Impact of remanufacturing on the reduction of metal losses through the life cycles of vehicle engines
Impact of remanufacturing on the reduction of metal losses through the life cycles of vehicle engines
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DOI：
10.1016/j.resconrec.2021.105614
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发表时间：
2021-07
期刊：
影响因子：
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通讯作者：
Zhengyang Zhang;K. Matsubae;K. Nakajima
中科院分区：
文献类型：
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作者：
Zhengyang Zhang;K. Matsubae;K. Nakajima
再制造为产品的每个使用周期提供了全新的使用寿命。由于再制造避免了材料消耗，可以想见，它比材料回收更好。然而，量化再制造的有效性是困难的，因为根本缺乏为这项任务设计的指标和辅助工具。本研究以避免物耗耗量作为衡量产品寿命延长效果的评价指标。再制造的循环路径被纳入称为MaTrace模型的动态物质流动分析模型中，以量化再制造的影响，即在产品生命周期中随着时间的推移避免材料消耗的程度。通过应用扩展MaTRACE模型对汽车发动机50年的实例研究，与废旧产品全部回收的情况进行了比较，结果表明，通过再制造延长产品的使用周期，可以使汽车发动机中钢、镍和铬的总体物理损失分别减少3%、2%和5%。这些结果定量地阐明了在循环资源系统中，发动机再制造相对于材料回收在避免材料消耗方面的优势。
Remanufacturing gives a full new service life for every usage cycle of a product. Since remanufacturing avoids material dissipation, it is conceivably superior to material recycling. However, quantifying the effectiveness of remanufacturing is difficult due to the fundamental lack of indicators and supporting tools designed for the task. In this study, the volume of avoided material dissipation was adopted as an evaluation indicator to measure the effect of product service life extension. The circulation path of remanufacturing was incorporated to a dynamic material flow analysis model called the MaTrace model to quantify the effect of remanufacturing on the extent to which material dissipation was avoided over time through product life cycles. Through a case study of vehicle engines over a period of 50 years by applying the extended MaTrace model, a comparison with a case where used products were all recycled, revealed that extending product service life cycles through remanufacturing reduces the overall physical loss of steel, Ni, and Cr in the vehicle's engine by 3%, 2% and 5%, respectively. These results quantitatively clarify the superiority of engine remanufacturing over material recycling with respect to the effect of avoiding material dissipation in a circular resource system.