Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/29514
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dc.contributor.authorSiricharoenpanitch A.
dc.contributor.authorWiriyasart S.
dc.contributor.authorVengsungnle P.
dc.contributor.authorNaphon N.
dc.contributor.authorNaphon P.
dc.contributor.otherSrinakharinwirot University
dc.date.accessioned2023-11-15T02:08:49Z-
dc.date.available2023-11-15T02:08:49Z-
dc.date.issued2023
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85132667327&doi=10.1080%2f01457632.2022.2068219&partnerID=40&md5=462e1b8f5fe38017ee19a13c7f377111
dc.identifier.urihttps://ir.swu.ac.th/jspui/handle/123456789/29514-
dc.description.abstractThe present study considers the effects of the electromagnetic field and pulsating flow on nanofluids heat transfer and flow characteristics in the three-start helically fluted tube. The experiments are performed using anofluids with the Reynolds number varying from 8000 to 13000, and with an Fe3O4/water nanofluids (Ferrofluid) concentration of 0.005% by volume with and without an electromagnetic field effect. The measured results are verified with the predicted results from the proposed correlations and the published experimental results. As a result of the disturbed flow boundary layer, higher swirling Brownian motion, higher local thermal conductivity, and the mixing of turbulent intensity, the heat transfer performance also increases. For a given pulsating flow of 30 Hz, the Nusselt number enhancement increases significantly to 137.7% and 156.7% for the helical depth ratios of 0.028 and 0.093, respectively. The helically fluted tube with a helical depth ratio of 0.093 and a helical pitch ratio of 0.93 yields the highest Nusselt number improvement. The Nusselt number under the electromagnetic field effect increases by 19.0% and 14.4% for the pulsating flow of 30 Hz and 20 Hz, respectively. Finally, a comprehensive evaluation index is applied to estimate thermo-hydraulic performance. It is found that the comprehensive evaluation index increases with the increasing Reynolds number at first and then decreases as the Reynolds number increases further. © 2022 Taylor & Francis Group, LLC.
dc.publisherTaylor and Francis Ltd.
dc.titleHeat Transfer of Ferrofluid in Fluted Tubes with an Electromagnetic Field
dc.typeArticle
dc.rights.holderScopus
dc.identifier.bibliograpycitationHeat Transfer Engineering. Vol 44, No.5 (2023), p.426-441
dc.identifier.doi10.1080/01457632.2022.2068219
Appears in Collections:Scopus 2023

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