Numerical Study of Heat Transfer Enhancement using Water and Ethylene Glycol Mixture based Nanofluids as Coolants in Car Radiators
Y. Geetha1, S. Sudhakar babu2
1Y. Geetha, Engineer at Schneider Electric, Hyderabad, Telangana, India.
2Sudhakar Babu Thanikanti, Chaitanya Bharathi Institute of Technology (CBIT), Hyderabad, Telangana, India.

Manuscript received on 13 April 2019 | Revised Manuscript received on 19 May 2019 | Manuscript published on 30 May 2019 | PP: 1295-1301 | Volume-8 Issue-1, May 2019 | Retrieval Number: A2174058119/19©BEIESP
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Abstract: Conventional heat transfer fluids such as water and engine oil are widely used in the automobile radiator in recent times. However, to enhance the thermal performance of the system, a lot more is needed from the heat transfer fluid perspective. One of the important techniques to enhance heat transfer is that to improve the thermal conductivity of working fluid with inclusion of nano-sized solid particles as additives. The present paper includes the studies to evaluate the performance of the heat transfer characteristics of water/anti-freezing based nanofluid as a coolant for car radiator. Ethylene Glycol (EG), which is an anti -freezing agent that is added at 50% to water at 50% as base liquid. The metal oxide nanoparticles Al2O3 and CuO are dispersed into base fluid at 0.05%, 0.15% and 0.3% volume concentrations. The thermo physical properties of both nanofluids are calculated and assessed with the help literature work. The mass stream rate of nanofluid in the radiator tubes is varied from 4 to 6 lit/min. With the help ANSYS FLUENT 17.2 solver, the outlet temperature, convective heat transfer coefficient and Nusselt numbers for each concentration of each nanofluids is investigated by varying the mass flowrate.
KEYWORDS: Nano Fluids, Heat Transfer Coefficient, Thermal Conductivity.
Scope of the Article: Numerical Modelling of Structures