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Effect of channel-rib width ratio and relative humidity on performance of a single serpentine PEMFC based on electrochemical impedance spectroscopy.
- Source :
-
International Journal of Hydrogen Energy . Mar2022, Vol. 47 Issue 26, p13076-13086. 11p. - Publication Year :
- 2022
-
Abstract
- The geometry configuration of proton exchange membrane fuel cell (PEMFC) which is considered as a promising energy conversion device has great influence on PEMFC performance. In this paper, effect of channel-to-rib width ratio and relative humidity of reactant gas on the performance are compared based on two single PEMFCs. The EIS testing results below 50 A are given and analyzed. The results obtained from polarization curves, power density curves and EIS fitting results prove that: 1. Compared with cell 3:4, the anode high humidification has a greater addition to the performance of cell 1:1; 2. PEMFCs with different geometry configurations of flow field have their own suitable working condition ranges; 3. The charge transfer resistance is the dominating factor when current loading is below 2.0 A cm−2. • The performance of two single PEMFCs was evaluated and compared. • EIS fitting results are analyzed with equivalent circuit. • Geometric configuration plays different role under different loading amplitudes. • Charge transfer resistance dominates performance when loading is under 2 A cm−2. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03603199
- Volume :
- 47
- Issue :
- 26
- Database :
- Academic Search Index
- Journal :
- International Journal of Hydrogen Energy
- Publication Type :
- Academic Journal
- Accession number :
- 155845824
- Full Text :
- https://doi.org/10.1016/j.ijhydene.2022.02.047