Evaluation of viscosity and thermal conductivity of graphene nanoplatelets nanofluids through a combined experimental–statistical approach using respond surface methodology method
| Autor: | Emad Sadeghinezhad, Hwai Chyuan Ong, Mohammad Mehrali, Soudeh Iranmanesh, Alireza Esmaeilzadeh, Bee Chin Ang |
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| Rok vydání: | 2016 |
| Předmět: |
Design–Expert
Materials science Central composite design Graphene 020209 energy General Chemical Engineering Relative viscosity 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics law.invention Viscosity Nanofluid Thermal conductivity law Specific surface area 0202 electrical engineering electronic engineering information engineering Composite material 0210 nano-technology |
| Zdroj: | International Communications in Heat and Mass Transfer. 79:74-80 |
| ISSN: | 0735-1933 |
| DOI: | 10.1016/j.icheatmasstransfer.2016.10.004 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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