Numerical Heat Transfer Investigation in a Heat Exchanger Tube with Hexagonal Conical-ring Inserts

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dc.contributor.authorSripattanapipat, Somchai
dc.contributor.authorTamna, Sombat
dc.contributor.authorJayranaiwachira, Nuthvipa
dc.contributor.authorPromvonge, Pongjet
dc.date.accessioned2026-08-06T10:14:28Z
dc.date.available2026-08-06T10:14:28Z
dc.date.issued2016-11-01
dc.description.abstractThe hexagonal conical rings (HCR) modified from the typical conical ring (CR) are used as a turbulence promoter for producing the vortex flows to enhance the heat transfer rate in a heat exchanger tube. To reduce the pressure loss, the V-shaped HCR (V-HCR) obtained by cutting both symmetric plane of the cone-tip of HCR at 30°, 45°and 60°is offered in the present work. The tube fitted with V-HCR elements having a fixed inlet and outlet diameter is numerically investigated. The computation is carried out for Reynolds number in a range of 3000 to 20,000 in a uniform heat-fluxed test tube. The numerical results show that the V-HCR insert leads to much higher heat transfer than the typical CR/HCR insert or the smooth tube alone and also provides lower friction factor. The 30°V-shaped HCR gives the highest heat transfer and thermal performance due to the lowest friction loss, indicating the promising device of the V-HCR.
dc.identifier.citationEnergy Procedia, 100, 522-525, 2016
dc.identifier.doi10.1016/j.egypro.2016.10.213
dc.identifier.issn18766102
dc.identifier.other2-s2.0-85014430553
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/7056
dc.sourceEnergy Procedia
dc.subjectConical ring
dc.subjectHeat exchanger
dc.subjectHeat transfer
dc.subjectTurbulent flow
dc.subjectVortex generator
dc.titleNumerical Heat Transfer Investigation in a Heat Exchanger Tube with Hexagonal Conical-ring Inserts
dc.typeConference Paper

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