Simulation study on magnetic field distribution of PEMFC |
| |
| Affiliation: | 1. Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, China;2. Institute of Advanced Technology, University of Science and Technology of China, Hefei, China;3. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, China |
| |
| Abstract: | As a promising next-generation energy source, proton exchange membrane fuel cell (PEMFC) still suffers from durability and reliability issues, where PEMFC performance will decay during its operation. In this study, a three-dimensional, multi-component and multi-physics PEMFC model is developed to investigate the effect of PEMFC performance degradation on its external magnetic field. By comparing simulation results and experimental data, the capability of the developed model in simulating magnetic field due to PEMFC current is demonstrated. With developed model, different PEMFC degradation mechanisms, including flooding, dehydration, PEMFC aging are simulated, and the amplitudes and distributions of magnetic field under different mechanisms are investigated. Moreover, considering local defects may happen in practical PEMFC systems, its influence on magnetic field distribution is also studied. From the results, the correlation between PEMFC performance degradation and its magnetic field distribution is clarified, which will be beneficial for researches utilizing PEMFC magnetic field for analyzing PEMFC performance variation. |
| |
| Keywords: | Proton exchange membrane fuel cell Model simulation Performance degradation Magnetic field |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
