Global environmental mapping of the aeronautics manufacturing sector

JOURNAL OF CLEANER PRODUCTION

卷:297

Article

Pierrat, Eleonore¹  Rupcic, Lea¹  Hauschild, Michael Z.¹  Laurent, Alexis¹ 

[1] Tech Univ Denmark DTU, Dept Technol Management & Econ, Sect Quantitat Sustainabil Assessment, DK-2800 Lyngby, Denmark

关键词: Sustainability;    Aircraft;    Life cycle;    Carbon footprint;    Water withdrawals;    Energy requirement;   

DOI  :  10.1016/j.jclepro.2021.126603

来源: Elsevier

【 摘 要 】

The aeronautics sector has been regarded as an important contributor to environmental problems, due to aircraft fuel consumption and combustion emissions. Little is known about the other parts of the value chain, in particular the aircraft manufacturing. The complexity of aircraft systems and the lack of public data have prevented analysis of disaggregated contributions of the value chain to key environmental problems -analysis that could provide valuable insight to reduce environmental impacts. We have addressed this knowledge gap by developing a new mapping method to quantify the environmental burden of the aeronautics manufacturing sector. The mapping builds on environmental databases and available market data representing 84% of the sector's sales in 2017. Our mapping results show that material production and aircraft manufacturing consumed 69.5 TWh energy, emitted 18.1 MtCO(2)e, and withdrew 475 million m(3) water, with the largest contributions stemming from airframe manufacturers and aluminium alloy production. Carbon emissions predominantly occur in the manufacturing stage while water withdrawals mainly originate from the material production. These findings demonstrate the relevance of adopting a life cycle perspective, covering the entire value chain, and the importance of ensuring a broad coverage of environmental problems to obtain a comprehensive view of the sector's environmental impacts. Based on our findings, we provide decision-makers in the aeronautics sector with specific recommendations to prioritize their actions and steer towards a more environmentally sustainable industry. (c) 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

【 授权许可】

Free