Numerical investigation of effect of different parameter on heat transfer for a crossflow heat exchanger by using nanofluids

Basit Öğe Kaydı
dc.contributor.authorKılıç, Mustafa
dc.contributor.authorUllah, Atta
dc.date.accessioned2025-01-06T17:30:15Z
dc.date.available2025-01-06T17:30:15Z
dc.date.issued2021
dc.description.abstractThe heat loads on electronic systems of an unmanned air vehicle are a significant problem. So enhancing heat transfer is a critical key to solve these thermal problems. This study is focused on increasing heat transfer rate in a crossflow heat exchanger by using nanofluids numerically. Effects of different Reynolds number of hot fluid (Re = 6000, 8000, 10000, 12000), different inlet velocity (Vair,inlet = 30, 45, 60, 90 m/s) of cooling fluid, temperature of cooling air at different altitude (Tair,inlet = 15, 10, 4, ?17°C) and different types of nanofluids (Cu-H2O, CuO-H2O, TiO2-H2O, H2O) on heat transfer were studied numerically. Realizable k-? turbulence model of ANSYS FLUENT computational fluid dynamics code was used for numerical analysis. It was obtained that increasing Reynolds number from Re = 6000 to 12000 causes an increase of 44.65% on average Nusselt Number. Increasing inlet velocity of cooling air from 30 m/s to 90 m/s causes an increase of 6.96% on average Nusselt number. Increasing or decreasing air inlet temperature at different attitude does not cause any significant change on average Nusselt number. Using Cu-H2O nanofluid, which shows the best performance, causes an increase of 6.63% on average Nusselt number according H2O. Numerical results were also compared with experimental results at literature. It was obtained that numerical model can represent experimental results in a good level. © 2021. Yıldız Technical University. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
dc.identifier.doi10.18186/THERMAL.1051287
dc.identifier.endpage1989
dc.identifier.issn2148-7847
dc.identifier.issueSupplement14
dc.identifier.scopus2-s2.0-85123768849
dc.identifier.scopusqualityQ3
dc.identifier.startpage1980
dc.identifier.trdizinid1172257
dc.identifier.urihttps://doi.org/10.18186/THERMAL.1051287
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1172257
dc.identifier.urihttps://hdl.handle.net/20.500.14669/1551
dc.identifier.volume7
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherYildiz Technical University
dc.relation.ispartofJournal of Thermal Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241211
dc.subjectComputational Fluid Dynamics
dc.subjectHeat exchanger
dc.subjectNanofluid
dc.subjectUnmanned Air Vehicles
dc.titleNumerical investigation of effect of different parameter on heat transfer for a crossflow heat exchanger by using nanofluids
dc.typeArticle

Dosyalar

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu
TR-Dizin İndeksli Yayınlar Koleksiyonu