Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids

Amiri, A. and Arzani, H.K. and Kazi, S.N. and Chew, B.T. and Badarudin, A. (2016) Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids. International Journal of Heat and Mass Transfer, 97. pp. 538-546. ISSN 0017-9310

Full text not available from this repository.
Official URL: https://doi.org/10.1016/j.ijheatmasstransfer.2016....

Abstract

Herein, an experimental study on thermo-physical properties of ethylene glycol-functionalized graphene nanoplatelets/water-ethylene glycol nanofluids (EGGNP-WEG) and a numerical study on the convective heat transfer over a backward-facing step are performed. Accordingly, EGGNP was first synthesized covalently to achieve a stable colloidal solution in water-ethylene glycol mixture. Some characterizations were applied to analyze the surface functionality and morphology of EGGNP-flakes. To study the convective heat transfer coefficient in turbulent regime, a numerical study is performed at different weight fractions of EGGNP. According to the results, a higher weight concentration of EGGNP in basefluid indicates a greater extent of convective heat transfer coefficient and thermal conductivity, implying higher heat transfer rate over a backward-facing step.

Item Type: Article
Uncontrolled Keywords: Backward-facing step; Heat transfer; Turbulent; Ethylene glycol; Functionalization; Graphene nanoplatelets
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 16 Nov 2017 05:14
Last Modified: 16 Nov 2017 05:14
URI: http://eprints.um.edu.my/id/eprint/18288

Actions (login required)

View Item View Item