Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids
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...
Saved in:
Main Authors: | , , , , |
---|---|
Format: | Article |
Published: |
Elsevier
2016
|
Subjects: | |
Online Access: | http://eprints.um.edu.my/18288/ https://doi.org/10.1016/j.ijheatmasstransfer.2016.02.042 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.um.eprints.18288 |
---|---|
record_format |
eprints |
spelling |
my.um.eprints.182882017-11-16T05:14:05Z http://eprints.um.edu.my/18288/ Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids Amiri, A. Arzani, H.K. Kazi, S.N. Chew, B.T. Badarudin, A. TJ Mechanical engineering and machinery TP Chemical technology 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. Elsevier 2016 Article PeerReviewed 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 https://doi.org/10.1016/j.ijheatmasstransfer.2016.02.042 doi:10.1016/j.ijheatmasstransfer.2016.02.042 |
institution |
Universiti Malaya |
building |
UM Library |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
Universiti Malaya |
content_source |
UM Research Repository |
url_provider |
http://eprints.um.edu.my/ |
topic |
TJ Mechanical engineering and machinery TP Chemical technology |
spellingShingle |
TJ Mechanical engineering and machinery TP Chemical technology Amiri, A. Arzani, H.K. Kazi, S.N. Chew, B.T. Badarudin, A. Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids |
description |
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. |
format |
Article |
author |
Amiri, A. Arzani, H.K. Kazi, S.N. Chew, B.T. Badarudin, A. |
author_facet |
Amiri, A. Arzani, H.K. Kazi, S.N. Chew, B.T. Badarudin, A. |
author_sort |
Amiri, A. |
title |
Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids |
title_short |
Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids |
title_full |
Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids |
title_fullStr |
Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids |
title_full_unstemmed |
Backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids |
title_sort |
backward-facing step heat transfer of the turbulent regime for functionalized graphene nanoplatelets based water-ethylene glycol nanofluids |
publisher |
Elsevier |
publishDate |
2016 |
url |
http://eprints.um.edu.my/18288/ https://doi.org/10.1016/j.ijheatmasstransfer.2016.02.042 |
_version_ |
1643690663881998336 |
score |
13.160551 |