Renaldi Feriyantama, Avita Ayu Permanasari, Muhammad Shahrul Mubarok, Sukarni Sukarni, Poppy Puspitasari
Nanofluid is a basic fluid which is dispersed by nanoparticles to improve heat transfer characteristics. Thermal properties of nanofluids such as thermal conductivity, viscosity, specific heat and density, affect the heat transfer characteristics in the heat exchanger. The nanofluid applied to the heat exchanger was TiO2 nanoparticles dispersed in a mixture of ethylene glycol/water. The type of heat exchanger used in this study is double pipe with counter flow. Variations in the base fluid ratio of ethylene glycol and water (20:80, 40:60, 60:40, 80:20) and the flow rate of nanofuid (0.3, 0.6, 0.9 L/min) were used in this study. Tests are carried out experimentally and simulations to provide valid test results. This study gave significant results in the addition of TiO2 nanoparticles to the increase in thermophysical properties followed by a decrease in the concentration of ethylene glycol. The heat transfer characteristics show good results in nanofluids when compared to base fluids. The computational study also gives the same result with a deviation of 5.55%, the analysis on the heat exchanger can be done by simulation to save costs. © 2023 American Institute of Physics Inc.. All rights reserved.
Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia; Centre of Advanced Materials for Renewable Energy (CAMRY), Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia
