Abstract
A feasible solution to increase the effectiveness of the radiator will be the use of stabilized nanofluid. A mixture of small amount of solid particle, whose size is less than 100nm in the fluid phase, is termed as nanofluid. In current work, a small concentration of carboxyl-graphene nanostructure sheets/flakes are used as the solid medium, where conventional Ethylene glycol is used as the fluid medium. Visible checking method has been adopted, to check the stability of the nanofluid. The results showed the promising level of improvement in the values of Nusselt number and Effectiveness of the radiator, without changing the actual design of radiator. Examination of Pressure drop shows, a very small increase in its value even though the nanofluid has been used. About 19% improvement in the value of Effectiveness has been achieved at very small concentrations.
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