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Combined Environmental and Economic Assessment of Energy Efficiency Measures in a Multi-Dwelling Building
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik.ORCID-id: 0000-0002-8704-8538
2019 (Engelska)Ingår i: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 12, nr 13, s. 1-13, artikel-id 2484Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The aim of this study is to assess how different renovation scenarios affect the environmental and economic impacts of a multi-dwelling building in a Nordic climate, how these aspects are correlated and how different energy carriers affect different environmental impact categories. In order to reduce greenhouse gas emissions, the European Union has set an agenda in order to reduce energy use in buildings. New buildings on the European market have a low replacement rate, which makes building renovation an important factor for achieving the European Union goals. In this study, eight renovation strategies were analyzed following the European Committee for Standardization standards for life cycle assessment and life cycle costs of buildings. This study covers all life cycle steps from cradle to grave. The renovation scenarios include combinations of photovoltaics, geothermal heat pumps, heat recovery ventilation and improved building envelopes. Results show that, depending on the energy carrier, reductions in global warming potential can be achieved at the expense of an increased nuclear waste disposal. It also shows that for the investigated renovation strategies in Sweden there is no correlation between the economic and the environmental performance of the building. Changing energy carriers in Sweden in order to reduce greenhouse gas emissions can be a good alternative, but it makes the system more dependent on nuclear power.

Ort, förlag, år, upplaga, sidor
MDPI , 2019. Vol. 12, nr 13, s. 1-13, artikel-id 2484
Nyckelord [en]
life cycle assessment, life cycle costs, electricity production, greenhouse gasses, building renovation, clear waste
Nationell ämneskategori
Energisystem
Identifikatorer
URN: urn:nbn:se:umu:diva-162013DOI: 10.3390/en12132484ISI: 000477034700028OAI: oai:DiVA.org:umu-162013DiVA, id: diva2:1342003
Tillgänglig från: 2019-08-12 Skapad: 2019-08-12 Senast uppdaterad: 2019-08-12Bibliografiskt granskad

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Olofsson, Thomas

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