대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)

대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

PEM 연료전지 평행류 채널에서 Baffle의 영향

Effects of baffles through the parallel flow channel in a PEM fuel cell

  • 오창묵 (고려대학교 기계공학과 대학원) ;
  • 이규정 (고려대학교 기계공학과)
  • Oh, Chang-Mook (Graduate School of Mechanical Engineering, Korea University) ;
  • Lee, Kyu-Jung (Department of Mechanical Engineering, Korea University)
  • 발행 : 2008.11.21
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The effects of baffles in PEM fuel cell with parallel flow channel has been simulated by using conmmercial program. The simulation has been conducted through the channel and there are four different heights of baffles, No Baffle($H_b$=0), Partially Blocked Baffle(0.25, 0.5, 0.75), Fully Blocked Baffle(1) conditions. The result shows that current density changes while placing a baffle at the various positions along the channel. Current density with a single baffle is higher than that without baffle and current density using Fully Blocked Baffle(FBB) is much higher than current density using Partially Blocked Baffle(PBB). When the baffle is closer to outlet of the channel, current density increases. It is found that pressure is related to current density. If the pressure is higher, the better performance will be expected.

키워드