Experimental Evidence of Apparent Wall Slip Effect on Viscometers of Different Surface Quality
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F10%3A86076460" target="_blank" >RIV/61989100:27360/10:86076460 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Experimental Evidence of Apparent Wall Slip Effect on Viscometers of Different Surface Quality
Popis výsledku v původním jazyce
Aqueous polymer solutions commonly display both non-Newtonian bulk rheological behavior and apparent slip at liquid-solid interfaces (AWS effect). The AWS effect becomes important when transport characteristics are experimentally determined in measuringinstruments with small hydraulic radii, e.g. in extremely narrow channels, commonly encountered also in micro-reactors, membrane and similar processes. The AWS effect is an interfacial phenomenological property and, hence, it can depend on the bulk material of the confining walls and on the surface finishing, as well. The proposed paper is focused on experimental viscometric study of AWS effect of aqueous polymer solutions: 1.5% wt solution of Na salt of Carboxymethylcellulose, 0.4%wt of Welan Gum and 1% wt of Polyacrylamide was chosen as the tested liquids. Four viscometric sensors (type KK) with different quality of surface (Stainless steel,Titanium, Alloy of Al and Mg,as well as Stainless steel with surface roughened by sandblasting)
Název v anglickém jazyce
Experimental Evidence of Apparent Wall Slip Effect on Viscometers of Different Surface Quality
Popis výsledku anglicky
Aqueous polymer solutions commonly display both non-Newtonian bulk rheological behavior and apparent slip at liquid-solid interfaces (AWS effect). The AWS effect becomes important when transport characteristics are experimentally determined in measuringinstruments with small hydraulic radii, e.g. in extremely narrow channels, commonly encountered also in micro-reactors, membrane and similar processes. The AWS effect is an interfacial phenomenological property and, hence, it can depend on the bulk material of the confining walls and on the surface finishing, as well. The proposed paper is focused on experimental viscometric study of AWS effect of aqueous polymer solutions: 1.5% wt solution of Na salt of Carboxymethylcellulose, 0.4%wt of Welan Gum and 1% wt of Polyacrylamide was chosen as the tested liquids. Four viscometric sensors (type KK) with different quality of surface (Stainless steel,Titanium, Alloy of Al and Mg,as well as Stainless steel with surface roughened by sandblasting)
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
CI - Průmyslová chemie a chemické inženýrství
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GA104%2F09%2F0972" target="_blank" >GA104/09/0972: Přístěnné efekty při toku mikrodisperzních kapalin: zdánlivý skluz a elektrokinetický potenciál</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2010
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů