Thermal Transport and Rheological Properties of Hybrid Nanofluids Based on Vegetable Lubricants

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dc.contributor.authorRibeiro H.
dc.contributor.authorTaha-Tijerina J.J.
dc.contributor.authorGomez O.
dc.contributor.authorAcosta E.
dc.contributor.authorPinto G.M.
dc.contributor.authorMoraes L.R.C.
dc.contributor.authorFechine G.J.M.
dc.contributor.authorAndrade R.J.E.
dc.contributor.authorReinoza J.
dc.contributor.authorPadilla V.
dc.contributor.authorLozano K.
dc.date.accessioned2024-03-12T19:08:32Z
dc.date.available2024-03-12T19:08:32Z
dc.date.issued2023
dc.description.abstract© 2023 by the authors.Nanofluids based on vegetal oil with different wt.% of carbon nanotubes (CNT), hexagonal boron nitride (h-BN), and its hybrid (h-BN@CNT) were produced to investigate the effects of these nano-additives on the thermal conductivity and rheological properties of nanofluids. Stable suspensions of these oil/nanostructures were produced without the use of stabilizing agents. The dispersed nanostructures were investigated by SEM, EDS, XRD, and XPS, while the thermal conductivity and rheological characteristics were studied by a transient hot-wire method and steady-state flow tests, respectively. Increases in thermal conductivity of up to 39% were observed for fluids produced with 0.5 wt.% of the hybrid nanomaterials. As for the rheological properties, it was verified that both the base fluid and the h-BN suspensions exhibited Newtonian behavior, while the presence of CNT modified this tendency. This change in behavior is attributed to the hydrophobic character of both CNT and the base oil, while h-BN nanostructures have lip-lip “bonds”, giving it a partial ionic character. However, the combination of these nanostructures was fundamental for the synergistic effect on the increase of thermal conductivity with respect to their counterparts.
dc.description.issuenumber20
dc.description.volume13
dc.identifier.doi10.3390/nano13202739
dc.identifier.issn2079-4991
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34021
dc.relation.ispartofNanomaterials
dc.rightsAcesso Aberto
dc.subject.otherlanguagehybrid nanofluids
dc.subject.otherlanguagerheological properties
dc.subject.otherlanguagethermal conductivity
dc.titleThermal Transport and Rheological Properties of Hybrid Nanofluids Based on Vegetable Lubricants
dc.typeArtigo
local.scopus.citations4
local.scopus.eid2-s2.0-85176281688
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85176281688&origin=inward
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