Abstract
In this study, a mathematical model of the passive direct methanol fuel cell (DMFC) has been developed. This model considers the methanol and oxygen mass transport phenomena along with the electrochemical reactions. The model is validated with the experimental data. The model is used to predict the effect of methanol concentration on cell performance, variation of methanol crossover (MCO) with current density and methanol feed concentration, methanol and oxygen concentration profiles across the cell and the overpotentials. It was found that the MCO can be reduced by running the cell with low methanol concentration and at high current densities. Anode overpotential, compared to cathode overpotential, is found to be more responsible for the limiting current density. The outcome of the research will be useful for improving understanding of the transport phenomena in the passive DMFC and to optimise the cell design.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Energy Technology and Policy
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
