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Wall Shear Stress at the Membrane Surface and at the Surface of Plexiglass

Autoři: Velikovská Pavlína | Mikulášek Petr | Legentilhomme P. | Comiti J. | Jaouen P.

Rok: 2003

Druh publikace: článek v odborném periodiku

Název zdroje: Scientific Papers of the University of Pardubice, Series A, Faculty of Chemical Technology

Název nakladatele: Univerzita Pardubice

Místo vydání: Pardubice

Strana od-do: 197-210

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Wall Shear Stress at the Membrane Surface and at the Surface of Plexiglass	The wall shear stress is determined at the surface of a plane ceramic ultrafiltration membrane in a tangential ultrafiltration module. In a first time, the shear stresses are determined at the surface of a plate of Plexiglas mimicking a membrane and at the plane membrane surface without fouling particles with the aim to investigate the influence of permeation. In a second time, the wall shear stress is determined at the surface of the plane membrane during the ultrafiltration of a suspension of spherical no compressible particles inducing a deposit at the membrane surface. The values of the mean wall shear stress and its fluctuations (turbulent intensity rate) were measured by using an electrochemical method.	ultrafiltrační modul;elektrochemická metoda;střihové napětí na stěně
eng	Wall Shear Stress at the Membrane Surface and at the Surface of Plexiglass	The wall shear stress is determined at the surface of a plane ceramic ultrafiltration membrane in a tangential ultrafiltration module. In a first time, the shear stresses are determined at the surface of a plate of Plexiglas mimicking a membrane and at the plane membrane surface without fouling particles with the aim to investigate the influence of permeation. In a second time, the wall shear stress is determined at the surface of the plane membrane during the ultrafiltration of a suspension of spherical no compressible particles inducing a deposit at the membrane surface. The values of the mean wall shear stress and its fluctuations (turbulent intensity rate) were measured by using an electrochemical method.	ultrafiltration module;electrochemical method;wall shear stress

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