Measurement of Thermal Conductivity of ZnO and SiO2 Water Based Nanofluids

. The preparation and definition of thermal characteristics of novel-type nanofluids are critical for understanding the fluidity mechanism of nanofluids and selecting appropriate nanofluids for application. This study seeks to give an alternative fluid for various applications and to fill a new type of nanofluid requirement in the literature that has been identified by many research groups. In this study, a water-based ZnO-SiO2 nanofluid is synthesized in two steps, and the thermal conductivity values are experimentally determined. It is found that thermal conductivity increases with the increase in the concentration of particles. The maximum deviation of thermal conductivity of SiO2 nanofluid is found to be 1.30% whereas in the case of ZnO nanofluid it is found to be 2.65%.