Measuring and ANFIS modelling for thermal conductivity of Cu/Zn bimetallic nano fluids

Abstract

The enhancement of the thermo-physical properties for working fluids reduces many limitations in the car design such as reduce the size of the car radiator as well as increase thermal efficiency of the engine. A fluid with a suspension of nanometer size particles is called a Nano fluid, which has the higher thermal properties than its base fluid. A bimetallic core/shell Cu/Zn nanoparticle was suspended in a base fluid to prepare a Nano fluid. A coated transient hot wire apparatus was used to measure the thermal conductivity of the Nano fluid for bimetallic ratio, volume factions, and temperature of the base fluid. Then the ANFIS model was used to modeling the measured data. The comparisons of thermal conductivity of bimetallic Cu/Zn Nano fluids with the monocular Zn and Cu metallic Nano fluids are presented. It is found that thermal conductivity increases with the particle volume concentration. However, the shape of the nanoparticles demonstrates anomalous enhancement in thermal conductivity of bimetallic than monocular metallic Nano fluid.