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Cooling Demand Reduction Approaches in a Nearly Zero Energy Building for Future City District in Central-Sweden
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: 0000-0002-4007-3074
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: 0000-0003-2023-689x
2022 (English)In: Building Simulation Conference Proceedings, IBPSA , 2022, p. 1413-1420Conference paper, Published paper (Refereed)
Abstract [en]

The increase in population and living standards, as well as global warming and heatwaves due to climate change, have created a challenge to meet the cooling demand in buildings. In this study, the cooling requirement for a multifamily building through simulations in a future city district in central-Sweden was determined. Different air supply set point strategies, window to floor ratio and building rotations were employed to minimize the cooling requirements. The building was modelled so as to meet the Nearly Zero Energy Building (NZEB) requirements. Window to floor ratio of 10% with a piecewise proportional controller for supply temperature was depicted as appropriate for the building. A 45° rotation of the building increased the cooling demand. The cooling demand of the building increased by employing the extreme climate condition, as a representative for future climate, with factors 3.8 and 6.4 for cooling set points 25°C and 27°C for window to floor ratio 10%. This implies the need for a resilient building to withstand future climate conditions. The requirement to update the climate files was also used for decision making in the design process and building regulation. 

Place, publisher, year, edition, pages
IBPSA , 2022. p. 1413-1420
Keywords [en]
Building simulation, multi-family buildings, energy efficiency measure, future weather
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:hig:diva-41603DOI: 10.26868/25222708.2021.30327Scopus ID: 2-s2.0-85151521359ISBN: 9781775052029 (print)OAI: oai:DiVA.org:hig-41603DiVA, id: diva2:1751065
Conference
17th IBPSA Conference on Building Simulation, BS 2021, Bruges, Belgium, 1-3 September 2021
Available from: 2023-04-17 Created: 2023-04-17 Last updated: 2023-09-10Bibliographically approved

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Sayadi, SanaHayati, AbolfazlAkander, JanCehlin, Mathias

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