Abstract
Enhancing the transverse velocity to the catalyst layer and exploiting the over-rib flow are two common methods of improving proton exchange membrane fuel cells (PEMFCs). The block flow field configuration significantly affects the augmentation of the transverse velocity to the catalyst layer, whereas the trap configuration significantly increases the molar concentration of O2 at the cathode catalyst layer without a pressure drop penalty. In this study, four-channel PEMFC models with different configurations were used, including the baseline and staggered-trap, -block, and -trap/block channels. The novel flow field with a combination of trap/block configurations exhibits a higher power output than those of the other designs. Furthermore, the novel staggered-trap/block channel induces a higher over-rib flow velocity than that of the baseline channel, leading to more uniform O2 and temperature distributions within the PEMFC. The optimal trap/block design increases the maximum net cell power by 8.04 % at V = 0.5 V.
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.
