Experimental investigations into viscosity, pH and electrical conductivity of nanofluid prepared from palm kernel fibre and a mixture of water and ethylene glycol

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dc.contributor.author Awua, Justin T.
dc.contributor.author Ibrahim, Jacob
dc.contributor.author Adio, Saheed A.
dc.contributor.author Mehrabi, Mehdi
dc.contributor.author Sharifpur, Mohsen
dc.contributor.author Meyer, Josua P.
dc.date.accessioned 2019-05-27T15:06:40Z
dc.date.available 2019-05-27T15:06:40Z
dc.date.issued 2018-12-05
dc.description.abstract Extensive research has been carried out on the synthesis and applications of nanofluid produced from metals, nonmetals and their oxides. However, little or no attention has been paid to bio-based nanoparticles. The need for the use of bio-based nanoparticles and bio-based nanofluids is imperative to mitigate over-dependence on toxic synthetic nanoparticles. This idea is also in line with renewable and sustainable developmental goals.Moreover, bio-based materials like palm kernel fibre (PKF) constitute environmental waste in some quarters and its conversion to useful products for engineering application will take a long time in solving environmental issues and health hazards. In this study, the top-down approach was used to synthesize nanoparticles from PKF using a ball-milling machine. The PKF nanoparticles with an average size of ∼40 nm were dispersed in an ethylene glycol (EG)/water (50:50) base fluid up to 0.5% of the volume fraction. The viscosity, pH and electrical conductivity of PKF–water and EG (50:50) were studied for temperature ranging from 10 to 60◦C. The results showed that the viscosity of the PKF-based nanofluid increases with an increase in volume fraction and decreases exponentially with an increase in the working temperature of the nanofluid. The pH and the electrical conductivity increased as the volume fraction of the PKF nanoparticle was increased from 0.1 to 0.5%. However, the pH decreased with an increase in the temperature while the electrical conductivity increased with an increase in the volume fraction. Since the notable theoretical models in the literature were unable to estimate the viscosity of the PKF–EG/water nanofluid, in the present case an empirical correlation based on dimensional analysis was proposed to estimate the viscosity of the PKF–EG/water nanofluids. en_ZA
dc.description.department Mechanical and Aeronautical Engineering en_ZA
dc.description.librarian am2019 en_ZA
dc.description.uri http://www.ias.ac.in/matersci/index.html en_ZA
dc.description.uri http://link.springer.com/journal/12034 en_ZA
dc.identifier.citation Awua, J.T., Ibrahim, J.S., Adio, S.A. et al. 2018, 'Experimental investigations into viscosity, pH and electrical conductivity of nanofluid prepared from palm kernel fibre and a mixture of water and ethylene glycol', Bulletin of Materials Science, vol. 41, art. no. 156, pp. 1-7. en_ZA
dc.identifier.issn 0250-4707 (print)
dc.identifier.issn 0973-7669 (online)
dc.identifier.other 10.1007/s12034-018-1676-1
dc.identifier.uri http://hdl.handle.net/2263/69214
dc.language.iso en en_ZA
dc.publisher Indian Academy of Sciences en_ZA
dc.rights © Indian Academy of Sciences en_ZA
dc.subject Nanofluid en_ZA
dc.subject Viscosity en_ZA
dc.subject Ethylene glycol en_ZA
dc.subject pH en_ZA
dc.subject Electrical conductivity en_ZA
dc.subject Palm kernel fibre (PKF) en_ZA
dc.title Experimental investigations into viscosity, pH and electrical conductivity of nanofluid prepared from palm kernel fibre and a mixture of water and ethylene glycol en_ZA
dc.type Article en_ZA


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