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- Title
Research on new flow channel design for improving water management ability of proton exchange membrane fuel cell.
- Authors
Li, Tianya; Song, Jing hui; Ke, Zhou; Lin, Guangyi; Qu, Guangkai; Song, Yingjie
- Abstract
In order to improve the performance of the proton exchange membrane fuel cell (PEMFC), the simulation experiments are carried out on the traditional straight channel, the cathode variable cross-section flow channel and the inclined cross-section flow channel model, respectively, and the calculation models of the three fuel cells are established at the same time. When the PEMFC humidity is 100%, the cathode variable-section flow channel has best drainage capacity. In terms of power density, the cathode variable cross-section flow channel is 3% higher than the cathode inclined cross-section flow channel. The difference between the three structures is small at medium current density and low current density, and the voltage loss of the cathode-to-interface flow channel is smallest at high current density. When the humidity of the PEMFC is 60%, the performance of the cathode variable cross-section flow channel and inclined cross-section flow channel are better than that of traditional direct flow channel. The power density of the cathode variable cross-section flow channel is 7.1% higher than that of the traditional direct flow channel. The power density of the cathode inclined cross-section flow channel is 4.2% higher than that of the traditional straight channel. The water management capability of the PEMFC can be significantly improved through the design of the flow channel.
- Subjects
PROTON exchange membrane fuel cells; CHANNEL flow; WATER management
- Publication
Journal of Materials Science, 2022, Vol 57, Issue 12, p6669
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-022-07061-7