Mathematical Model of a Direct Methanol Fuel Cell

Abstract

A one dimensional (1-D), 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 25 cm2 DMFC. This semi-analytical model can be solved rapidly so that it is suitable for inclusion in real-time system level DMFC simulations.

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Document Details

Document Type
Technical Report
Publication Date
May 26, 2004
Accession Number
ADA446895

Entities

People

  • Brenda L Garcia
  • John W. Weidner
  • Ralph E. White
  • Roger A. Dougal
  • Vijayanand Sethuraman

Organizations

  • University of South Carolina

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alcohol Fuels
  • Alcohols
  • Boltzmann Equation
  • Cells
  • Computational Fluid Dynamics
  • Current Density
  • Diffusion Coefficient
  • Direct Methanol Fuel Cells
  • Engineering
  • Equations
  • Fuel Cells
  • Fuels
  • Mass Transfer
  • Mathematical Models
  • Methanols
  • Models
  • Rate Of Consumption

Readers

  • Computational Fluid Dynamics (CFD)
  • Electrochemical Surface Science
  • Petroleum Engineering

Technology Areas

  • Biotechnology