Refrigeration capacity of silver nanofluids under electrohydrodynamic effect oriented to heat removal in machining process

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dc.contributor.authorFragelli, Renan Luis [UNESP]
dc.contributor.authorSanchez, Luiz Eduardo de Angelo [UNESP]
dc.contributor.authorIngraci Neto, Rubens Roberto [UNESP]
dc.contributor.authorScalon, Vicente Luiz [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:36:07Z
dc.date.available2018-12-11T17:36:07Z
dc.date.issued2018-09-01
dc.description.abstractNanofluids have been the focus of many laboratories and research centres which seek practical applications for them. Considering the challenges in machining process related with the high temperature in the cutting zone and its influence on the tool life, in this study the nanofluids are employed in a system analogous to the an internally cooled toolholder which can eliminate the use of cutting fluids. In this way, the purpose of this work consists in evaluate the influence of addition of silver nanoparticles in different concentrations in a solution of ethylene glycol/DI-water on the heat transfer coefficient. Moreover, inside the system, the nanofluids were subjected to an electric field in the heat transfer region in order to analyse the influence of the electrohydrodynamic effect. The tests showed that the nanoparticles influenced the fluid viscosity increasing its value up to 20.3% in higher concentrations and also influenced the convective heat transfer coefficient (h). Furthermore, it was presented a positive influence of the electric field enhancing the value of the convective heat transfer coefficient (h) up to 11% when the concentration was 0.039 vol%. On the other hand, the nanoparticle deposition on the heated surface resulted in reduction of the heat transfer coefficient.en
dc.description.affiliationSao Paulo State University – UNESP Department of Mechanical Engineering, Luiz Edmundo Carrijo Coube Avenue 14-01
dc.description.affiliationUnespSao Paulo State University – UNESP Department of Mechanical Engineering, Luiz Edmundo Carrijo Coube Avenue 14-01
dc.format.extent11-19
dc.identifierhttp://dx.doi.org/10.1016/j.expthermflusci.2018.02.022
dc.identifier.citationExperimental Thermal and Fluid Science, v. 96, p. 11-19.
dc.identifier.doi10.1016/j.expthermflusci.2018.02.022
dc.identifier.file2-s2.0-85042876082
dc.identifier.issn0894-1777
dc.identifier.lattes7748171642151206
dc.identifier.scopus2-s2.0-85042876082
dc.identifier.urihttp://hdl.handle.net/11449/179633
dc.language.isoeng
dc.relation.ispartofExperimental Thermal and Fluid Science
dc.relation.ispartofsjr1,271
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectElectrohydrodynamic effect
dc.subjectHeat transfer
dc.subjectNanofluids
dc.subjectSilver nanoparticles
dc.subjectSurface deposition
dc.titleRefrigeration capacity of silver nanofluids under electrohydrodynamic effect oriented to heat removal in machining processen
dc.typeArtigo
unesp.author.lattes7748171642151206[2]
unesp.departmentEconomia, Sociologia e Tecnologia - FCApt

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Botucatu - FCA - Faculdade de Ciências Agronômicas
Artigos - Engenharia Mecânica - FEB