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How Will Mechanical Night Ventilation Affect the Electricity Use and the Electrical Peak Power Demand in 30 Years? – A Case Study of a Historic Office Building in Sweden
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology. Gavlefastigheter AB.ORCID iD: 0000-0001-9806-4456
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology.ORCID iD: 0000-0003-1832-9827
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology.ORCID iD: 0000-0001-9076-0801
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology.ORCID iD: 0000-0002-4007-3074
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2023 (English)In: Proceedings of the 5th International Conference on Building Energy and Environment, Singapore: Springer, 2023Conference paper, Published paper (Refereed)
Abstract [en]

This study aims at assessing how well a mechanical night ventilation of today, will cope with delivering acceptable thermal comfort while minimizing the electricity use and the electrical peak power demand for cooling in a historic office building in Sweden at both typical current climate and typical future climate in 2050s. The method includes numerical study in IDA-ICE simulation program using the typical current and future climate profiles. The results show that, for coefficient of performance of 3 and specific fan power of 1.5 kW/(m3/s), it would be possible to lower the electrical peak power demand and the electricity use in cooling machine by up to 2.2 kW (13%) and 1.4 MWh (48%) by night ventilation rate of 2.1 lit/(s·m2) at typical future climate in 2050s. Corresponding figures for typical current climate are 4.6 kW (36%) and 0.9 MWh (72%) owing to cooler nights and more diurnal temperature differences. 

Place, publisher, year, edition, pages
Singapore: Springer, 2023.
Series
Environmental Science and Engineering, ISSN 1863-5520, E-ISSN 1863-5539
Keywords [en]
Mechanical night ventilation, Future climates, Resilient energy systems, Building energy simulation (BES), IDA Indoor Climate and Energy (IDA-ICE)
National Category
Energy Systems
Research subject
Sustainable Urban Development
Identifiers
URN: urn:nbn:se:hig:diva-39651DOI: 10.1007/978-981-19-9822-5_278Scopus ID: 2-s2.0-85172739094ISBN: 978-981-19-9821-8 (print)ISBN: 978-981-19-9822-5 (electronic)OAI: oai:DiVA.org:hig-39651DiVA, id: diva2:1685665
Conference
5th International Conference on Building Energy and Environment (COBEE2022), Concordia University, Montreal, Canada, 25-29 July 2022
Funder
Knowledge Foundation, 20150133Available from: 2022-08-03 Created: 2022-08-03 Last updated: 2023-10-09Bibliographically approved

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Khosravi Bakhtiari, HosseinSayadi, SanaAkander, JanHayati, AbolfazlCehlin, Mathias

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