Single phase flow of nanofluid including graphite and water in a microchannel

Basit Öğe Kaydı
dc.contributor.authorYıldız O.
dc.contributor.authorAçıkgöz Ö.
dc.contributor.authorYıldız G.
dc.contributor.authorBayrak M.
dc.contributor.authorDalkılıç A.S.
dc.contributor.authorWongwises S.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2019
dc.departmentNiğde ÖHÜ
dc.description.abstractIn this study, convective heat transfer performance of a nanofluids containing graphite is studied in an industrial microchannel. In the experiments, initially, to prepare nanofluids at the volume fraction values of 0.5, 1, 1.5, 2%, distilled water has been employed as the base liquid. To provide sedimentation and stabilization of nanofluids in distilled water, Cetyltrimethylammonium bromide (CTAB) is utilized as surfactant. Thermophysical properties of nanofluids such as thermal conductivity, dynamic viscosity, and specific heat are determined experimentally. Furthermore, by building an experimental setup, in the temperature range of 20–30 °C and with temperature intervals of 2 °C, performance experiments are carried out in a microchannel of which hydraulic diameter is 1.6 × 10-3 m. Additionally, experiments have been conducted using nanofluids at different volumetric rates from 1 to 7 l min-1, heat fluxes from 100 to 1100 W, and volume fractions from 0.5 to 2%. Measuring heat flux, temperature, and flow rate, outcomes such as convective heat transfer coefficient, Reynolds number, and Nusselt number are calculated. The validation process of the experimental results has been performed by plotting the figures of Nusselt numbers vs Reynolds ones, and heat transfer coefficient vs supplied heat considering distilled water and nanofluids having various volumetric proportions. Regarding with the performance of nanofluids against distilled water under similar operating conditions, some proportional positive increase are acquired. Using outcomes attained from experiments, new correlations for Nusselt number have been derived with the R2 values around 0.96, and afterward by means of those correlations experimental data have been compared with those in the literature. A large number of measured and calculated data are given in the paper for other researchers to validate their theoretical models. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
dc.description.sponsorshipThailand Research Fund King Mongkut's University of Technology Thonburi Riordan Foundation
dc.description.sponsorshipThis study has been financially supported by Niğde Ömer Halisdemir University Scientific Research Projects Coordination Department, Project Number: FEB 2013/08-BAGEP. All authors also grateful for the Thailand Research Fund (TRF), the National Research University Project (NRU) and King Mongkut’s University of Technology Thonburi through the “KMUTT 55 th Anniversary Commemorative Fund”.
dc.identifier.doi10.1007/s00231-019-02663-5
dc.identifier.issn0947-7411
dc.identifier.scopus2-s2.0-85068838138
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://dx.doi.org/10.1007/s00231-019-02663-5
dc.identifier.urihttps://hdl.handle.net/11480/1551
dc.identifier.wosWOS:000511692200001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherSpringer Verlag
dc.relation.ispartofHeat and Mass Transfer/Waerme- und Stoffuebertragung
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleSingle phase flow of nanofluid including graphite and water in a microchannel
dc.typeArticle

Dosyalar

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu