Development of a probabilistic life cycle assessment methodolody adapted to the telecommunication sector and combining date reliability and validity

开发适合电信行业并结合数据可靠性和有效性的概率生命周期评估方法

• 批准号: 321345-2005
• 负责人: Samson, Réjean
• 金额: $ 6.34万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=325145
• 关键词: Development; probabilistic; life; cycle; assessment

Life cycle assessment (LCA) is a methodology which considers both mass and energy inputs and outputs over the entire life of a system (which can be a product or a service) and translates these into environmental impacts.  Although LCA is governed by international standards (ISO 14040), the method faces criticism for the variability of its results (either inventory or environmental impacts depending on the level of detail of the study conducted) due to uncertainties surrounding the system data studied.  While approaches have been proposed to consider several types of uncertainty associated with the system data, no method combining these types of uncertainties has yet been developed.  The global variability of data input can be characterized by its reliability and its validity with respect to the data quality requirements of the study.  This research project develops a methodology based on the consideration of these two characteristics to define the uncertainties associated with the system data and then to expand these uncertainties to the LCA results namely, environmental impacts.  The aim of the project is twofold.  On one hand, it defines a clear and accurate methodology to manage uncertainty in LCA and in doing so, tones down criticism regarding LCA.  On the other hand, the developed methodology is operationalized into probabilistic LCA software for a better interpretation of LCA results.  This research project is applied to the telecommunications sector in collaboration with Bell Canada.

生命周期评价（LCA）是一种综合考虑系统在整个生命周期内的质量和能量输入输出的方法（可以是产品或服务），并将其转化为环境影响。虽然LCA受国际标准管辖，（ISO 14040），该方法因其结果的可变性而受到批评（根据所进行的研究的详细程度，可以是清单或环境影响）由于周围的系统数据的不确定性研究。虽然已经提出的方法来考虑几种类型的不确定性与系统数据，目前还没有一种方法可以将这些类型的不确定性结合起来。数据输入的全局变异性可以通过其可靠性和有效性来表征，这两个特性是研究数据质量要求的基础。本研究项目开发了一种方法，基于这两个特性来定义与系统数据相关的不确定性，然后将这些不确定性扩展到LCA的结果，即环境影响。该项目的目的是双重的。一方面，它定义了一个明确和准确的方法来管理LCA中的不确定性，并在这样做的时候，减轻了对LCA的批评。另一方面，该方法已被应用于概率LCA软件中，以更好地解释LCA结果。该研究项目应用于与加拿大贝尔公司合作。