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Cost-optimized energy-efficient building envelope measures for a multi-storey residential building in a cold climate
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggteknik (BY).
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggd miljö och energiteknik (BET).
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggd miljö och energiteknik (BET). (SBER)
2019 (engelsk)Inngår i: Innovative Solutions for Energy Transitions: Proceedings of the 10th International Conference on Applied Energy (ICAE2018) / [ed] Yan, J; Yang, HX; Li, H; Chen, X, Elsevier, 2019, Vol. 158, s. 3760-3767Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

In this study we analyse cost-optimal building envelope measures including insulation for attic roof, ground floor and exterior walls, and efficient windows and doors for new buildings. The analysis is based on a multi-storey building in south of Sweden with an expected lifetime of at least 100 years. We integrate dynamic energy simulation, total and marginal economic analysis, and consider different scenarios of real discount rates and annual energy price increases. Our analysis shows that cost-optimal thicknesses of insulations for the building envelope elements are significantly higher than those required to meet the current Swedish building code’s minimum energy requirements. For windows, the cost-optimal U-value is about the same as required to fulfil the minimum requirement of the Swedish building code. Overall, large energy and cost savings are achieved when the cost-optimal measures are cumulatively implemented. Compared to the reference, annual space heating reduction of 28-43% is achieved for the building with the cost-optimal measures under the analysed period of 50 years. The cost savings varied between 21 and 188 k€.

sted, utgiver, år, opplag, sider
Elsevier, 2019. Vol. 158, s. 3760-3767
Serie
Energy Procedia, E-ISSN 1876-6102
HSV kategori
Forskningsprogram
Teknik, Byggteknik
Identifikatorer
URN: urn:nbn:se:lnu:diva-81980DOI: 10.1016/j.egypro.2019.01.879ISI: 000471031704020Scopus ID: 2-s2.0-85063904812OAI: oai:DiVA.org:lnu-81980DiVA, id: diva2:1305148
Konferanse
10th International Conference on Applied Energy (ICAE2018), 22-25 August 2018, Hong Kong, China
Tilgjengelig fra: 2019-04-15 Laget: 2019-04-15 Sist oppdatert: 2019-08-29bibliografisk kontrollert

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