Article
Green & Sustainable Science & Technology
Tetiana Shevchenko, Bernard Yannou, Michael Saidani, Francois Cluzel, Meisam Ranjbari, Zahra Shams Esfandabadi, Yuriy Danko, Yann Leroy
Summary: The study presents a framework for measuring product circularity performance, including the CSFP quadrant model and product circularity profiles, proposes a method for quantifying circular contributions, and validates the model through two case studies.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2022)
Article
Green & Sustainable Science & Technology
Johan Brandstrom, Michael Saidani
Summary: The concept of circular economy aims to reduce the environmental impact of production and consumption by increasing the circularity of resources. However, the relationship between circularity, material efficiency, and environmental sustainability requires more research. This study compares four circularity metrics and three complementary midpoint categories in a lawn mowing case and finds that the studied circularity metrics accurately evaluate material resource scarcity but have lower correlation with other impact categories in scenarios with higher energy use. Material-based circularity metrics can be valuable guidance tools for practitioners of circular economy, but further research is needed to establish state-of-the-art circularity metrics for specific situations and purposes, including energy-focused circularity metrics.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Green & Sustainable Science & Technology
Nouman Khadim, Rosa Agliata, Alfonso Marino, Muhammad Jamaluddin Thaheem, Luigi Mollo
Summary: The implementation of circular economy (CE) in the building industry is fragmented and lacks consensus. This review analyzes existing tools for building circularity indicators and highlights the challenges in developing a universally recognized framework. The findings suggest that most indicators are quantitative, focusing on recycling and reuse and overlooking important aspects like energy, emission, and water. The review provides a synthesis of the developing research theme and emphasizes the need for standardization.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
K. E. K. Vimal, Ming-Lang Tseng, Samanyu Raju, Mahesh Cherukuri, Amith Ashwithi, Jayakrishna Kandasamy
Summary: This study investigates the application of circular economy in product design to address resource scarcity issues, introducing a circular function deployment method with 23 metrics to compute product circularity score and identify improvement opportunities. An empirical study on toothbrush design reveals the critical role of metrics such as upgradability, disassembly and reassembly, longevity, and biological cycle in enhancing product circularity score. The findings suggest practitioners to explore circular economy concepts in product design for market competitiveness.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2022)
Review
Engineering, Environmental
I. Vural Gursel, Berien Elbersen, Koen P. H. Meesters
Summary: The systematic literature review highlights that the development of circular economy indicators at the micro level is still in its early stage, and there is insufficient consideration for biobased systems. Existing indicators cover resource use efficiency and recirculation, but lack inclusion of important characteristics of biobased systems such as renewable resource share, cascading use, and organic recycling. Further research is needed to address gaps related to assessing functional resource use and preserving quality of recycled materials, as well as closing nutrient cycles. Developing indicators to extract the maximum potential of biological resources for circular economy will enable businesses and policy makers to formulate targets for transition to a circular bioeconomy.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Green & Sustainable Science & Technology
Pasqualina Sacco, Christian Vinante, Yuri Borgianni, Guido Orzes
Summary: This paper introduces a new tool named CM-FLAT for assessing the circularity and maturity of companies in the context of circular economy (CE). The tool is developed based on a transparent scientific basis and has been tested and confirmed by experts and a pilot group of companies in South Tyrol, Italy. By providing a comprehensive framework for factors and organizational areas affecting the introduction of CE, the CM-FLAT will benefit companies in adopting circular economy practices.
Article
Green & Sustainable Science & Technology
Robert H. W. Boyer, Agnieszka D. Hunka, Katherine A. Whalen
Summary: Understanding consumer preferences in the circular economy can help producers develop profitable strategies and lower the risks involved in transitioning to circular business models. This study uses a choice experiment to identify customer segments for mobile phones and robot vacuum cleaners at different levels of circularity, finding three customer segments sensitive to a product's Circular Economy Score. The results suggest a market for recirculated consumer electronics and provide a rationale for further research.
Article
Green & Sustainable Science & Technology
Robert H. W. Boyer, Agnieszka D. Hunka, Marcus Linder, Katherine A. Whalen, Shiva Habibi
Summary: The study investigated consumer responses to circular economy product labels and their willingness to pay for products with different levels of circularity, finding that most customers prefer more circular products and are willing to pay more for products with low or moderate levels of circular content. However, willingness to pay decreases as the proportion of recirculated content increases.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2021)
Article
Engineering, Chemical
Shyla Del-Aguila-Arcentales, Aldo Alvarez-Risco, Mauricio Carvache-Franco, Marc A. Rosen, Jaime A. Yanez
Summary: This study applies a bibliometric approach to analyze the literature on circular economy and its relation to improvements in food issues. The results indicate that Italy is the most productive country in this field, with Wageningen University & Research being the most productive organization.
Article
Green & Sustainable Science & Technology
Farhan Ashraf, Arijit Lodh, Emanuele Pagone, Gustavo M. Castelluccio
Summary: Improving materials' productivity and reusability can promote circularity by reducing extraction and enabling fully recyclable parts and systems. However, the current focus on reusing, repairing, or recycling materials often overlooks the potential for proactive revitalization of materials. This study explores the possibilities of preventive maintenance in revitalizing metallic materials and identifies techniques that can effectively extend the structural lifespan of metallic components. By analyzing the literature and considering the eco-footprint and feasibility in the aerospace sector, this study ranks approaches based on their circularity impact and provides valuable insights for future research in materials maintenance.
Article
Environmental Sciences
Philipp Draeger, Peter Letmathe, Linda Reinhart, Florian Robineck
Summary: This article adapts Ellen MacArthur Foundation's material circularity indicator to analyze the circularity of construction products in Germany. The results show poor implementation of circular strategies in the German construction industry, indicating a need for better implementation.
ENVIRONMENTAL SCIENCES EUROPE
(2022)
Article
Green & Sustainable Science & Technology
Elena Rangoni Gargano, Alessia Cornella, Pasqualina Sacco
Summary: This study proposes an innovative governance model aimed at providing a practical tool for local governments and policy makers to promote the implementation of the circular economy through a flexible governance approach. The model categorizes indicators and creates a "Territory Circularity Index" based on a comparative assessment of enablers and barriers from the literature review. The evaluation of results suggests that the flexible governance model has potential in promoting effective mechanisms for implementing the circular economy. This research is particularly important for researchers, policy makers, entrepreneurs, and governments.
Article
Environmental Sciences
Pouya Samani
Summary: This article evaluates the synergies between circularity assessment and Life Cycle Assessment (LCA) and emphasizes the importance of a multi-level approach. The findings demonstrate that both LCA and circularity assessment can serve as sustainability assessment methods, but neither can provide a complete picture on its own. Challenges include data availability, diverse assumptions, spotlights and shadows, multiple life cycles, and temporal aspects.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Green & Sustainable Science & Technology
Ibrahim Yahaya Wuni, Geoffrey Qiping Shen
Summary: This paper investigates the critical success factors for implementing circular modular construction projects in Hong Kong, revealing twenty-one significant success factors and identifying early design completion and freezing, early understanding and commitment of the client, effective leadership and support of a specialist contractor, adequate knowledge and experience of the project team, and collaborative working and information sharing among project teams as the top five significant success factors. These findings underscore the importance of planning and design stages for successfully implementing circular modular construction projects.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2022)
Article
Agronomy
Steliana Rodino, Ruxandra Pop, Cristina Sterie, Andreea Giuca, Eduard Dumitru
Summary: This article explores how circularity can be measured and evaluated in the agricultural sector. It identifies relevant indicators and tools for assessing circularity in the agri-food chain and analyzes methodologies for measuring the restorative capacity and effectiveness of the agricultural system. The study provides valuable insights for implementing the circular economy in agriculture.
Article
Green & Sustainable Science & Technology
Robert H. W. Boyer, Agnieszka D. Hunka, Marcus Linder, Katherine A. Whalen, Shiva Habibi
Summary: The study investigated consumer responses to circular economy product labels and their willingness to pay for products with different levels of circularity, finding that most customers prefer more circular products and are willing to pay more for products with low or moderate levels of circular content. However, willingness to pay decreases as the proportion of recirculated content increases.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2021)
Article
Green & Sustainable Science & Technology
Robert H. W. Boyer, Ann-Charlotte Mellquist, Mats Williander, Sara Fallahi, Thomas Nystrom, Marcus Linder, Peter Alguren, Emanuela Vanacore, Agnieszka D. Hunka, Emma Rex, Katherine A. Whalen
Summary: Product circularity can be understood as a three-dimensional concept, encompassing high material recirculation, high utilization, and high endurance. These dimensions should be measured and reported separately, rather than as a composite metric, and different applications may have opportunities to improve circularity through certain dimensions better than others.
JOURNAL OF INDUSTRIAL ECOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Thomas Nystrom, Katherine A. Whalen, Derek Diener, Marcel den Hollander, Robert H. W. Boyer
Summary: This conceptual paper highlights the importance of product adaptivity in circular business models and proposes the Future Adaptive Design framework to help manage product-related business risks. It identifies a research gap in the field of circular economy and design, especially in the early stages of business development.
Article
Green & Sustainable Science & Technology
Robert H. W. Boyer, Agnieszka D. Hunka, Katherine A. Whalen
Summary: Understanding consumer preferences in the circular economy can help producers develop profitable strategies and lower the risks involved in transitioning to circular business models. This study uses a choice experiment to identify customer segments for mobile phones and robot vacuum cleaners at different levels of circularity, finding three customer segments sensitive to a product's Circular Economy Score. The results suggest a market for recirculated consumer electronics and provide a rationale for further research.
Editorial Material
Environmental Sciences
Agnieszka D. Hunka
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT
(2021)
Article
Engineering, Environmental
Ann-Charlotte Mellquist, Robert Boyer, Mats Williander
Summary: This paper proposes a simple arithmetic metric called the Market Endurance (ME) metric to objectively assess products' ability to retain their value over time. The metric rewards long life spans, repairability, upgradeability, adaptability, and business models that encourage longer product retention and higher value for customers. It can be used for cross-product and cross-sector comparisons, making it a catalyst for circular innovation and transition.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Public Administration
Suzanne M. Leland, Christina Danis, Sarahanne Smith, Robert H. W. Boyer
PUBLIC WORKS MANAGEMENT & POLICY
(2022)
Article
Business
Agnieszka D. Hunka, Marcus Linder, Shiva Habibi
Summary: Consumers prefer partly circular products; circular products can likely successfully enter the market at the retail price of a new product; circular products primarily compete with new products, leaving the market share of second-hand options less affected.
BUSINESS STRATEGY AND THE ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)
