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District heating and energy efficiency in detached houses of differing size and construction
Mittuniversitetet, Institutionen för teknik och hållbar utveckling.
Mittuniversitetet, Institutionen för teknik och hållbar utveckling. (Ecotechnology)
2009 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 86, no 2, p. 126-134Article in journal (Refereed) Published
Abstract [en]

House envelope measures and conversion of heating systems can reduce primary energy use and CO2 emission in the existing Swedish building stock. We analysed how the size and construction of electrically heated detached houses affect the potential for such measures and the potential for cogenerated district heating. Our starting point was two typical houses built in the 1970s. We altered the floor plans to obtain 6 houses, with heated floor space ranging between 100 and 306 m2. One of the houses was also analysed for three energy standards with differing heat loss rates. CO2 emission, primary energy use and heating cost were estimated after implementing house envelope measures, conversions to other heating systems and changes in the generation of district heat and electricity. The study accounted for primary energy, including energy chains from natural resources to useful heat in the houses. We showed that conversion to district heating based on biomass, together with house envelope measures, reduced the primary energy use by 88% and the CO2 emission by 96%, while reducing the annual societal cost by 7%. The choice of end-use heating system was decisive for the primary energy use, with district heating being the most efficient. Neither house size nor energy standard did significantly change the ranking of the heating systems, either from a primary energy or an economic viewpoint, but did affect the extent of the annual cost reduction after implementing the measures.

Place, publisher, year, edition, pages
2009. Vol. 86, no 2, p. 126-134
Keywords [en]
supply system, residential, house envelope
National Category
Other Environmental Engineering
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-15654DOI: 10.1016/j.apenergy.2008.03.012ISI: 000260269000002Local ID: 6071OAI: oai:DiVA.org:lnu-15654DiVA, id: diva2:455004
Note

VR-Economics

Available from: 2008-11-13 Created: 2011-11-08 Last updated: 2017-12-08Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf