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Single-Droplet Combustion of Jet A-1, Hydroprocessed Vegetable Oil, and Their Blends in a Drop-Tube Furnace

2021-01-25Journal article Open access
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dc.contributor.authorPacheco, Gonçalo
dc.contributor.authorSilva, André
dc.contributor.authorCosta, Mário
dc.date.accessioned2022-01-03T09:48:24Z
dc.date.available2023-01-25T01:30:21Z
dc.date.issued2021-01-25
dc.description.abstractThe environmental impact and the dependence upon fossil fuels in the aeronautical sector have promoted the demand for alternative and greener fuels. The implementation of alternative fuels is one of the main challenges for this sector in the near future. A possible short-term solution might be the blending of biofuels with jet fuel, which would allow for the use of greener fuels and a reduction in the greenhouse gases and pollutant emissions without significant changes in the existing fleets of the companies, with the purpose to develop a “drop-in” fuel. In this context, this work examines the combustion characteristics of single droplets of Jet A-1 (JF), hydroprocessed vegetable oil (NExBTL), and their mixtures in a drop-tube furnace (DTF). The objective of this work is to evaluate the influence of the mixture composition on the fuel characteristics. Droplets with diameters of 155 ± 5 μm, produced by a commercial droplet generator, were injected into the DTF, whose wall temperature and oxygen concentration were controlled. Experiments were conducted for three temperatures (900, 1000, and 1100 °C). The combustion of droplets was evaluated through the images obtained with a high-speed camera coupled with a high magnification lens and an edge detection algorithm. From the images allowed for the analysis of droplet combustion, data are reported for the temporal evolution of droplet sizes and burning rates. The results revealed that the mixtures followed the D2 law, except the mixture with 75% JF for a DTF wall temperature of 1100 °C. The 75% JF mixture did not follow the D2 law as a result of the occurrence of puffing and microexplosions, which enhanced the burning rates. Additionally, it was observed that the mixtures with a higher content of JF present brighter flames and higher burning rates.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologiapt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1021/acs.energyfuels.0c03476pt_PT
dc.identifier.issn08870624
dc.identifier.urihttp://hdl.handle.net/10400.6/11534
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Chemical Societypt_PT
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relation.publisherversionhttps://doi.org/10.1021/acs.energyfuels.0c03476pt_PT
dc.subjectAlternative fuelspt_PT
dc.subjectBiofuelspt_PT
dc.subjectCombustionpt_PT
dc.subjectEdge detectionpt_PT
dc.subjectEdge detectionpt_PT
dc.subjectEnvironmental impactpt_PT
dc.subjectFossil fuelspt_PT
dc.subjectGreenhouse gasespt_PT
dc.subjectJet fuelpt_PT
dc.subjectMixturespt_PT
dc.subjectVegetable oilspt_PT
dc.titleSingle-Droplet Combustion of Jet A-1, Hydroprocessed Vegetable Oil, and Their Blends in a Drop-Tube Furnacept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEMS%2F50022%2F2019/PT
oaire.citation.endPage7241pt_PT
oaire.citation.issue9pt_PT
oaire.citation.startPage7232pt_PT
oaire.citation.titleEnergy & Fuelspt_PT
oaire.citation.volume35pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNamede Sousa Pina Pernicha Pacheco
person.familyNameResende Rodrigues da Silva
person.familyNameCosta
person.givenNameGonçalo
person.givenNameAndré
person.givenNameMario
person.identifierJ-4185-2012
person.identifier78749
person.identifier.ciencia-idC015-C9F8-7C28
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.ciencia-id1C11-B8E3-8FDF
person.identifier.orcid0000-0002-2982-4076
person.identifier.orcid0000-0002-4901-7140
person.identifier.orcid0000-0002-3118-2762
person.identifier.ridG-5329-2010
person.identifier.scopus-author-id11440407500
person.identifier.scopus-author-id56343088300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctSem custos de publicação; © 2021 American Chemical Societypt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication563bb61e-98cf-47a2-ac75-314ed73c01ef
relation.isAuthorOfPublication908e150d-3890-457c-b5da-09c84671cb93
relation.isAuthorOfPublication8d96d7c6-b70d-467d-86ce-e9c07cdce1ea
relation.isAuthorOfPublication.latestForDiscovery908e150d-3890-457c-b5da-09c84671cb93
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