고분자 전해질 연료전지 사다리꼴 단면 가스채널 내에서의 물 배출 특성에 대한 수치해석
Numerical Analysis of Liquid Water Removal Characteristics in a PEMFC Gas Channel with Trapezoidal Cross-section
The water removal characteristics in a PEMFC trapezoidal gas channel are investigated with the volume of fluid (VOF) method. For the case of wall contact angle of 60 degree, liquid water attaches on the top wall and moves toward the exit. In contrast, liquid water moves along the channel side corner or GDL surface irregularly for the higher wall contact angles. The hydrophillic wall contact angle of 60 degrees provides more favorable diffusion of reactants to cathode reaction sites as the GDL surface water coverage ratio approaches zero even if the water flow rate increases.
목차
ABSTRACT 1. 서론 2. 연구 방법 2.1 수치해석 모델 2.2 계산 조건 3. 결과 및 토의 4. 결론 후기 References
키워드
PEMFC(고분자 전해질 연료전지)Water management(물관리)
저자
고영진 [ Young-Jin Ko | Kongju National University, Department of Mechanical Engineering ]
김우태 [ Woo-Tae Kim | Member, Kongju National University, Department of Mechanical & Automotive Engineering ]
Corresponding author