Measurements of bimodal droplet size distribution of emulsions using ultrasonic spectroscopy in the long and intermediate wavelength regimes

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dc.contributor.authorSilva, Carlos A.M.
dc.contributor.authorSaraiva, Samuel V.
dc.contributor.authorBonetti, Darlan
dc.contributor.authorHiguti, Ricardo T. [UNESP]
dc.contributor.authorCunha, Rosiane L.
dc.contributor.authorPereira, Luiz O.V.
dc.contributor.authorSilva, Flavio V.
dc.contributor.authorFileti, Ana M.F.
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionCENPES
dc.date.accessioned2022-04-28T19:47:36Z
dc.date.available2022-04-28T19:47:36Z
dc.date.issued2022-04-28
dc.description.abstractUltrasonic spectroscopy has a great potential to measure the particle sizes in suspensions and emulsions of many industrial sectors. However, one significant challenge is measuring particle sizes in a broader range and concentrated systems due to the lack of theoretical models covering large particle wave-particle interaction mechanisms. An alternative way lies with the simultaneous application of ultrasonic theories that operate in long and intermediate wavelength regimes. This work used acoustic spectroscopy to measure size droplets of water-in-sunflower oil emulsions for a volume concentration range of 10 to 50% considering bimodal distributions. The observed attenuation spectra results were compared with the simplest acoustic models applied for the long and intermediate wavelength regimes. The results of ultrasonic spectroscopy agreed with those obtained by laser diffraction and indicate that the methodology used in this study is suitable to measure bimodal droplet distributions with diameters from 0.1 to 1000 μm and concentrations up to 40% vol.en
dc.description.affiliationSchool of Chemical Engineering University of Campinas, São Paulo
dc.description.affiliationSchool of Engineering São Paulo State University, São Paulo
dc.description.affiliationSchool of Food Engineering University of Campinas, São Paulo
dc.description.affiliationPetrobras R&D Center CENPES
dc.description.affiliationUnespSchool of Engineering São Paulo State University, São Paulo
dc.identifierhttp://dx.doi.org/10.1016/j.ces.2021.117274
dc.identifier.citationChemical Engineering Science, v. 252.
dc.identifier.doi10.1016/j.ces.2021.117274
dc.identifier.issn0009-2509
dc.identifier.scopus2-s2.0-85119909122
dc.identifier.urihttp://hdl.handle.net/11449/222918
dc.language.isoeng
dc.relation.ispartofChemical Engineering Science
dc.sourceScopus
dc.subjectAcoustic models
dc.subjectAttenuation spectra
dc.subjectBimodal droplet distribution
dc.subjectEmulsion
dc.subjectUltrasonic spectroscopy
dc.titleMeasurements of bimodal droplet size distribution of emulsions using ultrasonic spectroscopy in the long and intermediate wavelength regimesen
dc.typeArtigo

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