The design and usage of a visual direct methanol fuel cell

Joakim Nordlund, Cyril Picard, Erik Birgersson, Michael Vynnycky, Göran Lindbergh

Research output: Contribution to journalArticlepeer-review

Abstract

In order to better understand the influence of gas evolution on the performance of the direct methanol fuel cell (DMFC) anode, a visual DMFC, comprising of a transparent anode and a cathode endplate with an integrated heat exchanger, and a picture analysis methodology were developed. The result was an inexpensive, but very powerful, tool for analyzing the role of two-phase flow. An important finding is that gas bubbles do not appear uniformly throughout the fluid flow matrix, but rather only at a few active sites. Another important finding is that the gas saturation (volume fraction of gas/volume fraction of liquid) increases along the streamwise direction.

Original languageEnglish
Pages (from-to)763-770
Number of pages8
JournalJournal of Applied Electrochemistry
Volume34
Issue number8
DOIs
Publication statusPublished - Aug 2004
Externally publishedYes

Keywords

  • Direct methanol fuel cell anode
  • Gas evolution
  • Porous medium
  • Two-phase flow
  • Visualization

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