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Enhancing Heat Transfer Efficiency Through Nanofluid Integration for
Thermal Management System: A Numerical Investigation
HAFIZ Azeem Hamza1,a, ALTAMASH Shabbir2,b*
and HAFIZ Muhammad Tahir Nisar 2,c
1School of Interdisciplinary Engineering & Sciences (SINES), National University of Sciences and
Technology, Islamabad, 44000, Pakistan
2U.S-Pakistan Centre for Advanced Studies in Energy (USPCAS-E), National University of
Sciences and Technology (NUST), Sector H-12, Islamabad, Pakistan
ahafizazeemhamza@gmail.com, *baltamashnust19@gmail.com, ctnisar786@yahoo.com
Keywords: Thermal Management System, Nanofluids. Heat transfer coefficient, Computational fluid
dynamics
Abstract. This study investigates the potential of nanofluids in enhancing heat transfer performance
in a 2D tube through a combination of computational fluid dynamics (CFD) simulations and
experimental analysis. Nanofluids, which are suspensions of nanoparticles in base fluids, offer
improved thermal conductivity compared to conventional coolants. The study employs computational
fluid dynamics (CFD) simulations to replicate the experimental setup and parameters used by Mustafa
Moraveji et al. The objective is to assess the heat transfer coefficient (h) and compare the results with
experimental data. The computational analysis utilizes CFD simulations to study the flow of
nanofluids through the 2D tube and evaluate the heat transfer coefficients at different axial locations.
The results indicate that the addition of nanofluids to the base fluid leads to an increase in the heat
transfer coefficient, suggesting enhanced heat transfer performance due to the presence of
nanoparticles. The findings are compared with experimental data from previous studies to validate
the simulations. The study contributes valuable insights into the heat transfer characteristics of
nanofluids in a 2D tube and demonstrates their potential for improving heat transfer efficiency.
Further research can focus on optimizing nanofluid compositions, investigating additional
parameters, and exploring practical applications in heat exchange systems for enhanced thermal
management.
Introduction
The cooling system in an automobile plays a critical role in maintaining engine performance by
effectively managing the engine's operating temperature. During the combustion process,
temperatures inside the engine can rise to extreme levels, reaching 1500 to 2000 ℃. If this heat is not
efficiently dissipated, it can exceed the melting points of the engine's metal components, leading to
severe damage. By circulating coolant through various components, such as the radiator, water pump,
thermostat, and cooling fans, the system absorbs heat from the engine and dissipates it to the
surrounding environment [1] [2]. There are two main types of cooling systems commonly used in
industrial and automobile applications [3]: air cooling systems and water-cooling systems. Air
cooling systems rely on the flow of air to remove heat from the engine. The heat conducted to the
outer body of the engine is dissipated by the surrounding air. Fins are often attached to the engine's
outer surface to increase the surface area and enhance heat transfer. The effectiveness of an air-
cooling system depends on factors such as the total surface area of the fins, the velocity of the cooling
air, the quantity of air flowing over the engine surface, and the temperature of the cooling air. While
water cooling systems, on the other hand, utilize water as a coolant to dissipate heat from the engine.
A water pump circulates the coolant through passages within the engine, absorbing heat from the
engine components. The heated coolant is then directed to a radiator where it releases heat to the
surrounding air. The cooled coolant is recirculated back into the engine to repeat the cooling cycle.
Water cooling systems are more commonly used in larger vehicles, such as cars, trucks, and heavy
Key Engineering Materials Submitted: 2024-01-03
ISSN: 1662-9795, Vol. 993, pp 93-103 Revised: 2024-07-19
doi:10.4028/p-LwToX6 Accepted: 2024-07-19
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