DESIGN AND ANALYSIS OF DOUBLE-PIPE HEAT EXCHANGER USING BOTH HELICAL AND ROTATING INNER PIPE

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dc.authoridKOCA, Tarkan/0000-0002-6881-4153
dc.authorwosidKOCA, Tarkan/ABH-4304-2020
dc.contributor.authorKoca, Tarkan
dc.contributor.authorCitlak, Aydin
dc.date.accessioned2024-08-04T20:50:13Z
dc.date.available2024-08-04T20:50:13Z
dc.date.issued2021
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn this study, the effects of rotating straight and helical inner tubes is experimentally discussed to determine heat transfer and pressure losses in rotating tubes and improve heat transfer. The outer tube remains stationary and the inner tube is rotated at different speeds in the work. In the experiments for straight and helical tubes, the flow regime is turbulent. According to the results, Nusselt number, pressure loss, and efficiency of heat exchanger were gauged. In addition, empirical formulas were obtained for each pipe type. It is observed that as the rotation speed of the pipe increases, the heat transfer rate increases. The pipe that provides the best increase in heat transfer is the five helixes tubes. At five helixes tubes; after the number of revolutions per minute exceeds 300, the increase in heat transfer rate has almost halt. At five helixes tubes and at 300 rpm speed when the flow of cold water through the annular gap with the fluid passing through the inner tube is equal, the heat transfer increases by 124.10% compared to straight tube, 23.47% compared to two helixes tubes, 7.92% compared to three helixes tubes, and 1.65% compared to four helixes tubes. Maximum effectiveness was obtained while rotating with 300 rpm in five helixes pipes.en_US
dc.description.sponsorshipFirat University Scientific Research Projects Unit [1294]en_US
dc.description.sponsorshipThis work was supported by the Firat University Scientific Research Projects Unit (Grants No. 1294).en_US
dc.identifier.doi10.2298/TSCI201010066K
dc.identifier.endpage1559en_US
dc.identifier.issn0354-9836
dc.identifier.issn2334-7163
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85104721687en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage1545en_US
dc.identifier.urihttps://doi.org/10.2298/TSCI201010066K
dc.identifier.urihttps://hdl.handle.net/11616/99896
dc.identifier.volume25en_US
dc.identifier.wosWOS:000639334800044en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherVinca Inst Nuclear Scien_US
dc.relation.ispartofThermal Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectdouble-pipe heat exchangeren_US
dc.subjecthelical tubesen_US
dc.subjectrotationally inner pipeen_US
dc.subjecteffectivenessen_US
dc.subjectexperimentalen_US
dc.subjectthermal scienceen_US
dc.titleDESIGN AND ANALYSIS OF DOUBLE-PIPE HEAT EXCHANGER USING BOTH HELICAL AND ROTATING INNER PIPEen_US
dc.typeArticleen_US

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