Performance and Analysis of Al2O3 Nano-fluid, Water in Radiator

In radiators and thermal exchangers, nanofluids are suitable substitutes for cooling fluid. To increase the radiator's efficiency, materials with higher thermal properties are required. One of the methods for rising heat transfer in radiators is the use of nanofluids. The cooling of the car radiator was explored by the use of nanofluids in this study. Results of the research indicated that the used nanofluids can increase heat transfer up to 50%. Reduction in size and weight of the radiators are among the achievements of this research. In addition to reducing the production cost, better designation of cars is possible when the radiator becomes smaller in size. Better cooling, on the other hand, has beneficial effects on fuel consumption and lowers the amount of fuel consumption. In heat transfer fluids that are normally water or ethylene glycol, nanofluids are formed by stable dispersion of nanoparticles. A system similar to a car radiator cooling system was developed and produced in this study. By varying the amount of Al2O3 nano particles blended with base fluid water, three different concentrations of nano-fluid 0.5%, 1%, 1.5% (by vol.) were obtained. The size of nanoparticle used was 100 nm. Nanofluid (2 to 8 mixture of water to Al2O3) was used instead of radiator cooling fluid. –Al2O3- WATER is used as nanoparticles in this project. Al2O3- water nanofluids consisting of 20±2 nm diameter particles at three different particle mass concentrations of 1%, 3% and 5% are used as the working fluid. The fluid inlet temperature was varying from 40°C to 75°C to find the optimum inlet condition. Results demonstrate that increasing coolant flow rate can improve the heat transfer performance.