Automotive Radiators: An Experimental Analysis of Hybrid Nanocoolant

Hizanorhuda Zurghiba*, Kumaran Kadirgama, M. M. Noor, R. A. Bakar, Semin

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


A hybrid nanocoolant is a novel type of heat transfer enhancement medium that has the potential to enhance the performance of automotive radiators by improving heat transfer efficiency and heat dissipation. The focus of the present work was to investigate the effect of different hybrid nanocoolant mixing ratios on Reynolds number, Nusselt number, Friction factor, heat transfer coefficient and convective heat transfer on heat transfer performance. Single and its hybrid nanocoolant were tested through a commercial-sized automotive radiator and a scaled-down automotive radiator to determine its laminar convective heat transfer. The nanocoolants are prepared with a fixed volume fraction of 0.01 vol% and for hybrid nanocoolants, different ratios of CNC and CuO nanoparticles are formulated. The studies utilised flow rates of 0.75, 1.00, and 1.25 LPM with a radiator inlet liquid temperature of 80°C. The experimental results show that the Reynolds number, Nusselt Number, heat transfer coefficient and convective heat transfer are proportionally related to the volumetric flow rate, while the friction factor decreases when there is an increase in the flow rate. A scale-down radiator with a low-volume concentration of hybrid nanofluids able to improve the heat transfer efficiency by 92.43% compared to conventional fluids in a commercial-sized car radiator.

Original languageEnglish
Article number02004
JournalE3S Web of Conferences
Publication statusPublished - 6 Feb 2024
Event1st International Conference on Advanced Materials and Sustainable Energy Technologies, AMSET 2023 - Bandar Sunway, Malaysia
Duration: 30 Oct 202331 Oct 2023


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