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Investigation of thermal conductivity of multi walled carbon nanotube dispersed in hydrogenated oil based drilling fluids

Chai, Y.H. and Yusup, S. and Chok, V.S. and Arpin, M.T. and Irawan, S. (2016) Investigation of thermal conductivity of multi walled carbon nanotube dispersed in hydrogenated oil based drilling fluids. Applied Thermal Engineering, 107 . pp. 1019-1025.

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

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. © 2016 Elsevier Ltd

Item Type:Article
Impact Factor:cited By 18
Uncontrolled Keywords:Carbon nanotubes; Cavitation; Chemical analysis; Dispersions; Drilling fluids; Fluid dynamics; Hydrodynamics; Hydrogenation; Nanotubes; Thermal conductivity; Thermal conductivity of liquids; Yarn, Conductivity properties; FTIR analysis; Hydrodynamic cavitations; Hydrogenated oil; Model yields; Thermal conductivity model; Two step method; Ultra-sonication, Multiwalled carbon nanotubes (MWCN)
ID Code:25662
Deposited By: Ms Sharifah Fahimah Saiyed Yeop
Deposited On:27 Aug 2021 09:38
Last Modified:27 Aug 2021 09:38

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