Improvement Of Heat-Transfer Using Non-Newtonian Nano-Fluid Fe3O4 Under Constant Heat Flow In Horizontal Tube

Volume 22 No 2 (2024)

Medjahed Driss Meddah, Medjadji Nassira, Abdelkader Mahammedi, Abde lmadjid Kaddour, Abdessalam Kifouche, Abdelkader Aris

DOI: 10.48047/nq.2024.22.2.NQ24008

Abstract

The behavior of the Fe2O3/water nano-fluid with turbulent flow is numerically studied. The nano-particles Fe2O3 with a diameter of 36 nm were scattered into water with volume fractions of 0,2%, 0,6%, 0,8%, 1%, 1,5% and 2% in water with 20C° circulating in a circular tube with Reynold 's number (3000 – 22000) are examined under constant heat flow condition. A "single phase model" numerical method is employed. The results showed an excellent agreement between data correlates, our numerical and experimental results, as well as that Fe2O3 nano-particles have been added to the base fluid to increase the heat-transfer characteristics.

Keywords

Turbulent, nano-fluid, friction factor, circular tube, heat flux, Nusselt number; Reynolds.

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