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dc.contributor.advisorCherubini, Francesco
dc.contributor.advisorWatanabe, Marcos Djun Barbosa
dc.contributor.authorBallal, Vedant Pushpahas
dc.date.accessioned2022-09-27T17:21:49Z
dc.date.available2022-09-27T17:21:49Z
dc.date.issued2022
dc.identifierno.ntnu:inspera:110283387:64500619
dc.identifier.urihttps://hdl.handle.net/11250/3021946
dc.descriptionFull text not available
dc.description.abstract
dc.description.abstract‘E-fuels’ or ‘electrofuels’ are hydrocarbon fuels synthesized from hydrogen and carbon dioxide, where hydrogen is produced from electricity via electrolysis of water, and carbon dioxide can be captured from a fossil or biogenic source or the atmosphere. The characteristics of e-fuels make them perfect substitutes for their fossil-based counterparts and their deployment at scale can help transition towards a low-carbon aviation sector in Europe. Nine distinct production scenarios are considered to evaluate the climate impacts of aviation e-fuels by combining various carbon sourcing and hydrogen production technologies. The climate impacts of these fuels are investigated using the GWP20, GWP100, and GTP100 climate metrics, which encompass the short- to long-term spectrum of climate impacts. In evaluating the climate impacts of the life cycle of these synthetic fuels, the effect of NTCFs in addition to GHGs is analyzed. A prospective LCA methodology is used to examine the deployment of these fuels in the European aviation sector over the subsequent three decades (2030- 2050) using two contrasting climate policy scenarios and the locations of Poland and Norway as a point of comparison. Our study demonstrates that using e-fuels could be a way to lessen the climate effects of using fossil fuels in the European aviation sector, but the magnitude of the benefits will be greatly influenced by several parameters, including the choice of the carbon source, electrolyzer efficiencies, electricity input from decarbonized grids, and the implementation of environmental policies over the near future. As per our study, the prospective benefits of e-fuels produced with biogenic carbon, are generally greatest in the future and can achieve a maximum climate mitigation potential of 69% in 2050 as compared to Fossil Jet fuels (FJFs). The atmospheric carbon-derived e-fuels, which are the most electricity-dependent pathway, also have the potential to achieve the same level by 2050. However, it will largely depend on the decarbonization of the local electricity mix. Due to the re-emission of fossil carbon during the combustion stages of the fuel life cycle, the climate mitigation benefits of fossil carbon-based e-fuels over FJFs are only expected to reach a maximum of 18% by 2050.
dc.languageeng
dc.publisherNTNU
dc.titleExploring the climate impacts of aviation e-fuels in Europe through a prospective Life Cycle Assessment
dc.typeMaster thesis


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