Yohana Greace, Avita Ayu Permanasari, Poppy Puspitasari, Siti Nur Azella Zaine, Mohd Afzanizam Mohd Rosli
This study is about the comparison between the effect of mixing of surfactant sodium dodecyl sulfate (SDS) and without surfactant on the oxide, which consists of Al2O3, TiO2, and CuO. Obtained by synthesis using a mass fraction of 0.1% SDS and 1 gram of Al2O3/TiO2/CuO dissolved in 1000 ml of distilled water and then stirred using a magnetic stirrer for 1 hour at a speed of 650 rpm. Furthermore, without surfactant, using 1 gram of Al2O3/TiO2/CuO was dissolved in 1000 ml of distilled water and then stirred using a magnetic stirrer. Then the ultrasonic process was for 1 hour to get more homogeneous nanoparticles. The addition of surfactants to nanofluids can increase the stability and viscosity of the nanofluids. Obtained from the results of the Viscometer test with temperature variations from 20 0C-60 0C, the values of viscosity, shear rate, and shear stress. Then tested on Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Fourier Transform Infra-Red (FTIR), and the results of the analysis of Conductivity Thermal and Specific Heat tests. This study aims to determine whether the addition of surfactant to oxide affects the value of viscosity, shear rate, shear stress, and thermal conductivity. © 2024 American Institute of Physics Inc.. All rights reserved.
State University of Malang, Faculty of Engineering, Department of Mechanical Engineering, Semarang 5, East Java, Malang, 65145, Indonesia; Center of Advanced Materials for Renewable Energy (CAMRY), State University of Malang, Semarang 5, East Java, Malang, 65145, Indonesia; Department of Fundamental and Applied Science, Faculty of Science and Information Technology, Petronas University of Technology, Bandar Seri Iskandar, Perak, Tronoh, 32610, Malaysia; Department of Mechanical Engineering, Faculty of Mechanical Engineering, Technical University of Malaysia Melaka, Hang Tuah Jaya, Durian Tunggal, Melaka, 76100, Malaysia