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- Tepper, Maik, et al. Show all 7 Authors
- Journal of membrane science 2019 v.585 pp. 115-125
- air; asymmetric membranes; drying; geometry; membrane permeability; mixing; nanofiltration; reverse osmosis
- ... Composite membranes are highly permeable and used with great success in nanofiltration, reverse osmosis and gas separation. However, the higher the membrane permeability gets, the more pronounced becomes the role of the laminar boundary layer. Common approaches to overcome boundary layer limitation include the use of spacers or inserts, which induce secondary mixing. In contrast, we use composite ...
- Tepper, Maik, et al. Show all 4 Authors
- Journal of membrane science 2017 v.533 pp. 302-308
- absorption; fouling; heat; hydrophobicity; liquid membranes; mass transfer; methodology; oxygen; physiological transport; spinning
- ... Geometrically structured flow channels induce secondary flows and vortices enhancing mass and heat transport rates. In particular, these vortices may reduce concentration polarization and subsequent fouling in membrane transport processes. In this work we present a new method of producing hollow fiber membranes with a sinusoidal change in diameter along the fiber length. We engineered a pulsation ...