Abstract
The transient response of a proton exchange membrane fuel cell (PEMFC) is an important issue for transportation applications. The objective of this study is to investigate the effects of operating and controlling parameters on the transient response of a PEMFC for achieving more stable cell performance under load change conditions. The transient response of a PEMFC was measured and analyzed by varying air stoichiometry, air humidity, and air excess ratio (AER). The optimal air stoichiometry and AER were determined to minimize the voltage drop, undershoot, and voltage fluctuation under the load change, while maintaining high cell performance. Based on the present data, the optimal air stoichiometry was determined to be between 2.0 and 2.5, and the optimal AER was suggested to be between 1.65 and 2.0.
| Original language | English |
|---|---|
| Pages (from-to) | 143-149 |
| Number of pages | 7 |
| Journal | Applied Energy |
| Volume | 138 |
| DOIs | |
| Publication status | Published - 2015 Jan 5 |
Keywords
- Air excess ratio
- Air stoichiometry
- Proton exchange membrane fuel cell
- Self-humidification
- Transient response
ASJC Scopus subject areas
- Building and Construction
- Mechanical Engineering
- Energy(all)
- Management, Monitoring, Policy and Law