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, DOI https://doi.org/10.1016/j.ijheatmasstransfer.2016.02.042.
Full text not available from this repository.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 |
|---|---|
| Funders: | Faculty of Engineering, University of Malaya, Malaysia: High Impact Research Grant UM.C/625/1/HIR/MOHE/ENG/45 and UMRG Grant RP012B-13AET |
| 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 |
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