Journal
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
Volume 79, Issue -, Pages 74-80Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.icheatmasstransfer.2016.10.004
Keywords
Nanofluid; Graphene nanoplatelets; Thermal conductivity; Viscosity; Respond surface methodology
Categories
Funding
- High Impact Research Grant (HIRG) [UM.C/HIR/MOHE/ENG/40]
- [PG068-2015B]
- [PR034C-15AET]
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In the present study, three influential parameters including concentration, temperature and specific surface area of graphene nanosheets were investigated, which are the effective parameters on the viscosity and thermal conductivity of aqueous graphene nanosheets (GNP) nanofluids. A mathematical model developed by respond surface methodology (RSM) based on a central composite design (CCD). Also, the significance of the models was tested using the analysis of variance (ANOVA). The optimum results of aqueous GNP nanofluid showed that the concentration has a direct effect on the relative viscosity and thermal conductivity. Furthermore, predicted responses proposed by the Design Expert software were compared with the experimental results. The statistical analysis of the predicted values was in satisfactory agreement with the empirical data. (C) 2016 Elsevier Ltd. All rights reserved.
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