Experimental Investigation of Viscosity and Thermal Conductivity of Hi-Tech Therm60 Based BaO Nanofluids

Abstract

Nanofluids have drawn a lot of interest lately because of their superior heat transmission capabilities. In order to achieve better heat transfer capabilities, a study on the chemical co-precipitation production of barium oxide (BaO) nanoparticles and its Hi-Tech Therm60-based nanofluid was completed in this work. The effective production of the BaO nanoparticles has been validated by investigations using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FTIR). There were no discernible alterations in the FT-IR spectra linked to the prepared BaO:Hi-Tech Therm60 nanofluids. This suggests that there is no interaction between the created nanofluid and particles. Next The thermal characteristics of BaO: Hi-Tech Therm60 nanofluids, such as their thermal conductivity and viscosity, were thoroughly examined. Measurements were made of the thermal conductivities of the nanofluid at various weight percentages of nanoparticles (0.001%, 0.002%, 0.003%, 0.004%, 0.005%, and 0.006 wt%) at different temperatures from 28 °C to 50 °C. Temperature and weight fraction increases were observed to correlate with improved thermal conductivity of BaO nanofluids. At 50 °C and 0.001 weight percent, the highest thermal conductivity measured was 0.151 W/mK. 10.4 cP was the equivalent viscosity. Compared to the base fluid, it has good viscosity and thermal conductivity.