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Sustainable aviation fuels and imminent technologies - CO2 emissions evolution towards 2050

2021-06-17Journal article Open access
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dc.contributor.authorAbrantes, Ivo
dc.contributor.authorFerreira, Aana F.
dc.contributor.authorSilva, André
dc.contributor.authorCosta, Mário
dc.date.accessioned2021-12-30T09:14:41Z
dc.date.available2023-06-17T00:30:20Z
dc.date.issued2021-06-17
dc.description.abstractNowadays, concerns about rising emissions and climate change have raised the issue of decarbonization. Several approaches have been promoted in the aeronautical sector to reduce CO2 emissions. The present work provides quantitative data to support decision-making for the first pillar of International Air Transport Association (IATA) strategy to mitigate aviation climate impact. This strategy comprises improving aircraft technology and deploying sustainable low-carbon fuels. The most promising technologies for an imminent application are new engine architecture and natural laminar flow. On the other hand, efforts have been put to produce Sustainable Aviation Fuel (SAF) reaching the point where some methods for the production of alternative jet fuel are already approved by ASTM. Therefore, the present work quantifies the future reduction of CO2 emissions by 2050 in the aeronautical sector with these strategies. For this purpose, two methodologies are used, a numerical model to calculate fuel consumption and CO2 emissions from the global air transport fleet. For the SAF analysis, it is developed an approach that considers, besides the SAF production, the feedstocks, and the production pathway. Two cases and three scenarios represent the technological improvements and quantify the effects of new aircraft concepts and technologies on future CO2 emissions. For the SAF analysis, four scenarios and two conditions assess the different production capacities and feedstocks. The combined effect of technologies with SAF is considered verifying if the goals proposed by IATA, carbon-neutral growth from 2020, and a reduction of 50% in net emissions by 2050 compared to 2005 levels are achieved. The assessment results reveal that the goals cannot be met only with the combined action of imminent aircraft technologies and the use of alternative fuels. Carbon-neutral growth is only reached when it is considered the combined effect of technologies with the scenario where the amount of SAF introduced is higher (an increase of 15% annually between 2030 and 2050). However, this carbon-neutral growth is only possible to start in 2040. Imminent aircraft technologies can reduce up to 15% in CO2 emissions when compared to the Business as Usual scenario. The different feedstocks used in each process to produce SAF do not have a considerable impact on reducing CO2 emissions, the maximum difference registered between each condition was 1.47%.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologiapt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.jclepro.2021.127937pt_PT
dc.identifier.issn09596526
dc.identifier.urihttp://hdl.handle.net/10400.6/11527
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevier Ltdpt_PT
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0959652621021557pt_PT
dc.subjectSustainable aviation fuelspt_PT
dc.subjectAircraftpt_PT
dc.subjectAviationpt_PT
dc.subjectScenariospt_PT
dc.subjectCO2 emissionspt_PT
dc.subjectAir transportationpt_PT
dc.subjectClimate changept_PT
dc.subjectDecision makingpt_PT
dc.subjectFeedstockspt_PT
dc.subjectLaminar flowpt_PT
dc.subjectCarbonpt_PT
dc.subjectSustainable aviation fuelpt_PT
dc.titleSustainable aviation fuels and imminent technologies - CO2 emissions evolution towards 2050pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.citation.startPage127937pt_PT
oaire.citation.titleJournal of Cleaner Productionpt_PT
oaire.citation.volume313pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameAbrantes
person.familyNameFerreira
person.familyNameResende Rodrigues da Silva
person.familyNameCosta
person.givenNameIvo
person.givenNameAna Filipa
person.givenNameAndré
person.givenNameMario
person.identifierJ-4185-2012
person.identifier78749
person.identifier.ciencia-idB21F-D2B4-282A
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.ciencia-id1C11-B8E3-8FDF
person.identifier.orcid0000-0001-9039-0185
person.identifier.orcid0000-0001-7933-9792
person.identifier.orcid0000-0002-4901-7140
person.identifier.orcid0000-0002-3118-2762
person.identifier.ridB-7312-2014
person.identifier.ridG-5329-2010
person.identifier.scopus-author-id48761142300
person.identifier.scopus-author-id11440407500
person.identifier.scopus-author-id56343088300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctSem custos de publicação. © 2021 Elsevier Ltd. All rights reserved.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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