DOI: https://doi.org/10.55373/mjchem.v25i1.76

Keywords: Nanofluid; zirconium dioxide; SEM; thermal conductivity; XRD

Abstract

Researchers have known for decades that nanofluids have superior thermal performance. However, the observation of thermal conductivity (THC) for nanofluids in water has not been thoroughly studied. This study used a two-step technique to prepare zirconium dioxide (ZrO2) nanofluids. Utilizing scanning electron microscope (SEM) and X-ray diffraction (XRD), the characteristics of synthesized nanoparticles were evaluated. Then, by dispersing the nanoparticles in distilled water (dH2O), ZrO2 nanoparticles of the concentrations 0.5, 1.0, and 1.5 % by weight were prepared. A KD2 Pro thermal device measured the thermal conductivity and the temperature ranged from 30 to 50°C. From the experimental findings, the nanofluids’ thermal conductivity increased according to the volume concentration of nanoparticles in the base fluid.