| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.429 |
| 발표분야 |
에너지 |
| 제목 |
Numerical Modeling of Performance and Degradation Rate for Membrane Electrode Assemblies in High Temperature PEM Fuel Cells |
| 초록 |
The numerical model of degradation rate in high temperature proton exchange membrane fuel cell (HT-PEMFC) using phosphoric acid (PA) doped polybenzimidazole (PBI) membrane are developed. The model accounts for degradation factors in terms of activation, ohmic, and concentration over-potentials and subsequent degradation of performance for high temperature membrane electrode assemblies (MEAs). In addition, the model considers operating temperature effects on degradation rate for MEAs in HT-PEMFC since the degradation rate for MEAs are highly different according to their operating temperature normally between 150℃ and 190℃. The developed model is validated with HT-PEMFC degradation data after long-term operations reported in the literature. Numerical simulations are carried out to investigate the effects of operating temperature on HT-PEMFC performance degradation. The numerical results indicate that the effect of operating temperature on HT-PEMFC durability is significant and thus expected lifetime and average performance for high temperature MEAs are changeable due to the determined operating temperature. |
| 저자 |
김민진, 강태곤, 손영준
|
| 소속 |
한국에너지기술(연) |
| 키워드 |
high temperature PEM; lifetime estimation; degradation modeling
|
| E-Mail |
|
| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
