Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/343948
Full metadata record
DC FieldValueLanguage
dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampSilva, Carlos Adriano Moreira da-
dc.contributor.authorunicampSaraiva, Samuel Vitor-
dc.contributor.authorunicampBonetti, Darlan-
dc.contributor.authorunicampCunha, Rosiane Lopes da-
dc.contributor.authorunicampSilva, Flávio Vasconcelos da-
dc.contributor.authorunicampFileti, Ana Maria Frattini-
dc.typeArtigopt_BR
dc.titleApplication of acoustic models for polydisperse emulsion characterization using ultrasonic spectroscopy in the long wavelength regimept_BR
dc.contributor.authorSilva, Carlos A. M.-
dc.contributor.authorSaraiva, Samuel V.-
dc.contributor.authorBonetti, Darlan-
dc.contributor.authorHiguti, Ricardo T.-
dc.contributor.authorCunha, Rosiane L.-
dc.contributor.authorPereira, Luiz O. V.-
dc.contributor.authorSilva, Flavio V.-
dc.contributor.authorFileti, Ana M. F.-
dc.subjectModelos acústicospt_BR
dc.subject.otherlanguageAcoustic modelspt_BR
dc.description.abstractUltrasonic spectroscopy is a technique that often has been used for measuring the particle size distribution in suspensions and emulsions. The ability to analyze concentrated heterogeneous systems and optically opaque samples, without the need for dilution, is the major advantage over alternative technologies, such as light scattering method. Several physical models used to interpret the measured attenuation spectra have been applied considering monodisperse particles. However, the polydisperse particle distributions are found in many practical applications, for example, in crude oil emulsions during droplet coalescence or flocculation. The polydispersity effects are usually important and need to be incorporated into theoretical predictions. For this work, acoustic spectroscopy within the frequency range 6–14 MHz was used to measure the droplet size distribution of water-in-sunflower oil emulsions for a volume fraction range from 10 to 50 % and considering monomodal size distribution. The results obtained from experimental attenuation spectra have been compared with the predictions of acoustic models from simple and multiple scattering, extended multiple scattering, and other simpler models of propagation usually applied to the long wavelength regime. The droplet size distributions from theoretical and experimental attenuation spectra were calculated with a deconvolution algorithm. The size distribution results obtained by ultrasonic spectroscopy showed good agreement with those obtained by laser diffraction analysis. The findings indicate that the methodology employed in this study is suitable for polydisperse particle size characterization for moderate concentrations up to 20 %pt_BR
dc.relation.ispartofColloids and surfaces A: physicochemical and engineering aspectspt_BR
dc.relation.ispartofabbreviationColloid surf. A: physicochem. eng. asp.pt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryPaíses Baixospt_BR
dc.publisherElsevierpt_BR
dc.date.issued2020-
dc.language.isoengpt_BR
dc.description.volume602pt_BR
dc.rightsFechadopt_BR
dc.sourceSCOPUSpt_BR
dc.identifier.issn0927-7757pt_BR
dc.identifier.eissn1873-4359pt_BR
dc.identifier.doi10.1016/j.colsurfa.2020.125062pt_BR
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0927775720306555pt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsordocumentnumbersem informaçãopt_BR
dc.date.available2020-06-30T14:19:04Z-
dc.date.accessioned2020-06-30T14:19:04Z-
dc.description.provenanceSubmitted by Sanches Olivia (olivias@unicamp.br) on 2020-06-30T14:19:04Z No. of bitstreams: 0en
dc.description.provenanceMade available in DSpace on 2020-06-30T14:19:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2020en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/343948-
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentDepartamento de Engenharia de Alimentospt_BR
dc.contributor.departmentDepartamento de Engenharia de Sistemas Químicospt_BR
dc.contributor.departmentDepartamento de Engenharia de Sistemas Químicospt_BR
dc.contributor.unidadeFaculdade de Engenharia Químicapt_BR
dc.contributor.unidadeFaculdade de Engenharia Químicapt_BR
dc.contributor.unidadeFaculdade de Engenharia Químicapt_BR
dc.contributor.unidadeFaculdade de Engenharia de Alimentospt_BR
dc.contributor.unidadeFaculdade de Engenharia Químicapt_BR
dc.contributor.unidadeFaculdade de Engenharia Químicapt_BR
dc.subject.keywordAttenuation spectrapt_BR
dc.subject.keywordDroplet characterizationspt_BR
dc.subject.keywordEmulsionpt_BR
dc.subject.keywordUltrasonic spectroscopypt_BR
dc.identifier.source2-s2.0-85086501950pt_BR
dc.creator.orcidsem informaçãopt_BR
dc.creator.orcid0000-0002-4424-7668pt_BR
dc.creator.orcidsem informaçãopt_BR
dc.creator.orcid0000-0003-2228-5492pt_BR
dc.creator.orcid0000-0003-1046-3976pt_BR
dc.creator.orcid0000-0001-6826-2101pt_BR
dc.type.formArtigopt_BR
dc.identifier.articleid125062pt_BR
dc.description.sponsorNoteThe authors would like to thank Petrobras and ANP for providing financial support for this work. Acknowledgments are also extended to ALFA–Artificial Lift & Flow Assurance Research Group for technical assistance in the design of the measurement system and the discussions, and CAPESpt_BR
Appears in Collections:FEA - Artigos e Outros Documentos
FEQ - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.