International Journal of Heat and Mass Transfer, ( ISI ), Volume (97), No (1), Year (2016-2) , Pages (538-546)

Title : ( Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water–ethylene glycol nanofluids )

Authors: Ahmad Amiri , , , , ,

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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.

Keywords

, Backward-facing step, Heat transfer, Turbulent, Ethylene glycol, Functionalization, Graphene nanoplatelets
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@article{paperid:1068353,
author = {Amiri, Ahmad and and and and },
title = {Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water–ethylene glycol nanofluids},
journal = {International Journal of Heat and Mass Transfer},
year = {2016},
volume = {97},
number = {1},
month = {February},
issn = {0017-9310},
pages = {538--546},
numpages = {8},
keywords = {Backward-facing step; Heat transfer; Turbulent; Ethylene glycol; Functionalization; Graphene nanoplatelets},
}

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%0 Journal Article
%T Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water–ethylene glycol nanofluids
%A Amiri, Ahmad
%A
%A
%A
%A
%J International Journal of Heat and Mass Transfer
%@ 0017-9310
%D 2016

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