This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Numerical Analysis of Nanoparticle-based coolants in Automobile Radiator
ISSN: 0148-7191, e-ISSN: 2688-3627
To be published on April 06, 2021 by SAE International in United States
Event: SAE WCX Digital Summit
This paper presents the numerical analysis of four different nanoparticles namely Aluminium oxide (Al2O3), Silver nitrate (AgNO3), (Fe2O3) and Carbon nanotubes (CNT) mixed with a binary mixture of water and ethylene glycol which is used as a fluid medium in an automobile radiator using louvered fin arrangement and forced convection technique under turbulent flow regime. The rate of coolant flow in the radiator is varied from 2 l/min to 5 l/min, while the velocity of air and temperature are constant. The use of nanofluids in the binary mixture enhanced the heat transfer rate of the radiator as compared to ethylene glycol- water binary mixture as a cooling medium. From the numerical analysis, it is found that CNT-H2O nanofluids exhibited better heat transfer characteristics as compared to Al2O3, Fe2O3, and AgNO3 nanoparticles with the coolant. Furthermore, with higher particle loading with the base fluid, the heat transfer parameters such as Nusselt number and rate of heat transfer enhanced. The convective heat transfer coefficient has a greater influence on the non-dimensional parameter (Nu) as it is a function of hc and thermal conductivity. The numerical study also revealed that on higher flow rates, the Nusselt number and heat transfer increase.