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Combustion characteristics of a single droplet of hydroprocessed vegetable oil blended with aluminum nanoparticles in a drop tube furnace

2021-06-17Journal article Open access
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dc.contributor.authorFerrão, Inês
dc.contributor.authorSilva, André
dc.contributor.authorMoita, A. S.
dc.contributor.authorMendes, Miguel
dc.contributor.authorCosta, Mário
dc.date.accessioned2021-12-30T09:10:43Z
dc.date.available2023-06-17T00:30:20Z
dc.date.issued2021-06-17
dc.description.abstractThis study examines the burning characteristics and disruptive burning phenomena of single droplets of aluminum nanoparticles (n-Al) stably suspended in a biofuel (HVO). The biofuel used in the present work is a promising alternative fuel already tested in the aviation sector to reduce greenhouse gas and pollutant emissions. Experiments were conducted with two particle sizes (40nm and 70nm) and two particle concentrations (0.5 wt.% and 1.0 wt.%) to study its influence when added to the biofuel. The effect of size and concentration of the aluminum nanoparticles was studied at 1100 °C in a drop tube furnace. This experimental facility allows the study of combustion characteristics of falling droplets, ensuring there is no influence of the supporting fiber on the burning rate and disruptive burning phenomena occurrence. A CMOS high - speed camera coupled with a high magnification lens was used to evaluate the droplet size, burning rate, and micro-explosions. Based on this procedure, pure biofuel droplets were compared with those of biofuel blended with nanoparticles. The results suggest that the combustion characteristics of pure HVO can be enhanced with the addition of aluminum nanoparticles. Furthermore, by decreasing the particle size, a slight increase in the burning rate of nanofuels was noticed. Additionally, an increase in the particle concentration leads to a pronounced increase in the burning rate. The particle concentration also influences the delay and intensity of micro-explosions, disruptive burning phenomena detected at the end of the droplet lifetime.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.fuel.2021.121160pt_PT
dc.identifier.issn0016-2361
dc.identifier.urihttp://hdl.handle.net/10400.6/11526
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevier Ltdpt_PT
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relationNovo: Alternative Liquid Fuels for Aviation Gas Turbines: Experiments and Modelling. Inicial: High Energy Density Fuels in Aviation Gas Turbines: Experiments and Modelling
dc.relationLaboratory of Robotics and Engineering Systems
dc.relation.publisherversionhttps://doi.org/10.1016/j.fuel.2021.121160pt_PT
dc.subjectSingle droplet combustionpt_PT
dc.subjectFree - falling droplet experimentpt_PT
dc.subjectAviation alternative fuelpt_PT
dc.subjectMicro-explosionspt_PT
dc.subjectCombustionpt_PT
dc.subjectAluminum nanoparticlespt_PT
dc.subjectBurning ratept_PT
dc.subjectMicro explosionpt_PT
dc.subjectParticles concentrationpt_PT
dc.subjectBiofuels;pt_PT
dc.subjectGas emissionspt_PT
dc.subjectGreenhouse gasespt_PT
dc.titleCombustion characteristics of a single droplet of hydroprocessed vegetable oil blended with aluminum nanoparticles in a drop tube furnacept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardTitleNovo: Alternative Liquid Fuels for Aviation Gas Turbines: Experiments and Modelling. Inicial: High Energy Density Fuels in Aviation Gas Turbines: Experiments and Modelling
oaire.awardTitleLaboratory of Robotics and Engineering Systems
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F144688%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50009%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/JICAM%2F0003%2F2017/PT
oaire.citation.startPage121160pt_PT
oaire.citation.titleFuelpt_PT
oaire.citation.volume302pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream3599-PPCDT
person.familyNameFerrão
person.familyNameResende Rodrigues da Silva
person.familyNameMoita
person.familyNameMendes
person.familyNameCosta
person.givenNameInês
person.givenNameAndré
person.givenNameAna Sofia Oliveira Henriques
person.givenNameMiguel
person.givenNameMario
person.identifierJ-4185-2012
person.identifier78749
person.identifier.ciencia-idBE10-CCE6-C327
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.ciencia-idB112-B5B1-E592
person.identifier.ciencia-id0B11-10CC-3F3C
person.identifier.ciencia-id1C11-B8E3-8FDF
person.identifier.orcid0000-0003-4391-8930
person.identifier.orcid0000-0002-4901-7140
person.identifier.orcid0000-0001-9801-7617
person.identifier.orcid0000-0001-9817-2334
person.identifier.orcid0000-0002-3118-2762
person.identifier.ridL-8372-2016
person.identifier.ridG-5329-2010
person.identifier.scopus-author-id11440407500
person.identifier.scopus-author-id55760801300
person.identifier.scopus-author-id56343088300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctSem custo de publicação. © 2021 Elsevier Ltd. All rights reserved.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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