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Primary energy use in buildings in a Swedish perspective
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Fluid and Climate Technology. Dalarna University, Sweden.
2016 (English)In: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 130, 202-209 p.Article in journal (Refereed) Published
Abstract [en]

The building sector accounts for a large part of the energy use in Europe and is a sector where the energy efficiency needs to improve in order to reach the EU energy and climate goals. The energy efficiency goal is set in terms of primary energy even though there are different opinions on how to calculate primary energy. When determining the primary energy use in a building several assumptions are made regarding allocation and the value of different energy sources. In order to analyze the difference in primary energy when different methods are used, this study use 16 combinations of different assumptions to calculate the primary energy use for three simulated heating and ventilations systems in a building. The system with the lowest primary energy use differs depending on the method used. Comparing a system with district heating and mechanical exhaust ventilation with a system with district heating, mechanical exhaust ventilation and exhaust air heat pump, the former has a 40% higher primary energy use in one scenario while the other has a 320% higher in another scenario. This illustrates the difficulty in determining which system makes the largest contribution to fulfilling the EU energy and climate goals.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 130, 202-209 p.
Keyword [en]
Air heat recovery, District heating, Energy efficiency, Heat pump, Primary energy, Primary energy factors, Heat pump systems, Heating, Ventilation, Ventilation exhausts, Waste heat, Building sectors, Different energy sources, Exhaust air, Heat pumps, Large parts, Mechanical exhausts, Primary energies, Primary energy use
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-195239DOI: 10.1016/j.enbuild.2016.08.026ISI: 000385323900019ScopusID: 2-s2.0-84983483204OAI: oai:DiVA.org:kth-195239DiVA: diva2:1047245
Funder
Knowledge Foundation
Note

QC 20161117

Available from: 2016-11-17 Created: 2016-11-02 Last updated: 2016-11-17Bibliographically approved

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