EFFECTS OF SINUSOIDAL STRIP ELEMENT WITH DIFFERENT AMPLITUDES ON HEAT TRANSFER AND FLOW CHARACTERISTICS OF CIRCULAR CHANNELS

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dc.authoridAltun, Aziz Hakan/0000-0002-1546-1104
dc.authoridGurdal, Mehmet/0000-0003-2209-3394
dc.authorid, adnan/0000-0001-8129-3930
dc.contributor.authorAltun, Aziz Hakan
dc.contributor.authorGurdal, Mehmet
dc.contributor.authorBerber, Adnan
dc.date.accessioned2024-09-29T16:06:24Z
dc.date.available2024-09-29T16:06:24Z
dc.date.issued2019
dc.departmentKarabük Üniversitesien_US
dc.description.abstractIn this study, the effect of Reynolds number in turbulent flow on heat transfer and flow characteristics for different sinusoidal decoupled strip elements placed separately from the pipe was investigated experimentally. Experiments were carried out under forced convection and constant heat flux conditions. Corrugated strip elements were positioned axially at the pipe center, which draws a sinusoid used as a turbulator. Experiments were repeated for three different amplitudes of sinusoidal strip elements with 3D/4 width, D/8, 3D/16, and D/4. Experiments showed that although the strip elements enhanced heat transfer at different rates, they also caused a considerable pressure drop. As a result, it was seen that the heat transfer ratio, i.e., the Nusselt number, increased with the amplitude value. This ratio is 47% to 80% at the D/8 amplitude, 44% to 100% at the 3D/16 amplitude, and 75% to 174% at the D/4 amplitude in a straight pipe. It was determined that the friction coefficient is significantly affected by a sinusoidal corrugated strip element. It was determined that the value of friction coefficient is around 0.02 in a smooth pipe, 0.17 to 0.25 at n = D/8, 0.35 to 0.42 at n = 3D/16, and 0.43 to 0.45 at n = D/4.en_US
dc.identifier.doi10.1615/HeatTransRes.2018025038
dc.identifier.endpage616en_US
dc.identifier.issn1064-2285
dc.identifier.issn2162-6561
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-85065029533en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage605en_US
dc.identifier.urihttps://doi.org/10.1615/HeatTransRes.2018025038
dc.identifier.urihttps://hdl.handle.net/20.500.14619/6819
dc.identifier.volume50en_US
dc.identifier.wosWOS:000459756000005en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherBegell House Incen_US
dc.relation.ispartofHeat Transfer Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectheat transfer enhancementen_US
dc.subjectsinusoidal strip elementen_US
dc.subjectpressure drop and friction in pipeen_US
dc.titleEFFECTS OF SINUSOIDAL STRIP ELEMENT WITH DIFFERENT AMPLITUDES ON HEAT TRANSFER AND FLOW CHARACTERISTICS OF CIRCULAR CHANNELSen_US
dc.typeArticleen_US

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