scholarly journals Interconnections: An Analysis of Disassemblable Building Connection Systems towards a Circular Economy

Buildings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 535
Author(s):  
Timothy M. O’Grady ◽  
Roberto Minunno ◽  
Heap-Yih Chong ◽  
Greg M. Morrison
Keyword(s):  
Circular Economy ◽  
Building Industry ◽  
Waste Production ◽  
Living Lab ◽  
Design Challenge ◽  
Modular Buildings

This study investigates the interconnection methods used to create a circular economy building featuring modularity and designed for disassembly and relocation. Designing modular buildings for disassembly and reuse can decrease waste production and material depletion, in line with the circular economy framework. Disassemblable buildings require connections to be easily accessible. Visible connections may be unpopular features; however, concealing these, yet leaving these accessible, presents a substantial design challenge. This study demonstrates solutions to this challenge by analyzing a purposely designed case study: the Legacy Living Lab. The challenges of disguising and sealing, such as by waterproofing, two types of connections are analysed: structural and non-structural. This study details the materials and connections used across the two analyzed connection types and compares the weights and reusability of components. Thus, a necessary case study is provided for practitioners to advance circular economy theory in the building industry. Notably, all connections in the Legacy Living Lab can be easily accessed with standard building tools, facilitating its disassembly and fostering component reusability.

scholarly journals The Key Strategies to Implement Circular Economy in Building Projects—A Case Study of Taiwan

2021 ◽  
Vol 13 (2) ◽  
pp. 754
Author(s):  
H.-Ping Tserng ◽  
Cheng-Mo Chou ◽  
Yun-Tsui Chang
Keyword(s):  
Case Studies ◽  
Circular Economy ◽  
Building Industry ◽  
Structured Interviews ◽  
Pilot Projects ◽  
Building Projects ◽  
The World ◽  
Project Phases ◽  
Future Project

The building industry is blamed for consuming enormous natural resources and creating massive solid waste worldwide. In response to this, the concept of circular economy (CE) has gained much attention in the sector in recent years. Many pilot building projects that implemented CE concepts started to appear around the world, including Taiwan. However, compared with the pilot projects in the Netherlands, which are regarded as the pioneer ones by international society, many CE-related practices are not implemented in pilot cases in Taiwan. To assist future project stakeholders to recognize what the key CE-related practices are and how they could be implemented in their building projects in Taiwan, this study has conducted a series of case studies of Dutch and Taiwanese pilot projects and semi-structured interviews with key project stakeholders of Taiwanese pilot projects. Thirty key CE-related practices are identified via case studies, along with their related 5R principles (Rethink, Reduce, Reuse, Repair, Recycle) and project phases. Suggestion on CE-related practices, their 5R principles, project items, and phases to implement in building projects in Taiwan is also proposed while discussion on differences between two countries’ pilot projects is presented.

scholarly journals Elävät kaupunkilaboratoriot: kulttuuritoimijat Tampereen Hiedanrannan uudistajina

2021 ◽  
Vol 40 (1) ◽  
pp. 53-68
Author(s):  
Veera Turku ◽  
Ari Jokinen ◽  
Pekka Jokinen
Keyword(s):  
Thematic Analysis ◽  
Circular Economy ◽  
Local Level ◽  
Cultural Sustainability ◽  
Transformative Potential ◽  
Living Lab ◽  
Cultural Sector ◽  
Innovation Processes

This paper examines the role of cultural actors in promoting sustainability in an urban living lab (ULL). The case study utilizes thematic analysis on the interviews of cultural actors working in the multi-sectoral, circular-economy oriented Hiedanranta ULL in Tampere. The results of the study show, first, that the cultural sector is not detached from the innovative business and experimentation sector of the ULL. On the contrary, cultural actors advance creative ambience and co-develop experimentations, making them an essential part of the ULL innovation processes. Second, cultural actors promote social and cultural sustainability at the local level, which often stays hidden in the processes of upscaling innovations. Third, the sustainable and transformative potential of cultural actors, within and beyond the ULL is mostly horizontal. The results suggest that the cultural sector, comprising civil society actors, can have a multidimensional effect on ULL development.  

scholarly journals The Responsibility of Waste Production: comparison of European Waste Statistics Regulation and Dutch National Waste Registry

2021 ◽  
Author(s):  
Rusne Sileryte ◽  
Alexander Wandl ◽  
Arjan van Timmeren
Keyword(s):  
Circular Economy ◽  
Action Plan ◽  
Computational Method ◽  
Economic Activities ◽  
Extensive Discussion ◽  
Policy Makers ◽  
Waste Production ◽  
Negative Impacts ◽  
The Relationship

The announcement of a new Circular Economy Action Plan as part of the European Green Deal policy has created an urgent need for the reliable information on resource flows to monitor and support the transition. An updated Monitoring Framework is set to rely as much as possible on European Statistics, however at this point there are no changes introduced in supranational statistics regulations. This raises a question whether regulations that have been created before the paradigm shift are still able to supply us with statistics necessary to inform policy makers about current successful practices, remaining barriers, positive and negative impacts of the transition and overall progress towards the set goals. This paper focuses on the Waste Statistics Regulation, specifically the relationship between the types of waste and economic activities which are considered to be the waste producers. Dutch National Waste Registry is used as a case study to compare the guidelines on pan-European waste data collection to the actual waste reports. The task of this publication is dual: first, it presents a computational method to link waste producers to their economic activities using a national Trade Registry. Secondly, it explores to which extent the guidelines available in the Waste Statistics Regulation correspond to the operational reality. An extensive discussion of the results provides insights and recommendations for the future guidelines of waste statistics to support circular economy transition.

scholarly journals Barriers and opportunities for the transition to a circular economy. A case study of Chilean cooperatives

2020 ◽  
Vol 12 (1) ◽  
pp. 63-81
Author(s):  
Jorge Cea-Valencia ◽  
Adriana Villegas-Huencho ◽  
Rodrigo Sion-Sierra
Keyword(s):  
Circular Economy ◽  
Qualitative Methodology ◽  
Resource Limitation ◽  
Production Model ◽  
Social Discourse ◽  
New Paradigm ◽  
Waste Production ◽  
Barriers And Opportunities ◽  
Definition Of

The linear use–consumption–waste production model does not make allowances for resource limitation or loss, or the associated pollution. The concept of the circular economy (CE) emerged as an alternative to this model. In recent times, the CE has awoken considerable interest and discussion among academics, enterprises, and governments given its connection with sustainable development and its potential impact on the economic, social, and environmental levels. At present there is no precise and established definition of the CE as a concept, and though this new paradigm could proffer a host of benefits for the organizations who integrate it into their business model, it might also bring about difficulties or challenges. The main aim of this study is to identify barriers and opportunities for the transition to the CE based on a case study of cooperatives in Chile. The study employs the qualitative methodology of social discourse analysis, complemented by a literature review and interviews with CE experts. Five categories were constructed to guide the interviews and subsequent analysis: (i) knowledge, (ii) technological, (iii) structural, (iv) operational, and (v) financial. A total of ten interviews were conducted across the three specific cases selected. The data analysis was conducted using Atlas TI8 software. The results obtained for each case study point to gaps and opportunities in the five categories, and, more generally, in the legal and cultural spheres.

scholarly journals Circular Economy and Virtual Reality in Advanced BIM-Based Prefabricated Construction

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4065
Author(s):  
Timothy M. O’Grady ◽  
Nicholas Brajkovich ◽  
Roberto Minunno ◽  
Heap-Yih Chong ◽  
Gregory M. Morrison
Keyword(s):  
Virtual Reality ◽  
Construction Industry ◽  
Circular Economy ◽  
Game Design ◽  
Real Life ◽  
Case Study Methodology ◽  
Novel Approach ◽  
Living Lab ◽  
Building Information

This paper presents a new virtual reality (VR)-based approach to advanced learnings and experiences of the circular economy (CE) in the construction industry. The approach involves incorporating game design and a building information modelling (BIM) digital twin of a purposed CE prototype building. Our novel approach introduces VR environments designed to provide a visual representation of materials and components that can be reintroduced into the supply chain at the end of life and their removal procedures and material provenance. A case study methodology was applied to a purposely designed CE building, namely the Legacy Living Lab (L3). To reflect the real-life building, L3’s BIM model was combined with Unify game software to advance the literature in three key areas. First, the research investigates VR tools that will allow building designers to view and implement their strategies to advance CE design. Second, this research proposes an advanced VR tool to visualise the bill of quantities (BoQ) and material stock embedded in the studied building, further understanding concepts such as buildings as material banks. Finally, the proposed VR environment defines CE techniques implemented within the case study to be disseminated across the vast construction industry. This VR research identifies three key pillars in reducing the waste generated by the construction industry: education, documentation and visualisation. Furthermore, this paper provides a visual link between the BIM, BoQ and resiliency of the selected materials.

Development trends of circular economy: Case study of Ukraine

2017 ◽  
pp. 51-66
Author(s):  
Tamara Merkulova ◽  
Kateryna Kononova ◽  
Olena Titomir
Keyword(s):  
Circular Economy ◽  
Development Trends

Transitioning Business for a Circular Economy

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Susan EVANS
Keyword(s):  
Professional Practice ◽  
Circular Economy ◽  
Radical Change ◽  
Virtual Space ◽  
Professional Experience ◽  
Operational Model ◽  
New Vision ◽  
To Come ◽  
Space Requirements

This case study explores the strategic business opportunities, for Lane Crawford, an iconic luxury department store, to transition in a circular economy towards sustainability. A new experimentation framework was developed and conducted among cross departmental employees, during a Design Lab, with intention to co-create novel Circular Economy business concepts towards a new vision: the later was a reframe of the old system based on the principles of sustainability; to move beyond a linear operational model towards a circular economy that can contribute to a regenerative society. This work draws on both academic and professional experience and was conducted through professional practice. It was found that innovative co-created concepts, output from the Design Lab, can create radical change in a circular economy that is holistically beneficial and financially viable; looking forward to extract greater value a)Internal organization requires remodeling to transform towards a circular economy; b)Requirement for more horizonal teams across departments vs solely vertical; c)New language and relationships are required to be able to transition towards a circular economy; d)Some form of physical and virtual space requirements, for cross-disciplinary teams to come together to co-create; e)Ability to iterate, learn and evolve requires agency across the business

scholarly journals Living lab on sharing and circular economy: The case of Turin

2021 ◽  
Vol 27 (1) ◽  
pp. 146045822098727
Author(s):  
Federico Cuomo ◽  
Nadia Lambiase ◽  
Antonio Castagna
Keyword(s):  
Circular Economy ◽  
Common Ground ◽  
Swot Analysis ◽  
Research Question ◽  
Environmental Benefits ◽  
Production Cycle ◽  
Living Lab ◽  
Starting Point ◽  
Living Labs ◽  
Past Experiences

Cities with their innovative capacity are key places to address critical climate, environmental and health challenges. Urban experimentations, such as Living Labs, can represent a starting point to reintroduce resources into the production cycle and reduce environmental impacts, embracing the paradigm of the circular economy (CE). According to recent studies, Living Labs at a city scale could generate significant environmental benefits, improvements in quality of life and positive impacts on citizens’ health.1 This paper aims at presenting the case of the Torino Living Lab on Sharing and Circular Economy (LLSC) to point out possible future scenarios of urban sustainable policies. The case study is analysed in five sections: (1) the description of the new permanent laboratory proposed by the City of Turin; (2) the past experiences of Living Labs in Turin; (3) the birth of LLSC and the involvement strategy; (4) the introduction of the eight admitted experimentations. In the light of the results collected, the last paragraph (5) came up with the Strengths, Weaknesses, Opportunities, Treaths (SWOT) analysis in the LLSC. Eventually, it deals with the research question by offering a common ground for global and local policies focused on sustainability and CE.

scholarly journals Extending Multilevel Statistical Entropy Analysis towards Plastic Recyclability Prediction

2021 ◽  
Vol 13 (6) ◽  
pp. 3553
Author(s):  
Philippe Nimmegeers ◽  
Alexej Parchomenko ◽  
Paul De Meulenaere ◽  
Dagmar R. D’hooge ◽  
Paul H. M. Van Steenberge ◽  
...  
Keyword(s):  
Circular Economy ◽  
Real Life ◽  
Plastic Waste ◽  
Entropy Analysis ◽  
Waste Collection ◽  
Statistical Entropy ◽  
Waste Streams ◽  
Material Component ◽  
Future Work

Multilevel statistical entropy analysis (SEA) is a method that has been recently proposed to evaluate circular economy strategies on the material, component and product levels to identify critical stages of resource and functionality losses. However, the comparison of technological alternatives may be difficult, and equal entropies do not necessarily correspond with equal recyclability. A coupling with energy consumption aspects is strongly recommended but largely lacking. The aim of this paper is to improve the multilevel SEA method to reliably assess the recyclability of plastics. Therefore, the multilevel SEA method is first applied to a conceptual case study of a fictitious bag filled with plastics, and the possibilities and limitations of the method are highlighted. Subsequently, it is proposed to extend the method with the computation of the relative decomposition energies of components and products. Finally, two recyclability metrics are proposed. A plastic waste collection bag filled with plastic bottles is used as a case study to illustrate the potential of the developed extended multilevel SEA method. The proposed extension allows us to estimate the recyclability of plastics. In future work, this method will be refined and other potential extensions will be studied together with applications to real-life plastic products and plastic waste streams.

scholarly journals Moving from Niche to Norm: Lessons from Food Waste Initiatives

2021 ◽  
Vol 13 (14) ◽  
pp. 7667
Author(s):  
Lusine H. Aramyan ◽  
Gonne Beekman ◽  
Joris Galama ◽  
Sandra van der Haar ◽  
Maarten Visscher ◽  
...  
Keyword(s):  
Food Waste ◽  
Circular Economy ◽  
Food Systems ◽  
Food System ◽  
Behavioural Change ◽  
Policy Instruments ◽  
Transition Process ◽  
Personal Factors ◽  
Success Traits

For a transition to a circular economy to take place, behavioural change from people who are part of the transition is a key requirement. However, this change often does not occur by itself. For systemic behavioural change, policy instruments that incentivise behaviour supporting circular food systems play a key role. These instruments need to be aligned with the environment in which the behaviour takes place. In this study, we scrutinise a case study with five initiatives on the reduction of food loss and waste (FLW) contributing to a circular food system, to understand how specific, well-targeted combinations of instruments as well as other contextual and personal factors can fuel the transition to a circular economy and the reduction of FLW. All the initiatives are taking place under the umbrella of the Dutch initiative “United against food waste” (STV). We use a behavioural change perspective to assess how initiatives that support circular food systems arise and how they can be further supported. Based on the case-study analysis, we arrive at five common success traits and barriers, and five key needs for upscaling. We conclude that motivated, inspiring frontrunners are of key importance in the initial phase of a transition process. However, once a niche initiative is ready to be scaled up, the enabling environment becomes increasingly important.

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