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Optimizing Product Life Cycle Systems for Manufacturing in a Circular Economy



Buddhika Hapuwatte, Nehika Mathur, Noah Last, Vincenzo Ferrero, Maya Reslan, KC Morris


Global population growth and increasing resource scarcity are necessitating sustainable manufacturing and circular economy (CE) practices. These practices require the decisions made at each product life cycle (PLC) stage consider sustainability and circularity implications. We propose PLC system level optimization to identify the most favorable choices, instead of siloed individual PLC stage-specific optimizations. This should yield better circularity by permitting manufacturers to take a more holistic view and identify the areas of highest impact across the PLC. This paper presents initial work towards building a PLC system optimization framework. From an initial review of current circularity metrics, we identify metrics that are suitable for forming the optimization objectives. Second, we identify decision variables available to manufacturers across the PLC that are useful in optimizing the entire system's circularity and sustainability. Finally, we identify limitations of current metrics, and discuss major challenges and potential solutions to PLC system optimization problems.
Proceedings Title
Lecture Notes in Mechanical Engineering: Proceedings of GCSM 2022
Conference Dates
October 5-7, 2022
Conference Location
Berlin, DE
Conference Title
18th Global Conference on Sustainable Manufacturing


Circular economy, Sustainable manufacturing, Optimization, Metrics, Product life cycle


Hapuwatte, B. , Mathur, N. , Last, N. , Ferrero, V. , Reslan, M. and Morris, K. (2023), Optimizing Product Life Cycle Systems for Manufacturing in a Circular Economy, Lecture Notes in Mechanical Engineering: Proceedings of GCSM 2022, Berlin, DE, [online],, (Accessed June 20, 2024)


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Created April 26, 2023, Updated December 13, 2023