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Open Access

ARTICLE

Experimental Study of Forced Convective Heat Transfer in a Copper Tube Using Three Types of Nanofluids

Zahraa N. Hussain1,*, Jamal M. Ali1,*, Hasan S. Majdi2, Abbas J. Sultan1, H. Al-Naseri3
1 Department of Chemical Engineering, University of Technology-Iraq, Baghdad, 10066, Iraq
2 Department of Chemical Engineering and Petroleum Industries, Al-Mustaqbal University, Babylon, 51001, Iraq
3 Chemical Engineering Department, College of Engineering, Tikrit University, Tikrit, 34001, Iraq
* Corresponding Author: Zahraa N. Hussain. Email: email; Jamal M. Ali. Email: email

Fluid Dynamics & Materials Processing https://doi.org/10.32604/fdmp.2024.056292

Received 19 July 2024; Accepted 15 October 2024; Published online 26 November 2024

Abstract

The use of nanofluids as heat transfer media represents an innovative strategy to enhance heat transfer performances. This study investigates experimentally the turbulent convective heat transfer characteristics of water-based nanofluids containing TiO2, CuO, and graphene nanoplatelet (GNP) nanoparticles as they flow through a copper tube. Both the dynamic viscosity and thermal conductivity of these nanofluids were modeled and experimentally measured across varying nanoparticle concentrations (0.01, 0.02, and 0.03 vol.%) and temperatures (25°C, 35°C, and 45°C). The findings indicate that the behavior of nanofluids depends on the parameter used for comparison with the base fluid. Notably, both the friction factor and heat transfer coefficient increase with higher nanoparticle volume concentrations at a constant Reynolds number. Theresults further reveal that the GNP/water nanofluid, with a volume concentration of 0.03% at 45°C, exhibit the highest Nusselt number, followed by the CuO/water and TiO2/water nanofluids, with respective increases of 17.8%, 11.09%, and 8.11%.

Keywords

Nanofluid; heat transfer coefficient; thermal conductivity; heat transfer enhancement

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