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Conveying of Solid Particles in Newtonian and Non-Newtonian Carriers
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SYSNO ASEP 0330643 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Conveying of Solid Particles in Newtonian and Non-Newtonian Carriers Author(s) Vlasák, Pavel (UH-J) SAI, ORCID, RID
Chára, Zdeněk (UH-J) SAI, ORCID, RIDSource Title Particulate Science and Technology. - : Taylor & Francis - ISSN 0272-6351
Roč. 27, č. 5 (2009), s. 428-443Number of pages 16 s. Publication form on-line - on-line Language eng - English Country US - United States Keywords sand slurry ; fluidic ash slurry ; flow behavior ; experimental investigation ; ffect of slurry composition ; effect of shearing Subject RIV BK - Fluid Dynamics R&D Projects IAA200600503 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20600510 - UH-J (2005-2011) UT WOS 000269120700004 EID SCOPUS 70249103840 DOI 10.1080/02726350903130019 Annotation The paper deals with the effect of fine-grained and coarse-grained slurries composition and concentration on their flow behaviour. The fluidic fly and bottom ash slurries and sand slurries were experimentally investigated. Water and kaolin slurries were used as the carrier liquid for the sand slurries to compare the effect of Newtonian and non-Newtonian carriers. The study revealed a time-dependent yield pseudo-plastic behaviour of the fluidic fly and fly/bottom ash slurries and the possibility of substantial reduction of the flow resistance by mechanical treatment or by the adaptation of particle size distribution. The highly concentrated sand–kaolin slurries show non-Newtonian behaviour. When the carrier kaolin slurry is peptized, the hydraulic gradient in the laminar region becomes markedly lower, and the favourable effect vanishes in the transitional and turbulent regions. The addition of small amounts of kaolin favourably affects the flow behaviour of the sand slurry. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2010
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