Thermal performance of shell-and-tube polymeric hollow fiber heat exchangers as oil coolers

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dc.contributor.authorAstrouski, Iljacs
dc.contributor.authorKůdelová, Terezacs
dc.contributor.authorBartuli, Erikcs
dc.coverage.issue11cs
dc.coverage.volume63cs
dc.date.issued2024-10-25cs
dc.description.abstractMotor oil must be appropriately treated in motors, and aluminum plate heat exchangers are used to cool it. An aluminum heat exchanger is an additional part of the oil treatment module, which increases its size and weight. Two compact plastic shell-and-tube heat exchangers were tested alongside with aluminum heat exchanger to evaluate the efficiency of the plastic cooling core inside the oil module. A total of 63 experimental points were tested on three heat exchangers with good thermal balance (discrepancy of about 1,8 %), and the data were used to evaluate the heat transfer coefficients. While plastic unit PA11 showed the heat outputs exceeding the heat output of the aluminum plate unit by about 7 %, the pressure drops were about ten times higher. The unit PEEK showed good performance and pressure drops on the oil side, but the heat transfer was limited by a small heat transfer surface. Analysis of thermal resistances confirmed that the thermal resistance between the wall and the oil is dominant due to the oil's low thermal conductivity and high viscosity. The results showed that optimization of the fiber structures is needed, aiming to increase the oil flow around the fiber structures.en
dc.formattextcs
dc.format.extent1-11cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCase Studies in Thermal Engineering. 2024, vol. 63, issue 11, p. 1-11.en
dc.identifier.doi10.1016/j.csite.2024.105329cs
dc.identifier.issn2214-157Xcs
dc.identifier.orcid0000-0003-1716-5242cs
dc.identifier.orcid0000-0001-5055-9310cs
dc.identifier.orcid0000-0002-3479-414Xcs
dc.identifier.other191237cs
dc.identifier.researcheridK-3618-2014cs
dc.identifier.researcheridD-8692-2018cs
dc.identifier.researcheridD-8676-2018cs
dc.identifier.scopus56941896200cs
dc.identifier.scopus57667460300cs
dc.identifier.scopus55616890300cs
dc.identifier.urihttp://hdl.handle.net/11012/249960
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofCase Studies in Thermal Engineeringcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2214157X24013601cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2214-157X/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectOil cooleren
dc.subjecthollow fibersen
dc.subjectshell and tube heat exchangeren
dc.subjectplasticsen
dc.titleThermal performance of shell-and-tube polymeric hollow fiber heat exchangers as oil coolersen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-191237en
sync.item.dbtypeVAVen
sync.item.insts2025.03.06 11:53:41en
sync.item.modts2025.03.05 09:32:08en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Laboratoř přenosu tepla a prouděnícs
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