Life‐Cycle Assessment and Temporal Distributions of Emissions: Developing a Fleet‐Based Analysis
Life‐Cycle Assessment and Temporal Distributions of Emissions: Developing a Fleet‐Based Analysis
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生命周期评估和排放的时间分布：开发基于车队的分析
DOI：
10.1162/108819800569816
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发表时间：
2000
影响因子：
5.9
通讯作者：
J. Clark
中科院分区：
文献类型：
--
作者：
F. Field;R. Kirchain;J. Clark
尽管以产品为中心的生命周期评估一直是其优势之一，但这种分析视角所包含的假设可能与环境问题的现实相冲突。本文通过一系列数学推导证明，所有使用中的产品（而不是单个产品）通常应该成为适当的分析单位。这种“以车队为中心”的方法为替代产品产生的相对排放负担提供了更丰富的视角，并且消除了以产品为中心的方法强加于分析的某些简化假设。
Although the product‐centered focus of life‐cycle assessment has been one of its strengths, this analytical perspective embeds assumptions that may conflict with the realities of environmental problems. This article demonstrates, through a series of mathematical derivations, that all the products in use, rather than a single product, frequently should be the appropriate unit of analysis. Such a “fleet‐centered” approach supplies a richer perspective on the comparative emissions burdens generated by alternative products, and it eliminates certain simplifying assumptions imposed upon the analysis by a product‐centered approach.