Content from this work may be used under the terms of theCreative Commons Attribution 3.0 licence. Any further distributionof this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.Published under licence by IOP Publishing LtdBEYOND 2020 – World Sustainable Built Environment conferenceIOP Conf. Series: Earth and Environmental Science588 (2020) 042045IOP Publishingdoi:10.1088/1755-1315/588/4/0420451Design guidelines for circular building components based on LCA and MFA: The case of the Circular KitchenA van Stijn1,2, LCM Eberhardt3, B Wouterszoon Jansen1,2and AMeijer11. Department of Management in the Built Environment, Faculty of Architecture and the Built Environment, Delft University of Technology, Delft, The Netherlands.2. Amsterdam Institute for Advanced Metropolitan Solutions (AMS), Amsterdam, The Netherlands.3. Department of Energy Efficiency, IndoorClimate and Sustainability, Danish Building Research Institute, Aalborg University, Copenhagen, Denmark.firstname.lastname@example.orgIntroduction.The building sectorconsumes 40% of resources globally, produces 40% of global waste and 33% of allemissions. The transition towards a Circular Economy (CE) in the built environment is vital to achieveSustainable Development Goals (SDGs) such as responsible consumption and production. The built environment can gradually be made circular by replacing the current ‘linear’building components with circularonesduring maintenance and renovation. However, there are many possible design alternatives for circular building components;knowledgeon which variants perform best –from an environmental perspective –is lacking.Methods.In this article, we develop environmental design guidelines for circular building components. First, we synthesize design variants for an exemplary circular building component: the Circular Kitchen (CIK). Second, we comparethe environmental performance of these variants and a ‘business-as-usual’variantbyapplying a Material Flow Analysis (MFA) and Life Cycle Assessment (LCA). Finally, from the results,we derive design guidelines.Results.We synthesizedfourdesign variants: (1) a kitchen made from bio-based, biodegradable materials, (2) a kitchen made from re-used materials, (3) a kitchen which optimises lifespansand materials, and (4) a modular kitchen in which components (with varyinglifespans) are re-used by the manufacturer. From the LCA and MFA, we derived7design guidelines, which include:consider building components as a composite of sub-components, parts and materials with different and multiple use-, and life-cycles; match the materialisation ofeach partwith the expected life cycle(merely substituting for re-usedor low-impact materialsdoes not provide the most circular design); facilitatevarious loops(e.g., repair, re-use, recycling)simultaneously. Conclusions.The presented design guidelines cansupport industry in developing circular building components and, through implementation of these components, support the creation of a circular built environment.
|Konference||World Sustainable Built Environment - Beyond 2020, WSBE 2020|
|Periode||02/11/2020 → 04/11/2020|
|Sponsor||Autodesk Construction Cloud, Bona, Construction Industry Council, et al., HKGBC, Skanska|
|Navn||IOP Conference Series: Earth and Environmental Science|