0
Article

Mathematical Model of a Direct Methanol Fuel Cell

[+] Author and Article Information
Brenda L. García, Vijay A. Sethuraman, John W. Weidner, Ralph E. White

 Center for Electrochemical Engineering, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208

Roger Dougal

 Department of Electrical Engineering, University of South Carolina, Columbia, SC 29208

J. Fuel Cell Sci. Technol 1(1), 43-48 (Jun 15, 2004) (6 pages) doi:10.1115/1.1782927 History: Received April 16, 2004; Revised June 15, 2004

A one-dimensional, isothermal model for a direct methanol fuel cell (DMFC) is presented. This model accounts for the kinetics of the multi-step methanol oxidation reaction at the anode. Diffusion and crossover of methanol are modeled and the mixed potential of the oxygen cathode due to methanol crossover is included. Kinetic and diffusional parameters are estimated by comparing the model to data from a 25cm2 DMFC. This semi-analytical model can be solved rapidly so that it is suitable for inclusion in real-time system level DMFC simulations.

FIGURES IN THIS ARTICLE
<>
Copyright © 2004 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Schematic of a DMFC

Grahic Jump Location
Figure 2

Reaction pathways of methanol oxidation (5)

Grahic Jump Location
Figure 3

Schematic of the DMFC layers considered in the model

Grahic Jump Location
Figure 4

Model predictions for different methanol concentrations

Grahic Jump Location
Figure 5

Concentrations profiles for different methanol bulk concentrations

Grahic Jump Location
Figure 6

Methanol crossover for different methanol bulk concentrations

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In