A Study on Optimum Circulation Period of Products for Minimizing Lifecycle Energy Consumption

Yuji Mizuno; Naoya Kintoki; Yusuke Kishita; Shinichi Fukushige; Yasushi Umeda

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A Study on Optimum Circulation Period of Products for Minimizing Lifecycle Energy Consumption

机译：降低产品生命周期能耗的最佳产品流通周期研究

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Combination of long product lifetime and recycling is effective for reducing material use. However, in the case of products that uses energy in their use phase, early replacement of old products with new energy efficient products may contribute to reduction of lifecycle CO 2 emission. In the previous studies, we proposed a formula to calculate optimum circulation period (OCP) of the products based on the improvement of energy efficiency. The formula was applied to the products produced in 1991-2000. This paper calculates the OCP of the latest products and analyzes the effect of rapid circulation of products. As a result, OCP and RCP effects are different from the previous studies, because characteristics of latest products are different from products of 1991-2000. Especially, OCP of Hybrid Electric Vehicles excesses three times than the normal product life span. Special case of rapid circulation between different type products, such as Gasoline Vehicles and Hybrid Electric Vehicles was effective for CO 2 emission reduction.

机译：产品使用寿命长和回收再利用相结合，可有效减少材料用量。但是，对于在使用阶段使用能源的产品，早期用新的节能产品替换旧产品可能有助于减少生命周期中的CO 2排放。在以前的研究中，我们提出了一个公式，可以根据能效的提高来计算产品的最佳循环周期（OCP）。该公式适用于1991-2000年生产的产品。本文计算了最新产品的OCP，并分析了产品快速流通的效果。结果，OCP和RCP的作用与以前的研究不同，因为最新产品的特性与1991-2000年的产品不同。特别是，混合动力汽车的OCP超过正常产品寿命的三倍。汽油车和混合动力车等不同类型产品之间快速循环的特殊情况对于减少CO 2排放是有效的。

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《Procedia CIRP》 |2015年第5期|共6页
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Yuji Mizuno; Naoya Kintoki; Yusuke Kishita; Shinichi Fukushige; Yasushi Umeda;
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A Study on Optimum Circulation Period of Products for Minimizing Lifecycle Energy Consumption

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