An Experimental Study on SiO2-ND Hybrid Nanofluid: Thermal Conductivity, Viscosity, and Stability with New Forecast Models
Küçük Resim Yok
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Bentham Science Publ Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
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 a 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 20oC to 60oC at every 10oC. 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 40oC and the highest relative dynamic viscosity was calculated as 4.19 for 1% SiO2 (0.33): ND (0.66) at 40oC. 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.
Açıklama
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
Kaynak
Current Nanoscience
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
18
Sayı
4
