Performance assessment of ventilative and radiant cooling systems in office buildings during extreme weather conditions under a changing climate

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorVelashjerdi Farahani, Azinen_US
dc.contributor.authorJokisalo, Juhaen_US
dc.contributor.authorKorhonen, Nataliaen_US
dc.contributor.authorJylhä, Kirstien_US
dc.contributor.authorKosonen, Ristoen_US
dc.contributor.authorLestinen, Samien_US
dc.contributor.departmentDepartment of Mechanical Engineeringen
dc.contributor.groupauthorEnergy efficiency and systemsen
dc.contributor.organizationFinnish Meteorological Instituteen_US
dc.date.accessioned2022-08-24T07:46:00Z
dc.date.available2022-08-24T07:46:00Z
dc.date.issued2022-10-01en_US
dc.description| openaire: EC/H2020/856602/EU//FINEST TWINS | openaire: EC/H2020/894511/EU//SUREFIT Funding Information: This study is part of the following projects: HEATCLIM (Heat and health in the changing climate, Grant Numbers. 329306, 329307) funded by the Academy of Finland within the CLIHE (Climate change and health) program, FINEST Twins funded by the European Union (Horizon 2020 program , Grant No. 856602 ), and the Estonian government , SUREFIT (Sustainable solutions for affordable retrofit of domestic buildings) funded by European Union (Horizon 2020 program , Grant No. 894511 ). and ACCC (Atmosphere and Climate Competence Center) funded by the Academy of Finland (Flagship Grant No. 337552 ). Publisher Copyright: © 2022 The Authors
dc.description.abstractThe buildings’ HVAC system design and indoor conditions are affected by climate change. This study aimed to investigate the effects of climate change on office buildings’ cooling system design and indoor temperature conditions in the Nordic cold climate. Thus, two types of mechanical cooling systems, the all-air (ventilative) and the air-water (radiant), are designed in a new office building by using new cooling design days (1% risk) of the current and future climate of southern Finland. Moreover, dynamic simulations of energy and indoor conditions are performed using different average and extreme climate scenarios. The results showed that the dimensioning cooling power demand with the current climate design day (1% risk level) in the all-air system is higher than in the air-water system by about 18% and it increases significantly when using future climate design days depending on the climate scenarios. The annual maximum cooling power demand in the current and future average climate is below the current climate dimensioning power for both systems. While during extreme weather conditions of the current and future climate, it is higher than the current climate dimensioning power for both systems. Despite the increase in cooling power demands, the dimensioned cooling system using the current climate design day can provide a thermal comfort level of category I of EN16798-1 in all the spaces during the current and future average climate, and category Π during the current and future extreme weather conditions. Thus, ventilative and radiant cooling systems equally perform under a changing climate.en
dc.description.versionPeer revieweden
dc.format.extent22
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationVelashjerdi Farahani, A, Jokisalo, J, Korhonen, N, Jylhä, K, Kosonen, R & Lestinen, S 2022, ' Performance assessment of ventilative and radiant cooling systems in office buildings during extreme weather conditions under a changing climate ', Journal of Building Engineering, vol. 57, 104951 . https://doi.org/10.1016/j.jobe.2022.104951en
dc.identifier.doi10.1016/j.jobe.2022.104951en_US
dc.identifier.issn2352-7102
dc.identifier.otherPURE UUID: 5015d921-2ae8-4434-acc2-b2f099e70326en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/5015d921-2ae8-4434-acc2-b2f099e70326en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85135685205&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/87131652/1_s2.0_S2352710222009627_main.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/116173
dc.identifier.urnURN:NBN:fi:aalto-202208244988
dc.language.isoenen
dc.publisherElsevier BV
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/894511/EU//SUREFIT Funding Information: This study is part of the following projects: HEATCLIM (Heat and health in the changing climate, Grant Numbers. 329306, 329307) funded by the Academy of Finland within the CLIHE (Climate change and health) program, FINEST Twins funded by the European Union (Horizon 2020 program , Grant No. 856602 ), and the Estonian government , SUREFIT (Sustainable solutions for affordable retrofit of domestic buildings) funded by European Union (Horizon 2020 program , Grant No. 894511 ). and ACCC (Atmosphere and Climate Competence Center) funded by the Academy of Finland (Flagship Grant No. 337552 ). Publisher Copyright: © 2022 The Authorsen_US
dc.relation.ispartofseriesJournal of Building Engineeringen
dc.relation.ispartofseriesVolume 57en
dc.rightsopenAccessen
dc.subject.keywordClimate changeen_US
dc.subject.keywordCommercial buildingsen_US
dc.subject.keywordDesign outdoor conditionsen_US
dc.subject.keywordDimensioning cooling poweren_US
dc.subject.keywordRadiant cooling panelen_US
dc.subject.keywordVariable air volume systemen_US
dc.titlePerformance assessment of ventilative and radiant cooling systems in office buildings during extreme weather conditions under a changing climateen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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