ABSTRACT
In recent years, nanofluids have become one of the innovative alternative fluids that can improve performance and provide benefits to thermal systems in the automotive, food and beverage industry, cosmetic industry, and power generation. Increasing the efficiency of the heat exchanger system has many advantages, such as low energy consumption, environmental friendliness, and reduced costs. Graphene oxide nanoparticles have excellent thermal, optical, mechanical, and electrical properties. Therefore, the addition of graphene oxide to the base fluid in the form of water can improve the performance of the shell and tube-type heat exchanger. The variations used in this study are the mass concentration of graphene oxide nanoparticles and the mass flow rate of nanofluids in a heat exchanger. The results showed that the heat exchanger performance increased along with the addition of the mass fraction of graphene oxide nanoparticles by 15%. The highest heat transfer rate was achieved by adding the mass fraction of graphene oxide nanoparticles as much as 0.006%. In addition, increasing the flow rate of nanofluids also increases the performance of the heat transfer rate.
