Effect of Al2O3 nanoparticles on laminar, transient and turbulent flow of isopropyl alcohol

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dc.contributor.authorNikulin, A.
dc.contributor.authorMoita, A. S.
dc.contributor.authorMoreira, A. L.N.
dc.contributor.authorMurshed, S. M.S.
dc.contributor.authorHuminic, A.
dc.contributor.authorGrosu, Y.
dc.contributor.authorFaik, A.
dc.contributor.authorNieto-Maestre, J.
dc.contributor.authorKhliyeva, O.
dc.contributor.institutionVALORIZACIÓN DE RESIDUOS
dc.date.accessioned2024-07-24T12:02:09Z
dc.date.available2024-07-24T12:02:09Z
dc.date.issued2019-03
dc.descriptionPublisher Copyright: © 2018 Elsevier Ltd
dc.description.abstractThe laminar, transient and turbulent heat transfer and hydrodynamic of a new nanofluid isopropanol/Al2O3 is investigated in a closed flow loop with a horizontal mini-channel test section (3.5 mm inner diameter) under uniform heat flux conditions. The experiments performed at various inlet temperatures (15, 25, 35 °C), mass flow rates (from 0.00076 to 0.041 kg/s) and nanoparticle concentrations (0.387, 0.992, 3.12, 4.71 mass%). We found that despite the pressure drop increases with Reynolds number and nanoparticles mass fraction the dependence of friction factor for the isopropanol/Al2O3 nanofluid remains the same as for the base fluid. The heat transfer performance of isopropanol/Al2O3 nanofluid was evaluated in two ways (i) depending on the Reynolds number and (ii) product of the mass flow rate and specific heat capacity. The first approach indicates to significant enhancement of the heat transfer coefficient with addition of nanoparticles in all range of experimental parameters. The second approach shows no effect of nanoparticles on the heat transfer coefficient in laminar flow and its deterioration in transient and turbulent flows. Both effects of nanoparticles on the heat transfer are attributed to change in intensity of the turbulence in nanofluids compared to the base fluids. Finally, an influence of nanoparticles on the start of laminar-turbulent transition was examined.en
dc.description.sponsorshipThe authors are grateful for the financial support from Foundation for Science and Technology (FCT), Portugal (project number UID/EEA/50009/2013 ). A.S. Moita acknowledges FCT for financing her contract and exploratory research project through the recruitment programme FCT Investigator (IF 00810-2015). Research was also partially supported by EU COST Action CA15119 (NANOUPTAKE). Moreover, authors acknowledge Professor Vitaly Zhelezny from Institute of Refrigeration, Cryotechnology and Eco-Energy (ONAFT) for his help in this work. We also acknowledge E. Teodori with P. Pontes from Instituto Superior Técnico for their help in experimental setup assembling.
dc.description.statusPeer reviewed
dc.format.extent13
dc.identifier.citationNikulin , A , Moita , A S , Moreira , A L N , Murshed , S M S , Huminic , A , Grosu , Y , Faik , A , Nieto-Maestre , J & Khliyeva , O 2019 , ' Effect of Al 2 O 3 nanoparticles on laminar, transient and turbulent flow of isopropyl alcohol ' , International Journal of Heat and Mass Transfer , vol. 130 , pp. 1032-1044 . https://doi.org/10.1016/j.ijheatmasstransfer.2018.10.114
dc.identifier.doi10.1016/j.ijheatmasstransfer.2018.10.114
dc.identifier.issn0017-9310
dc.identifier.urihttps://hdl.handle.net/11556/3221
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85056217431&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofInternational Journal of Heat and Mass Transfer
dc.relation.projectIDEU COST, CA15119
dc.relation.projectIDFundação para a Ciência e a Tecnologia, FCT, UID/EEA/50009/2013-IF 00810-2015
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsAlO nanoparticles
dc.subject.keywordsFriction factor
dc.subject.keywordsHeat transfer
dc.subject.keywordsIsopropyl alcohol
dc.subject.keywordsNanofluid
dc.subject.keywordsCondensed Matter Physics
dc.subject.keywordsMechanical Engineering
dc.subject.keywordsFluid Flow and Transfer Processes
dc.titleEffect of Al2O3 nanoparticles on laminar, transient and turbulent flow of isopropyl alcoholen
dc.typejournal article
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