LAPSE:2023.35411
Published Article
LAPSE:2023.35411
Investigating Energy Use in a City District in Nordic Climate Using Energy Signature
Martin Eriksson, Jan Akander, Bahram Moshfegh
April 28, 2023
This paper focuses on multi-family buildings in a Swedish city district, erected between 1965 and 1973, which are now in need of renovation. For the two types of multi-family buildings in the district, tower buildings and low-rise buildings, dynamic energy use is predicted by using an energy signature method. The energy signature is then used to calculate the primary energy use number of the building stock, according to calculations methods dictated by Swedish building regulations. These regulations are also used to assess which multi-family buildings are in need of renovation, based on the buildings’ primary energy use. For buildings that need energy renovations, it is simulated so that the energy use of each multi-family building complies with these same building regulations. The proposed methodology for simulating energy renovation also determines new energy signature parameters, related to building heat loss coefficient, balance temperature and domestic hot water usage. The effects of simulated renovation are displayed in a duration diagram, revealing how a large-scale renovation affects the district’s heat load in different annual periods, which affects the local district heating system. Sensitivity analysis is also performed before and after simulated energy renovation.
Keywords
building stock, district energy use, district heating, energy renovation, energy signature method, multi-family buildings
Suggested Citation
Eriksson M, Akander J, Moshfegh B. Investigating Energy Use in a City District in Nordic Climate Using Energy Signature. (2023). LAPSE:2023.35411
Author Affiliations
Eriksson M: Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, University of Gävle, 801 76 Gävle, Sweden [ORCID]
Akander J: Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, University of Gävle, 801 76 Gävle, Sweden [ORCID]
Moshfegh B: Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, University of Gävle, 801 76 Gävle, Sweden; Division of Energy Systems, Department of Management and Engineering, Linköpin
Journal Name
Energies
Volume
15
Issue
5
First Page
1907
Year
2022
Publication Date
2022-03-05
Published Version
ISSN
1996-1073
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Original Submission
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PII: en15051907, Publication Type: Journal Article
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LAPSE:2023.35411
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doi:10.3390/en15051907
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Apr 28, 2023
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CC BY 4.0
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