Evaluation of internal structure modifications effect of two-phase closed thermosyphon on performance: An experimental study

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dc.contributor.authorOzbas, Engin
dc.contributor.authorSelimli, Selcuk
dc.contributor.authorOzkaymak, Mehmet
dc.contributor.authorFrej, Alsediq S. S.
dc.date.accessioned2024-09-29T16:00:46Z
dc.date.available2024-09-29T16:00:46Z
dc.date.issued2021
dc.departmentKarabük Üniversitesien_US
dc.description.abstractIn this paper, an experimental study has been carried to enhance the effectiveness of a two-phase closed ther-mosyphon (TPCT) type heat pipe. For this purpose, three different designs have been developed by modifying the internal structure so as not to interfere with the physical operation of TPCT. Three heat pipes with different internal structures were manufactured with additional pipes placed longitudinally inside the evaporator and condenser sections of the normal (conventional) TPCT. Ionized pure water is used as a working fluid at the same rate in Normal, Type-1, Type-2, and Type-3 heat pipes. TPCTs are positioned at three different inclination angles, 26 degrees, 41 degrees, and 56 degrees, to see the performance effect not only among themselves but also on the changes made by the gravitational effect. For each tilt angle, four TPCTs were simultaneously powered by solar energy on three different days. As a result of the experiments carried out in July, it has been observed that the optimum incli-nation angle for solar water heated TPCT is 26 degrees. In addition, it was found that with the increase of the angle of tilt, the thermal resistance (R) of the heat pipes also increased and the heat transferability of the TPCT decreased. Comparing the new designs and normal TPCT, Type-2 acted better at tilt angles of both 26 degrees and 41oAs a result, the heat transfer and efficiency of normal TPCT have been improved by almost 14% with Type-2 at the tilt angle of 26 degrees.en_US
dc.identifier.doi10.1016/j.solener.2021.07.004
dc.identifier.endpage1332en_US
dc.identifier.issn0038-092X
dc.identifier.issn1471-1257
dc.identifier.scopus2-s2.0-85109635140en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1326en_US
dc.identifier.urihttps://doi.org/10.1016/j.solener.2021.07.004
dc.identifier.urihttps://hdl.handle.net/20.500.14619/5328
dc.identifier.volume224en_US
dc.identifier.wosWOS:000685908700007en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofSolar Energyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSolar energyen_US
dc.subjectTwo-phase closed thermosyphonen_US
dc.subjectModificationen_US
dc.subjectPerformanceen_US
dc.titleEvaluation of internal structure modifications effect of two-phase closed thermosyphon on performance: An experimental studyen_US
dc.typeArticleen_US

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