Akademik Veri Yönetim Sistemi
Journal of the Faculty of Engineering and Architecture of Gazi University, cilt.40, sa.1, ss.331-341, 2024 (SCI-Expanded)
With the development of technology in our country and in the world, the need for energy is increasing day by day. For this reason, efficient use of heat energy is very important. Nanofluid systems created using small amounts of nanomaterials increase heat transfer and energy efficiency due to their superior thermophysical properties. For this reason, it is important to produce nanofluids and examine their thermophysical properties. In this study, it was aimed to synthesize titanium dioxide (TiO2) nanoparticles in the presence of Polyethylene glycol (PEG) and Alginate additives by high temperature oxidation method and to obtain water-based nanofluids at different concentrations from the synthesized nano titanium dioxides. In addition, different concentrations of sodium dodecyl sulfate (SDS) and gum arabic were used to examine the effect of surfactant type and concentration on the stabilization of the nanofluid. XRD, SEM, FTIR and BET analysis were used for the characterization of the synthesized TiO2 particles. Stabilization and density, which are important thermophysical properties of nanofluids, were also measured in this study. As a result of the experimental studies, it was seen that TiO2 nanoparticles produced with Alginate additive were more successful in preparing and stabilizing nanofluids than those produced with PEG additive.