고분자 전해질 연료전지의 Cathode 반응가스 흐름방향에 따른 성능 분석 Performance Analysis of PEMFC Depending on the Flow Direction of Reactant Gas in Cathode Gas Channel
한국기계기술학회지
(韓國機械技術學會誌)
제15권 제1호
(2013.02)
pp.97-102
pp.97-102
한국기계기술학회
(Korean Society of Mechanical Technology)
초록
A numerical analysis was performed to study PEMFC characteristics depending on the flow direction of reactant gas in cathode gas channel using the Fluent. As cathode relative humidity increases, water mass fraction increases due to back diffusion from cathode. For the both of co-flow and counter-flow cases, water mass fraction is higher near the hydrogen inlet region where the chemical reaction rate is high. In overall, counter-flow case gives higher current density compared to co-flow case for the same operating conditions. However, the difference in the current density is not high. The temperature is also higher near the hydrogen inlet region due to the chemical reaction rate for the both of co-flow and counter-flow cases.
목차
Abstract
1. 서론
2. 연구 방법
2.1 해석 모델
2.2 지배 방정식
2.3 계산 조건
3. 결과 및 토의
3.1 전해질내의 물분포 분석
3.2 I-V 성능곡선 분석
3.3 전해질내의 온도분포 분석
4. 결론
참고문헌
1. 서론
2. 연구 방법
2.1 해석 모델
2.2 지배 방정식
2.3 계산 조건
3. 결과 및 토의
3.1 전해질내의 물분포 분석
3.2 I-V 성능곡선 분석
3.3 전해질내의 온도분포 분석
4. 결론
참고문헌
저자