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Proceedings Paper

Design and fabrication of multidirectional microbubble separator
Author(s): Shih-Wen Lee; Shwin-Chung Wong
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Paper Abstract

A micro bubble separator capable of multi-directional bubble exhaustion is designed, fabricated, and tested. The bubble separator fabricated by MEMS fabrication process includes a flat region and a microchannel region. In the flat region, there are a matrix of micro holes with hydrophobic inner surface. The microchannel region contains a set of alternating gas and liquid microchannels. Within the gas microchannels, microholes are further made. The liquid microchannels are hydrophilic, while the gas microchannels, and the micro holes therein are hydrophobic. This bubble separator was experimentally demonstrated to exhale bubbles in multiple directions successfully with fuel recycling capability. Such bubble separators are suitable to deal with the CO2 bubbles generated at the anode of a micro direct methanol fuel cell (μDMFC).

Paper Details

Date Published: 22 January 2005
PDF: 6 pages
Proc. SPIE 5718, Microfluidics, BioMEMS, and Medical Microsystems III, (22 January 2005); doi: 10.1117/12.587644
Show Author Affiliations
Shih-Wen Lee, National Tsing Hua Univ. (Taiwan)
Shwin-Chung Wong, National Tsing Hua Univ. (Taiwan)

Published in SPIE Proceedings Vol. 5718:
Microfluidics, BioMEMS, and Medical Microsystems III
Ian Papautsky; Isabelle Chartier, Editor(s)

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