A three dimensional numerical analysis was performed to study the effect of cathode inlet relative humidity on PEMFC performance characteristics. As cathode inlet relative humidity increases from 0 percent to 60 percent, the current density increases. Then, as cathode inlet relative humidity increases from 60 percent to 100 percent, the current density decreases. The two dimensional contour map analysis shows that the flooding phenomenon in cathode gas channel, gas diffusion layer, and catalyst layer leads to the decrease of current density.
목차
Abstract 1. 서론 2. 연구 방법 2.1 수치해석 모델 2.2 계산 조건 3. 결과 고찰 및 분석 3.1 Cathode 입구상대습도의 변화 4. 결론 후기 References
키워드
PEMFC(고분자 전해질 연료전지)Porosity(기공률)Relative humidity(상대습도) Water content(함수율)