017, through the Doctoral Programme EcoCoRe.The authors also acknowledge Dr. Ricardo Deus and the Portuguese Institute for Sea and Atmosphere, I. P. (IPMA, IP) for providing the meteorological dataset for this work. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04708%2F2020/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04708%2F2020/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/POR_NORTE/PD%2FBD%2F135162%2F2017/PT | por |
dc.rights | openAccess | por |
dc.subject | Air infiltration | por |
dc.subject | Meteorological data | por |
dc.subject | Airtightness | por |
dc.subject | Air change rate | por |
dc.subject | Atmospheric stability | por |
dc.subject | Wind shear coefficient | por |
dc.title | Impact of atmospherical stability and intra-hour variation of meteorological data in the variability of building air change rates | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0360132321009239 | por |
oaire.citationVolume | 207 | por |
dc.date.updated | 2024-04-03T15:19:40Z | - |
dc.identifier.doi | 10.1016/j.buildenv.2021.108528 | por |
dc.subject.fos | Engenharia e Tecnologia::Engenharia Civil | por |
dc.subject.wos | Science & Technology | - |
sdum.export.identifier | 16029 | - |
sdum.journal | Building and Environment | por |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
BAE_2022_Vítor Cardoso_Impact of atmospherical stability.pdf | 8,19 MB | Adobe PDF | Ver/Abrir |