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The Impact on System Performance When Renovating a Multifamily Building Stock in a District Heated Region
Linköpings universitet.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology.
Linköpings universitet.
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2019 (English)In: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, no 8, article id 2199Article in journal (Other academic) Published
Abstract [en]

In Sweden, 90% of multifamily buildings utilize district heat and a large portion is in need of renovation. The aim is to analyze the impact of renovating a multifamily building stock in a district heating and cooling system, in terms of primary energy savings, peak power demands, electricity demand and production, and greenhouse gas emissions on local and global levels. The study analyzes scenarios regarding measures on the building envelope, ventilation, and substitution from district heat to ground source heat pump. The results indicate improved energy performance for all scenarios, ranging from 11% to 56%. Moreover, the scenarios present a reduction of fossil fuel use and reduced peak power demand in the district heating and cooling system ranging from 1 MW to 13 MW, corresponding to 4–48 W/m2 heated building area. However, the study concludes that scenarios including a ground source heat pump generate significantly higher global greenhouse gas emissions relative to scenarios including district heating. Furthermore, in a future fossil-free district heating and cooling system, a reduction in primary energy use will lead to a local reduction of emissions along with a positive effect on global greenhouse gas emissions, outperforming measures with a ground source heat pump.

Place, publisher, year, edition, pages
2019. Vol. 11, no 8, article id 2199
Keywords [en]
district heating, multifamily buildings, renovation, primary energy use, energy system modeling, greenhouse gas emissions
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:hig:diva-31996DOI: 10.3390/su11082199OAI: oai:DiVA.org:hig-31996DiVA, id: diva2:1412193
Available from: 2020-03-05 Created: 2020-03-05 Last updated: 2020-03-05Bibliographically approved

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Amiri, Shahnaz

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CiteExportLink to record
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Citation style
  • apa
  • harvard-cite-them-right
  • ieee
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  • vancouver
  • Other style
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Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
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Output format
  • html
  • text
  • asciidoc
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