Abstract
Conventional heat transfer fluids like water and engine oil are widely employed in the automobile radiator in recent times. However, to boost the thermal performance of the system, lots more is required from the heat transfer fluid perspective. One of the important techniques to reinforce heat transfer is that to boost the thermal conductivity of working fluid with inclusion of nano-sized solid particles as additives. this paper includes the studies to judge the performance of the heat transfer characteristics of water based nanofluid as a coolant for car radiator. The metal oxide nanoparticles Al2O3 and SiO2 are dispersed into base fluid at 10% volume concentrations. The thermo-physical properties of both nanofluids are calculated and assessed with the assistance literature work. The mass stream rate of nanofluid within the radiator tubes is 4 lit/min. With the assistance of ANSYS FLUENT 19.2 solver, the outlet temperature, convective heat transfer coefficient, Heat Transfer effectiveness and Nusselt numbers for the concentration of every nanofluids is investigated by the mass rate of flow.
Highlights
Convectional heat transfer fluids such as water, minerals oil and ethylene glycol play an important role in many industrial sectors including power generation, chemical production, air-conditioning, transportation and microelectronics
Various techniques have been applied to enhance their heat transfer capabilities, their performance is often limited by their low thermal conductivities which obstruct the performance enhancement and compactness of heat exchangers
The term nanofluid was coined by Choi who was working with the group at the Argonne National Laboratory (ANL), USA, in 1995
Summary
Convectional heat transfer fluids such as water, minerals oil and ethylene glycol play an important role in many industrial sectors including power generation, chemical production, air-conditioning, transportation and microelectronics. 27 Int. J. of Analytical, Experimental and Finite Element Analysis www.rame.org.in heat transfer coefficients compared to those of base fluids like oil or water. J. of Analytical, Experimental and Finite Element Analysis www.rame.org.in heat transfer coefficients compared to those of base fluids like oil or water Owing to their enhanced thermophysical properties, nanofluids have numerous industrial, engineering and biomedical applications such as heat transfer applications: industrial cooling, smart fluids; nanofluid coolant: vehicle cooling, electronics cooling; medical applications: magnetic drug targeting and nanocryosurgery. Fundamental properties must be investigated before studying the warmth transfer performance of nanofluids, because the performance measurements like heat transfer, energy, exergy etc. Supported the available studies on the basic properties of nanofluids, it's found that, thermal conductivity, viscosity and density augment with the enhancement of volume concentration. Since the properties of the nanofluids are better than conventional fluids there are strong opportunity to extend the general performance of the warmth exchangers by using nanofluids as working fluids and energy losses can be reduced everywhere the planet
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