Abstract
The performance of a gas diffusion layer comprised of a macro porous and micro porous layer has been studied both experimentally and by numerical simulation. Experimental data at different humidification conditions have been compared to full cell, three-dimensional computational fluid dynamics calculations to validate the physical model of the cell. Local distributions of current density, electrochemical variables, temperature, and gas composition are discussed in detail. Model calculations agree well with experimental data and the solutions with and without the micro porous layer show that this layer has an effect on the overall performance and the local distributions show differences. The effect of hydrogen dilution is also explored in this paper with micro/macro gas diffusion media. The results reveal that proton exchange membrane fuel cell (PEMFC) performance depends not only on the oxygen but also on the hydrogen partial pressure.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
