Factors affecting the pH and electrical conductivity of MgO–ethylene glycol nanofluids

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dc.contributor.author Adio, Saheed Adewale
dc.contributor.author Sharifpur, Mohsen
dc.contributor.author Meyer, Josua P.
dc.date.accessioned 2016-01-25T10:19:21Z
dc.date.available 2016-01-25T10:19:21Z
dc.date.issued 2015-09
dc.description.abstract The pH and electrical conductivity are important properties of nanofluids that have not been widely studied, especially with regard to temperature and ultrasonication energy. To study the factors that affect the pH and electrical conductivity of magnesium oxide–ethylene glycol (MgO–EG) nanofluid, the effects of temperature, volume fraction, particle size and ultrasonication energy were investigated. Two different sizes of MgO were dispersed in EG base fluid up to the volume fraction of 3%, and the pH and electrical conductivity were monitored between the temperatures of 20 and 70°C. Characterization by transmission electron microscopy and size analyses revealed the morphology and sizes of the nanoparticle samples. The pH values dropped consistently with the increase of temperature, while electrical conductivity value increased with the increase of temperature. The experimental result showed that the increase in the MgO volume fraction increased both the pH and electrical conductivity values of the MgO–EG nanofluid. There was no recognizable influence of ultrasonication energy density on the pH and electrical conductivity of the nanofluid; therefore, it was concluded that temperature, volume fraction and particle size are the predominant factors affecting both the pH and electrical conductivity of MgO–EG nanofluid within the present experimental conditions. en_ZA
dc.description.librarian am2015 en_ZA
dc.identifier.citation Adio, SA, Sahrifpur, M & Meyer, JP 2015, 'Factors affecting the pH and electrical conductivity of MgO-ethylene glycol nanofluids', Bulletin of Materials Science, vol. 38, no. 5, pp. 1345-1357. en_ZA
dc.identifier.issn 0250-4707 (print)
dc.identifier.issn 0973-7669 (online)
dc.identifier.uri http://hdl.handle.net/2263/51242
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 pH en_ZA
dc.subject Electrical conductivity en_ZA
dc.subject Volume fraction en_ZA
dc.subject Ultrasonication en_ZA
dc.subject Magnesium oxide–ethylene glycol (MgO–EG) en_ZA
dc.title Factors affecting the pH and electrical conductivity of MgO–ethylene glycol nanofluids en_ZA
dc.type Article en_ZA


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