Open AccessCircularity concepts for offsite prefabricated energy renovation of apartment buildings
Author(s) -
Kalle Kuusk,
Kristel Kullerkupp,
Peep Pihelo,
Michiel Ritzen,
Ana Tisov,
Targo Kalamees
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2069/1/012074
Subject(s) - building envelope , architectural engineering , facade , component (thermodynamics) , envelope (radar) , energy consumption , material selection , energy (signal processing) , building science , computer science , renewable energy , mechanical engineering , engineering , civil engineering , materials science , thermal , mathematics , telecommunications , radar , statistics , physics , meteorology , thermodynamics , electrical engineering , composite material
Deep energy renovation includes the realisation of the full potential of energy performance. A circular deep renovation, which contributes to a circular built environment, is based on 100% life cycle renewable energy, and all materials used within the system boundaries are part of infinite technical or biological cycles with the lowest quality loss as possible. In the current study, the circularity potential was assessed for deep energy renovation from different aspects: circularity of materials, building component and building structure. Careful selection of materials as well as connection, position and disassembly possibilities are needed to increase the degree of circularity. This shows a good possibility to increase energy performance by using circularity principles. The window glass circularity analyse showed that, at best, the thermal transmittance of a new circular product can be more than three times lower than the original. The circular use of materials, components, and structures pose new challenges for the building physic design of building envelope structures.