A visualization study of venting gas via hydrophobic nanoporous membrane

Jin Cherng Shyu*, Sin Min Dai, Kai Shing Yang, Chi-Chuan Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study examines the venting gas characteristics in a microchannel through a hydrophobic nanoporous membrane with a pore size of 0.22 μm and a porosity of 70%. A total of three microchannels were made and tested, including a serpentine, a parallel and a contraction-expansion configuration. The mass flux (G) is 5, 7.5 and 10 kg/m 2 s with the quality (x) ranging from 0 to 0.1. Flow visualization is also performed to observe the bubbles movement under different experimental conditions. The tested results show that the amount of venting gas is strongly related to the contact time and configuration of gas slug and the development of flow pattern in the channel.

Original languageEnglish
Title of host publication2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012
Pages640-643
Number of pages4
DOIs
StatePublished - 1 Jun 2012
Event7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012 - Kyoto, Japan
Duration: 5 Mar 20128 Mar 2012

Publication series

Name2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012

Conference

Conference7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012
CountryJapan
CityKyoto
Period5/03/128/03/12

Keywords

  • hydrophobic
  • microchannel
  • nanoporous membrane
  • two phase flow
  • venting gas

Fingerprint Dive into the research topics of 'A visualization study of venting gas via hydrophobic nanoporous membrane'. Together they form a unique fingerprint.

  • Cite this

    Shyu, J. C., Dai, S. M., Yang, K. S., & Wang, C-C. (2012). A visualization study of venting gas via hydrophobic nanoporous membrane. In 2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012 (pp. 640-643). [6196857] (2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012). https://doi.org/10.1109/NEMS.2012.6196857