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Stability and Rheology of Dilute Nanofluids
- 1.0345258 - ÚCHP 2011 SK eng C - Conference Paper (international conference)
Pěnkavová, Věra - Tihon, Jaroslav - Wein, Ondřej
Stability and Rheology of Dilute Nanofluids.
Proceedings. Bratislava: Slovak University of Technology, 2010 - (Markoš, J.), s. 277. ISBN 978-80-227-3290-1.
[International Conference of Slovak Society of Chemical Engineering /37./. Tatranské Matliare (SK), 24.05.2010-28.05.2010]
R&D Projects: GA ČR GA104/08/0428; GA ČR GA104/09/0972
Institutional research plan: CEZ:AV0Z40720504
Keywords : nanofluids * zeta potential * fluidity
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Rheology of dilute nanofluids, prepared by dispersing various TiO2 nanopulvers (rutile or anatase) in aqueous acidobasic buffers, is studied using the AWS (apparent wall slip) rotational viscometry. Maximum content of dispersion phase in stable (non-settling) systems is controlled by pH (zeta-potential). All the prepared stable dispersions are rather dilute (solid content below 2.5 wt%) and embody Newtonian flow behavior with no AWS effects in narrow channels with hydraulic radii on order of 0.1mm.
Permanent Link: http://hdl.handle.net/11104/0186574
Number of the records: 1