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Investigating the rheological properties of nanofluids of water/hybrid nanostructure of spherical silica/MWCNT
Sharif University of Technology, Iran.
Research Institute of Petroleum Industry, Iran.
University of Tehran, Iran.ORCID iD: 0000-0003-2454-3870
Sharif University of Technology, Iran.
2014 (English)In: Thermochimica Acta, ISSN 0040-6031, E-ISSN 1872-762X, Vol. 578, p. 53-58Article in journal (Refereed) Published
Abstract [en]

Regarding the importance of rheological properties of water based drilling fluids, the effects of silica nanospheres, multiwall carbon nanotubes (MWCNTs) and two types of their hybrid, i.e. H1 (80 wt.% silica nanosphere/20 wt.% MWCNT) and H2 (50 wt.% silica nanosphere/50 wt.% MWCNT) on the viscosity and density of distilled water were investigated. According to the results, viscosity and density of the nanofluids increased with the concentration, while they were reduced by increasing the temperature. At high concentrations, the least increase in the viscosity of distilled water by adding the nanomaterials is related to H2 (8.2% increase at 1.0 wt.%). Likewise, the optimum operating temperature at higher concentrations was 20 C. As the results show, increase in the density of distilled water by adding the nanomaterials is insignificant, that in the worst case it did not exceed 0.9%. The least increase in the density of base fluid at high concentrations was for H1. 

Place, publisher, year, edition, pages
2014. Vol. 578, p. 53-58
Keywords [en]
Density (specific gravity); Multiwalled carbon nanotubes (MWCN); Nanostructured materials; Rheology; Viscosity; Distilled water; Hybrid nanomaterials; Nanofluids; Operating temperature; Rheological property; Silica nanospheres; Spherical silica; Water based drilling fluids; Silica
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:ri:diva-68753DOI: 10.1016/j.tca.2014.01.004Scopus ID: 2-s2.0-84893282185OAI: oai:DiVA.org:ri-68753DiVA, id: diva2:1824097
Available from: 2024-01-04 Created: 2024-01-04 Last updated: 2024-01-04Bibliographically approved

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Soleimanisalim, Amir H

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