*Assistant Professor, Department of Mechatronics Engineering, K. S. Rangasamy College of Technology, Tiruchengode, India
**Department of Mechanical Engineering, Vivekanandha Institute of Engineering & Technology for Women, Tiruchengode, India
***Department of Mechatronics Engineering, SRM University, Kattangkalathur, Chennai, India
Nanofluids are the special kind of fluid consisting of nanometre sized metal or metal oxide particles in base fluids such as Water, Ethylene Glycol, and Propylene Glycol etc. The present study, mechanical properties such as tensile strength, yield strength, % of elongation, % of reduction in area and surface hardness of the specimens were compared with each other. Nanofluids with three different 0.01, 0.05 and 0.1% volume concentrations were prepared by dispersing Al2O3 with De-ionized water. A two-step method was adopted to prepare the nanofluid. No surfactant was used. Obtained results confirmed that, the heat transfer rate increased with the decrement in nanoparticle concentration in the base fluid. This phenomena show that the percentage of nanoparticle concentration in the base fluid significantly affects the heat transfer rate. Ultimately the mechanical properties such as tensile strength, yield strength, % of elongation, % of reduction in area and surface hardness of the specimens were obtained and compared with each other.
