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Carbon balances for a low energy apartment building with different structural frame materials
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggd miljö och energiteknik (BET).
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggteknik (BY).
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggd miljö och energiteknik (BET).
2019 (engelsk)Inngår i: Innovative Solutions for Energy Transitions: Proceedings of the 10th International Conference on Applied Energy (ICAE2018), Elsevier, 2019, Vol. 158, s. 4254-4261Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

We analyse the life cycle carbon implications of a building, with structural frame of prefabricated concrete, prefabricated modular timber or cross laminated timber (CLT) elements, designed to meet the Swedish passive house criteria. The analysis covers non-biogenic carbon flows related to the building alternatives, over an assumed life time of 80 years. The building alternatives are all modelled to have the same housing service and operation energy demand. Substitution factors, showing the efficiency of CO2 emissions reductions when wood alternatives are used instead of non-wood alternatives, are calculated for the CLT and modular alternatives with reference to the concrete alternative. The results show that the CLT and modular buildings give less carbon emissions to the atmosphere during production and when the buildings are demolished at the end-of-life. Moreover, the wood residues from the production and end-of-life activities for the timber alternatives far exceed that for the concrete alternative. The substitution factors differ slightly between the CLT and the modular alternatives, and are significantly lower when fossil gas is substituted by wood residues instead of fossil coal. In summary, the life cycle carbon emissions are significantly lower for the timber alternatives.

sted, utgiver, år, opplag, sider
Elsevier, 2019. Vol. 158, s. 4254-4261
Serie
Energy Procedia, E-ISSN 1876-6102 ; 158
HSV kategori
Forskningsprogram
Teknik, Byggteknik; Teknik, Hållbar byggd miljö
Identifikatorer
URN: urn:nbn:se:lnu:diva-81982DOI: 10.1016/j.egypro.2019.01.801ISI: 000471031704094Scopus ID: 2-s2.0-85063918532OAI: oai:DiVA.org:lnu-81982DiVA, id: diva2:1305152
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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