Atıf İçin Kopyala
Yalçın G., Öztuna S., Dalkılıç A. S., Nakkaew S., Wongwises S.
CURRENT NANOSCIENCE, cilt.18, sa.4, ss.520-534, 2022 (SCI-Expanded)
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Yayın Türü:
Makale / Tam Makale
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Cilt numarası:
18
Sayı:
4
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Basım Tarihi:
2022
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Doi Numarası:
10.2174/1573413718666220111103031
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Dergi Adı:
CURRENT NANOSCIENCE
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Derginin Tarandığı İndeksler:
Science Citation Index Expanded (SCI-EXPANDED), Scopus, Agricultural & Environmental Science Database, Biotechnology Research Abstracts, Compendex, EMBASE
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Sayfa Sayıları:
ss.520-534
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Anahtar Kelimeler:
Hybrid nanofluids, SiO2, ND, thermal conductivity, viscosity, stability, thermophysical properties of nanofluids, HEAT-TRANSFER ENHANCEMENT, DYNAMIC VISCOSITY, RHEOLOGICAL BEHAVIOR, AL2O3, PERFORMANCE, SURFACTANT, FLUIDS, SIZE
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Yıldız Teknik Üniversitesi Adresli:
Evet
Özet
Objective:
In the present investigation, thermal conductivity, and viscosity properties of water-based SiO2-ND hybrid nanofluid were measured, experimentally
Methods:
Nanofluids were prepared by using two-step method and with three different (0.5%, 0.75%, and 1%) concentrations. Every concentration had three different SiO2-ND mixtures (50% SiO2 - 50% ND, 33% SiO2 - 66% ND, 66% SiO2 - 33% ND).
Results:
The most stable sample was measured as -33.4 mV. Measurements of viscosity and thermal conductivity were done from 20 oC to 60 oC at every 10 oC. Thermal conductivity data were measured by thermal conductivity analyzer and viscosity data were measured by tube viscometer. The highest thermal conductivity enhancement was measured for 1% SiO2 0.33 : ND 0.66 at 40 oC and highest relative dynamic viscosity calculated as 4.19 for 1% SiO2 0.33 : ND 0.66 at 40 oC. A comparison table is also given to show the zeta potential values-concentration relations
Conclusion:
Finally, two different correlations for predicting thermal conductivity and viscosity were proposed for practical usage.