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Abstract
This work presents first experimental evidence on the effects of dynamic load cycle on PEM fuel cell system CO tolerance, a topic which to date has not been comprehensively investigated. The experiments were performed with a 1 kW fuel cell system employing components, design, and operation conditions corresponding to automotive applications. To distinguish between the load cycle and other factors affecting the CO tolerance, the experiments were repeated with static and dynamic load cycles, as well as with pure and CO contaminated fuel. The measurement data showed that dynamic load cycle improves the CO tolerance in comparison to static load with the same average current density. Moreover, the cell voltage deviation data indicated that the difference could be explained by higher electrochemical CO oxidation rate under the dynamic load cycle. These results allow us to estimate the effect of the load cycle on CO tolerance and understand its origins, thus giving valuable input for fuel quality standardization and fuel cell system development work.
Original language | English |
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Article number | 014507 |
Number of pages | 19 |
Journal | Journal of the Electrochemical Society |
Volume | 169 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2022 |
MoE publication type | A1 Journal article-refereed |
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Dive into the research topics of 'Dynamic Load Cycle Effects on PEMFC Stack CO Tolerance under Fuel Recirculation and Periodic Purge'. Together they form a unique fingerprint.Projects
- 1 Finished
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HYDRAITE: Hydrogen Delivery Risk Assessment and Impurity Tolerance Evaluation
Viitakangas, J. (Manager) & Ihonen, J. (Participant)
1/01/18 → 30/09/21
Project: EU project