Investigation of thermal conductivity of multi walled carbon nanotube dispersed in hydrogenated oil based drilling fluids
| Autor: | Suzana Yusup, Mohamad Taufiq Arpin, Yee Ho Chai, Sonny Irawan, Vui Soon Chok |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
020209 energy Sonication Energy Engineering and Power Technology 02 engineering and technology Carbon nanotube 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering law.invention Thermal conductivity Nanofluid Chemical engineering law Cavitation Drilling fluid 0202 electrical engineering electronic engineering information engineering Fourier transform infrared spectroscopy 0210 nano-technology Dispersion (chemistry) |
| Zdroj: | Applied Thermal Engineering. 107:1019-1025 |
| ISSN: | 1359-4311 |
| DOI: | 10.1016/j.applthermaleng.2016.07.017 |
| Popis: | Thermal conductivity properties of non-polar hydrogenated based-oil dispersed with multi-walled carbon nanotubes (MWCNT) are investigated. The dispersion of MWCNT are carried out via two-step methods that utilizes the combination of hydrodynamic cavitation and ultrasonication dispersion at weight concentration of 25 ppm, 50 ppm and 100 ppm respectively. MWCNT structure and chemical compound was analyzed using TEM imaging and FTIR analysis. The thermal conductivity of MWCNT-hydrogenated oil shows 9.8% enhancement at 100 ppm concentration as compared to 7.2% and 4.5% enhancement at 50 ppm and 25 ppm respectively. Various conventional thermal conductivity models were compared with experimental data obtained, of which Nan et al. model yields the closest result approximations at 25 ppm while other models underpredicted the thermal conductivity of MWCNT-hydrogenated oil nanofluid. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect