Figure 2 from A Closed

Environmentally conscious manufacturing has gained more and more interests in recent years. For achieving it, closed-loop manufacturing system where products are made from used products, parts and materials taken-back from market, as well as new ones, should be established. Focusing on factories, complicated fluctuations of amount, quality, and timing of these taken-back resources make ...

Focusing on factories, complicated fluctuations of amount, quality, and timing of these taken-back resources make effective planning and control of these factories very difficult. In this paper, we have designed a conceptual factory model of a closed-loop manufacturing system considering material flow, with these various kinds of fluctuations.
A Closed

For example, Kondoh et al. [15] defined a closed loop manufacturing system as "the manufacturing system that reutilizes modules, components and materials of post-use products in their production ...
To confirm the dynamic changes in the manufacturing system , we designed a simulation model of a closed-loop manufacturing system and conducted numerical experiments under several scenarios, taking ...

Robust closed
To address this critical issue from a supply chain management perspective, we propose an optimization model for a closed-loop supply chain that integrates CE operations, including reuse , remanufacturing, and recycling processes.
This closed-loop approach can significantly reduce the amount of waste generated during production, minimize the need for virgin materials, and decrease the environmental footprint of the manufacturing process. In this report, we will examine the feasibility of achieving 100% material reuse in a closed-loop manufacturing system .

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For model thatcanhandle these fluctuations, and illustrates achieving it, closed-loop manufacturing system where the miniaturefactorymodel ofaclosed- loop products are made from used products ...
Based on the features of the closed-loop manufacturing system under multi-product and multi-period scenarios, a mixed-integer linear optimization model is developed, where manufacturing and remanufacturing units are coordinated by recycling the production materials from work-in-process and final products.

Production in a circular economy
The Closed Loop Recovery (CLR) Activity Model is an activity in the Production in a CE model that focuses on the end-of-life treatment of products and the flows relevant to developing secondary material streams. The CLR Activity Model outlines the activities and relationships involved in material recovery, including R-strategies such as reuse , repair, remanufacturing, and recycling. Users of ...








This paper developed a closed-loop supply chain network (CLSCN) optimization model with corporate social responsibility (CSR), recycling, remanufacturing, refurbishing, and transaction cost on a supply chain consisting of manufacturers, retailers, a new product demand market, and a retailer-refurbished product demand market. The manufacturers produce substitutable products using raw materials ...