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사다리꼴 PEMFC 직선형 가스채널 내의 벽면 접촉각이 물 덩어리의 거동에 미치는 영향 Effect of Gas Channel Wall Contact Angle on a Liquid Water Slug Dynamics in a Straight Gas Channel of a Trapezoidal PEMFC

김진현, 김우태
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한국기계기술학회지 (韓國機械技術學會誌)
제19권 제5호 (2017.10)
pp.620-625
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

The volume of fluid method is used to investigate the behavior of a liquid water slug in a PEMFC trapezoidal gas channel(GC) with a open angle of 60 degrees. To evaluate the effect of the contact angle of the top and side walls, the gas diffusion layer water coverage ratio(GWCR) and water volume fraction(WVF) in a inspection control volume are analyzed. As the contact angle increases, GWCR increases and WVF decreases. The cases with the GC contact angle of 60 and 80 degrees show the more favorable water removal characteristics compared to the other cases in a GC flooding condition.

키워드
PEMFC고분자 전해질 연료전지Water management물 관리Gas channel가스 채널Contact angle접촉각Channel flooding채널 홍수
저자
  • 김진현(Kongju National University, Department of Mechanical Engineering) | Jin Hyun Kim
  • 김우태(Member, Kongju National University, Department of Mechanical and Automotive Engineering) | Woo Tae Kim Corresponding author