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Enhanced Heat Transfer Performance in a Forward-Facing Channel Using Nanofluids.

Teng, KH, Amiri, A, Kazi, SN, Chew, BT, Shaw, A and Al-Shamma'a, A Enhanced Heat Transfer Performance in a Forward-Facing Channel Using Nanofluids. In: Proceedings of the International Conference on Innovative Applied Energy . (International Conference on Innovative Applied Energy, 14-15th March 2019, Oxford, UK). (Accepted)

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Abstract

Study of turbulent forced convection heat transfer to functionalized multi-walled carbon nanotube nanofluids over a forward-facing step of circular tube has been presented in this paper. Shear stress transport k-ω model was considered as the turbulence model. With the finite volume method, the two-dimensional governing equations were discretized. The effects of Reynolds number, heat fluxes, nanoparticles volume fraction, step height, turbulence on the hydraulics and thermal conductivity of nanofluids on heat transfer to the flowing suspensions were studied. It is noted that the increase in volume concentration of FMWCNT nanofluids or Reynolds number increases the heat transfer coefficient. Use of FMWCNT nanofluids enhances heat transfer significantly compared to the pure water. It has observed that the increase of step height increases the local heat transfer coefficient after contraction. The numerical results were validated closely by the experimental available data.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Heat Transfer; Forward-Facing Channel; Nanofluid; Turbulence Model; Convection
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Built Environment
Date Deposited: 20 Mar 2019 09:27
Last Modified: 20 Mar 2019 09:27
URI: http://researchonline.ljmu.ac.uk/id/eprint/10367

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