Experimental investigation of the thermal development of two nanofluids in laminar flow
Résumé
Abstract In this study, we conducted an experimental investigation of the thermal development of two nanofluids ( γ -Al 2 O 3 and TiO 2 in deionized water) in a laminar pipe flow. To do so, the local Nusselt number is determined for Reynolds numbers from 650 to 1800. Experiments were carried out with water and two concentrations of water-based nanofluids with aluminum oxide and titanium oxide nanoparticles. The results show that the local Nusselt number remains unchanged with increasing mass concentration and that the process of thermal development is similar to that of water. Similarly, the friction factor is not affected by the addition of the nanoparticles, suggesting that these nanofluids behave like a homogeneous mixtures.
