High Thermal Conductivity Nanofluid Fabrication by Continuously Controlled Submerged Arc Nano Synthesis System (CC-SANSS)

The purpose of this study is to innovative high thermal conductivity Cu-based nanofluid preparing method, the continuous control submerged arc nano synthesis system (CC-SANSS). The key parameters such as current, voltage, pulse-duration, electric resistance and temperature of the de-ionized liquid are investigated carefully in order to obtain more uniform nanoparticles suspension in nanofluids. The morphology of nanoparticles prepared in de-ionized liquid exhibits the needle-like shape, with an average width of 20nm and length of 80nm. In addition, transient hot-wire method is used to measure the thermal conductivity properties of nanofluids. It is found that improvement of thermal conductivity are 35.99%, 18.26%, 8.5%, 1.95%, respectively when ingredient of nanofluids are 2.0%, 1.0%, 0.5%, 0.1% Volume at 30°Cwater-based nanofluids containing copper oxide nanoparticle. Experimental result shows that better thermal properties are obtained when low concentration nanofluids produced by CC-SANSS are compared to the ones produced by other processes.