Abstract
The mass transfer enhanced cathode flow field with little pressure loss is a key factor to proton exchange membrane fuel cell (PEMFC) design. A new type of cathode flow field incorporating ship-shaped baffles which enhances mass transfer while causes little parasitic power is proposed in this study. Effects of length, breadth, molded depth, liquid level height and draft depth of the ship-like baffle on water removal in flow field and PEMFC performance are investigated numerically. Results show that ship-like baffles could accelerate water removal. Slim baffle with big surface helps to break droplets into smaller ones. Ship-like baffles also help to pushed reactant downward and distributed reactant evenly, especially in area under ribs. Sloping “bow” of baffle helps to enhance mass transfer downward and sloping “stern” of baffle helps to further split the droplets already divided by baffles into smaller ones and throw them into the upper part of the channel. In general, the proposed flow field with ship-like baffles shows a good performance in PEMFC mass transfer.
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.
