Development of multi-value circulation based on remanufacturing

Nakajima, Kenichi; Matsumoto, Mitsutaka; Murakami, Hideyuki; Hayakawa, Masao; Matsuno, Yasunari; Takayanagi, Wataru

doi:10.1051/mattech/2018057

Cited by 5 publications

(6 citation statements)

References 16 publications

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“…However, if we replace 40% out of 100% material recycling to parts reuse, greater possibilities would be achieved with respect to the service life extension of products when compared with 100% recycling. In fact, remanufacturing, refurbishment, repair, and direct reuse (RRRDR) practices to expand the product's service life would play key roles in the transition towards a circular economy [25]. The global remanufacturing industry has generated substantial economic value, amounting to a production value of 43 billion USD in the United States [26] and a European market value of 34 billion USD [27].…”

Section: Discussionmentioning

confidence: 99%

An estimation of the amount of dissipated alloy elements in special steel from automobile recycling

Zhang

Takeyama

Ohno

et al. 2019

Matériaux & Techniques

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According to the concept of a circular economy, further promotion of reuse and recycling might aid in closing the loop. However, material recycling may cause various types of material losses due to thermodynamic limitations and product complexity. In this study, we focused on automobile engines and their reuse, with the aim of quantifying the amount of dissipated steel alloy and its constituent elements (nickel and chromium) from the engine recycling process. We also elaborated upon their dissipation paths by using the MaTrace model [S. Nakamura, et al., MaTrace: Tracing the fate of materials over time and across products in open-loop recycling, Environ. Sci. Technol. 48, 7207 (2014)]. We evaluated the impact mitigation of material dissipation and the effects of reuse on the extension of product service life. We found that 22% of steel, 21% of nickel, and 63% of chromium was dissipated in total after 50 years; typically, nickel dissipates during the recovery process while chromium does so during the refinery process. Although the impacts on the reduction of material losses remained nearly the same after replacing 40 of 100% material recycling to parts reuse, greater possibilities could be achieved with respect to the service life extension of products when compared with 100% recycling.

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Section: Discussionmentioning

confidence: 99%

An estimation of the amount of dissipated alloy elements in special steel from automobile recycling

Zhang

Takeyama

Ohno

et al. 2019

Matériaux & Techniques

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“…We demonstrate the model using case studies of ten products, representing two different industries (vehicle parts and industrial digital printers), and two different economies (U.S. and China) (Results section). From the model and analysis, we extend the framework introduced by Gutowski et al [24] to consider additional factors relevant to VRPs in a CE, including the residual value of component parts [29,30,44,46], and the material composition of the product, which can affect cumulative life cycle energy requirements across multiple product service lives [5,36]. Alongside other proposed frameworks designed to support decision-making within CE transitions, such as the Circular Economy Product and Business Model Strategy Framework [7], the Framework for Evaluating Design for Reuse Options [12], and the Sustainable Consumption Business Model Framework [56], we present this novel methodology and the resulting framework (Extended Framework to Assess the Appropriateness of Undertaking VRPs) in response to the rising interest in, and adoption of CE practices (Discussion section).…”

Section: The Potential and Challenge Of Value-retention Processes (Vrps)mentioning

confidence: 99%

Value-retained vs. impacts avoided: the differentiated contributions of remanufacturing, refurbishment, repair, and reuse within a circular economy

Russell

Nasr

2022

Jnl Remanufactur

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Value-retention processes (VRPs), a collective term that includes practices of direct reuse, repair, refurbishment, and remanufacturing, can facilitate the cycling of products and components within a circular economy (CE). VRPs are often presented as alternatives to conventional manufacturing and consumption, and as mechanisms for avoiding negative environmental impacts (e.g., landfill) and mitigating issues of material scarcity. However, these practices are typically lumped together under generic ‘reuse’ strategies within sustainable materials management programs and policies. Further, there is a lack of clarity and data regarding how VRPs differ, and the extent to which they contribute to the avoidance of negative environmental and economic impacts. Using novel integrated product-, process, and economy-level models, we quantify select environmental and economic impact metrics for VRPs and conventional manufacturing across six case study products, in two industrialized economies (USA and China). Using this novel methodology, we demonstrate a basis for clear differentiation of VRPs as distinct strategies within a CE, and show that each VRP offers differing forms of value (e.g. cost reduction, labor opportunity, and material retention) and differing degrees of environmental and economic impacts (e.g., primary material requirement, embodied emissions, process emissions). In all cases, the product- and process-level comparative analyses indicate that VRPs present a clear opportunity for significantly reduced environmental impacts, relative to conventional manufacturing. This novel methodology provides an adaptive, comprehensive model that can support the decision of whether or not to engage in VRPs. By quantifying and evaluating VRPs in terms of their relative environmental and economic performance, the distinct avenues, expectations and outcomes for CE can be better integrated across diverse industry and product portfolios (International Resource Panel [29]).

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“…Remanufacturing (Ponte et al, 2019); (Sitcharangsie et al, 2019); (Hasegawa et al, 2019); (Charnley, F., Tiwari, D., Hutabarat, W., Moreno, M., Okorie, O., Tiwari, 2019); (Nakajima et al, 2019); (Liu et al, 2018); (Bradley et al, 2018); ; (S. ; (Low and Ng, 2018); (Xiao et al, 2018); (Atlason et al, 2017); (Zhou et al, 2017); (Jensen and Remmen, 2017); (Tolio et al, 2017a); (Shahbazi et al, 2016); (Tsiliyannis, 2016); (Zhang et al, 2011); (Nakajima et al, 2019); (Liao, 2018); (Xu, 2016) 16 3 2 19 11 7 5 6 8…”

Section: Decision Supportmentioning

confidence: 99%

“…On one side, regarding the integration among different CM strategies at the same scale of adoption, for instance, at micro level, material efficiency supports the transition towards CE by improving recyclability, reusability, reduction and prevention of industrial waste (Shahbazi et al, 2016). Reuse and remanufacturing practices, being them mutually exclusive choices, are often addressed together by researchers (Liu et al, 2018) as well as the 3Rs (Nakajima et al, 2019). Moreover, disassembly decisions at the beginning of product life cycle (Talens Peiró et al, 2017) ease circular end-of-life management (Mandolini et al, 2018;Marconi et al, 2019), especially the 3Rs adoption (Hasegawa et al, 2019).…”

Section: Analysis: Stepmentioning

confidence: 99%

“…Among them, O' Connor et al, (2016) studied technologies to digeste and separate waste, while O' Connor et al, 2016;Puyol et al, (2017) technologies to recover resources through wastewater treatments. Specifically, for the discrete manufacturing sector, a prominent role is given to technologies to remanufacture products (Nakajima et al, 2019) and to design products for remanufacturing (Tolio et al, 2017a).…”

Section: Technologiesmentioning

confidence: 99%

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