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Energy-Material Cycles: A materials-based perspective of vehicle energy systems
Resources, Conservation and Recycling ( IF 13.2 ) Pub Date : 2023-05-25 , DOI: 10.1016/j.resconrec.2023.107039
John Mulrow, Joe F. Bozeman, Shantanu Pai, Emily Grubert, Sybil Derrible

In this article, we propose an Energy-Material Cycles (EM-cycles) model to facilitate communication and comparison of tradeoffs that exist across energy systems. We ask: How would a materials-based perspective on vehicle energy systems change how the life cycle of combustion, non-renewable electric, and renewable-electric vehicles are characterized?

We account for equivalent material transformation steps in a way that can be applied to both combustion-based and electrified energy systems. This is important due to the increasing coexistence of fossil and non-fossil systems, and the dominance of fuelsbased perspectives. We apply the EM-cycles model to compare recent vehicle models and draw conclusions for environmental assessment of decarbonization in general. Results show that electrification may present a material efficiency advantage rather than an energy efficiency advantage over combustion - a result that differs from typical energy system classifications. Results motivate a discussion of energy system perspectives and the advantages of a materials-based perspective.



中文翻译:

能源-材料循环:车辆能源系统的材料视角

在本文中,我们提出了一种能源-材料循环 (EM-cycles) 模型,以促进交流和比较能源系统中存在的权衡。我们问:基于材料的车辆能源系统观点将如何改变燃烧、不可再生电动和可再生电动汽车的生命周期特征?

我们以一种可应用于基于燃烧的能源系统和电气化能源系统的方式来考虑等效的材料转化步骤。这一点很重要,因为化石和非化石系统越来越共存,以及基于燃料的观点占主导地位。我们应用 EM 循环模型来比较最近的车辆模型,并得出一般脱碳环境评估的结论。结果表明,与燃烧相比,电气化可能具有材料效率优势,而不是能源效率优势——这一结果不同于典型的能源系统分类。结果激发了对能源系统观点和基于材料的观点的优势的讨论。

更新日期:2023-05-25
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