Energy savings and overheating risk of deep energy renovation of a multi-storey residential building in a cold climate under climate change
2020 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 202, p. 1-11, article id 117578Article in journal (Refereed) Published
Abstract [en]
Here, we analyse final and primary energy savings and overheating risk of deep energy renovation of a Swedish multi-storey residential building of the 1970s under climate change and consider overheating control measures to reduce cooling demand and risk of overheating. The energy-efficiency measures include additional insulation to basement walls, exterior walls, and attic floor as well as improved energy-efficient windows and doors, balanced ventilation with heat recovery (VHR), lighting, household appliances as well as water taps and shower heads. The future climates are based on the representative concentration pathways scenarios. We find that implementing improved energy-efficient windows and doors, VHR and additional insulation to external walls give significant final and primary energy savings for space heating. The total operation final and primary energy use decrease averagely by 58% and 54%, respectively when all the measures are cumulatively applied under both current and future climate scenarios. Efficient household appliances and lighting as well as appropriate overheating control measures significantly reduce cooling demand and risk of overheating. The indoor air temperature and overheating risk as well as the final energy savings are influenced by the considered climate scenarios. (C) 2020 Elsevier Ltd. All rights reserved.
Place, publisher, year, edition, pages
Elsevier, 2020. Vol. 202, p. 1-11, article id 117578
Keywords [en]
Residential building, Energy-efficiency measures, Climate change, Overheating, Final and primary energy saving
National Category
Civil Engineering
Research subject
Technology (byts ev till Engineering), Bioenergy Technology; Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-97148DOI: 10.1016/j.energy.2020.117578ISI: 000538592700008Scopus ID: 2-s2.0-85084454208OAI: oai:DiVA.org:lnu-97148DiVA, id: diva2:1454086
Conference
14th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES), OCT 01-06, 2019, Dubrovnik, CROATIA
2020-07-142020-07-142025-05-07Bibliographically approved