Micro-patterned interfaces affecting transport through and along membranes

Peters, A.M.

doi:10.3990/1.9789036527583

Cited by 1 publication

(2 citation statements)

References 8 publications

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“…The measured contact angles for these PVDF membranes are higher than previous work from Peters (2008), which is due to the difference in membrane structure.…”

Section: Characterization Of the Porous Membranecontrasting

confidence: 51%

“…Compared to Peters (2008), the shrinkage values are found to be somewhat lower and pores have a more open structure. Since all conditions were kept the same except for the coagulation bath (in this work pure ethanol is used instead of 50:50 wt% water:NMP), the differences in the membrane structure are attributed to the phase-separation step.…”

Section: Characterization Of the Porous Membranementioning

confidence: 96%

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A microgrooved membrane based gas–liquid contactor

Jani

Weßling

Lammertink

2012

Microfluid Nanofluid

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This research presents an approach for applying microgrooved membranes for improved gas-liquid contacting. The study involves analysis of the performance of the microdevice by quantifying the flux enhancement for different membrane configurations. Two kinds of configurations, continuous and non-continuous grooves, were investigated. The microgrooves provide shear-free gasliquid interfaces, which result in local slip velocity at the gas-liquid interface. Exploiting this physical phenomenon, it is possible to reduce mass transport limitations in gasliquid contacting. An experimental study using grooved membranes suggests enhancement in flux up to 20-30 %. The flux enhancement at higher liquid flow rates is observed due to a partial shear-free gas-liquid interface. The performance of the membrane devices decreased with wetted microgrooves due to the mass transport limitations. The flow visualization experiments reveal wetting of the microgrooves at higher liquid flow rates. According to the numerical and experimental study, we have shown that microgrooved membranes can be employed to improve gas-liquid contacting processes.

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“…The measured contact angles for these PVDF membranes are higher than previous work from Peters (2008), which is due to the difference in membrane structure.…”

Section: Characterization Of the Porous Membranecontrasting

confidence: 51%

Section: Characterization Of the Porous Membranementioning

confidence: 96%