Comparative analysis of fluid flow in mini channel with nano fluids and base fluid

Abstract

Comparative study is carrying out between nano fluid Al2O3 + CuO + ZnO + H2O and water as solitary fluid through experimental and simulation result. The outcome of nano fluid and solo base fluid H2O flowing in middle rectangular mini channel with or without insert were admit, for study the conduct of fluid flow and heat exchange features. During composing of nano fluid 0.05%-0.1% volume fraction, 10–20 nm size nano particles were mixed with 0.5 ml CTAB surfactant. Experimentation were manage for different operating parameters under counter flow conditions, where nano fluid is flowing inside mini channel of 2 mm diameter with flow rate 0.0001562 to 0.006255 ml/min and hot water is flowing inside the concentric tube of 3.6 cm diameter with flow rate of 0.000782 ml/min. The operating temperature of nano fluid and hot water were 308 K and 323 K. As per obtained results, the proposed composition of nanofluid showed better performance than normal water due to better thermal conductivity and extra molecular area gain in nanofluid due to addition of nano particle with base fluid, where as better optimum results were observed in case of rectangular mini channel with macro insert compared with other geometry because of rich turbulency gain and extra exposed area due to macro insert.