Publisher DOI: 10.3390/app12020597
Title: Are sustainable aviation fuels a viable option for decarbonizing air transport in Europe? An environmental and economic sustainability assessment
Language: English
Authors: Barke, Alexander 
Bley, Timo 
Thies, Christian 
Weckenborg, Christian 
Spengler, Thomas Stefan 
Keywords: Biokerosene; Life cycle assessment; Life cycle costing; Sustainable aviation fuels; Synthetic kerosene; Well-to-wake analysis
Issue Date: 8-Jan-2022
Publisher: MDPI
Source: Applied Sciences (Switzerland) 12 (2): 597 (2022-01)
Abstract (english): 
The use of drop-in capable alternative fuels in aircraft can support the European aviation sector to achieve its goals for sustainable development. They can be a transitional solution in the short and medium term, as their use does not require any structural changes to the aircraft power-train. However, the production of alternative fuels is often energy-intensive, and some feedstocks are associated with harmful effects on the environment. In addition, alternative fuels are often more expensive to produce than fossil kerosene, which can make their use unattractive. Therefore, this paper analyzes the environmental and economic impacts of four types of alternative fuels compared to fossil kerosene in a well-to-wake perspective. The fuels investigated are sustainable aviation fuels produced by power-to-liquid and biomass-to-liquid pathways. Life cycle assessment and life cycle costing are used as environmental and economic assessment methods. The results of this well-to-wake analysis reveal that the use of sustainable aviation fuels can reduce the environmental impacts of aircraft operations. However, an electricity mix based on renewable energies is needed to achieve significant reductions. In addition, from an economic perspective, the use of fossil kerosene ranks best among the alternatives. A scenario analysis confirms this result and shows that the production of sustainable aviation fuels using an electricity mix based solely on renewable energy can lead to significant reductions in environmental impact, but economic competitiveness remains problem-atic.
ISSN: 2076-3417
Journal: Applied Sciences-Basel 
Document Type: Article
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