Integrating Hybrid Life Cycle Assessment with Multiobjective Optimization: A Modeling Framework.

Integrating Hybrid Life Cycle Assessment with Multiobjective Optimization: A Modeling Framework.
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将混合生命周期评估与多目标优化相结合:建模框架。

DOI:
10.1021/acs.est.5b04279
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发表时间:
2016
影响因子:
11.4
通讯作者:
F. You
F. You
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
D. Yue;S. Pandya;F. You

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通过结合生命周期评价(LCA)和多目标优化(MOO),生命周期优化(LCO)框架不仅可以评估给定产品的环境影响,还可以比较不同的替代方案,并确定生态和经济上更好的决策。尽管最近在LCA方法的发展,大多数LCO应用程序开发基于过程的LCA,这导致系统边界截断和低估的真实影响。在这项研究中,我们提出了一个全面的LCO框架,无缝集成MOO与集成的混合LCA。它量化了直接和间接的环境影响,并将其纳入决策过程中,除了更传统的经济标准。拟议的LCO框架是通过在英国的一个潜在的生物乙醇供应链的可持续设计的应用程序。结果表明,拟议的混合LCO框架确定了相当数量的间接温室气体排放(高达58.4%),基本上忽略了基于过程的LCO。在所考虑的生物质原料备选办法中,从气候角度来看,使用木质生物质生产生物乙醇是最可取的选择,而小麦和小麦秸秆混合使用作为原料将是最具成本效益的选择。
By combining life cycle assessment (LCA) with multiobjective optimization (MOO), the life cycle optimization (LCO) framework holds the promise not only to evaluate the environmental impacts for a given product but also to compare different alternatives and identify both ecologically and economically better decisions. Despite the recent methodological developments in LCA, most LCO applications are developed upon process-based LCA, which results in system boundary truncation and underestimation of the true impact. In this study, we propose a comprehensive LCO framework that seamlessly integrates MOO with integrated hybrid LCA. It quantifies both direct and indirect environmental impacts and incorporates them into the decision making process in addition to the more traditional economic criteria. The proposed LCO framework is demonstrated through an application on sustainable design of a potential bioethanol supply chain in the UK. Results indicate that the proposed hybrid LCO framework identifies a considerable amount of indirect greenhouse gas emissions (up to 58.4%) that are essentially ignored in process-based LCO. Among the biomass feedstock options considered, using woody biomass for bioethanol production would be the most preferable choice from a climate perspective, while the mixed use of wheat and wheat straw as feedstocks would be the most cost-effective one.
DOI: 10.1021/es103410q
发表时间: 2011-03-15
影响因子: 11.4
作者:
Acquaye, Adolf A.;Wiedmann, Thomas;McQueen-Mason, Simon
通讯作者: McQueen-Mason, Simon