연료전지 금속 분리판 유로 형상 인자에 따른 가스 확산층 변형 및 협의 유로내 유동 특성 분석Numerical analysis of structural deformation of gas diffusion layers and flow characteristics in shrunk channels of fuel cell metallic bipolar plates
- Other Titles
- Numerical analysis of structural deformation of gas diffusion layers and flow characteristics in shrunk channels of fuel cell metallic bipolar plates
- Authors
- 김아름; 정혜미; 엄석기
- Issue Date
- Nov-2012
- Publisher
- 한국자동차공학회
- Keywords
- Metallic bipolar plates(금속 분리판); Gas diffusion layers (가스 확산층); Structural deformation (구조적 변형); Shrunk Channel (협의 유로); Flow characteristics (유동특성)
- Citation
- 2012년 한국자동차공학회 학술대회 및 전시회, no. , pp.2348 - 2352
- Indexed
- OTHER
- Journal Title
- 2012년 한국자동차공학회 학술대회 및 전시회
- Start Page
- 2348
- End Page
- 2352
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/164163
- Abstract
- This study is aimed to figure out the behavior of gas diffusion layer(GDL) intrusion into channels on metallic bipolar plates. First, the GDL intrusion calculation is performed with computational structural analysis. The static analysis of intrusion behavior was conducted with five cross-sectional parameters: channel to rib width ratio, draft angle, inner fillet radius, channel depth and clamping pressure. Using the information of structural deformation, computational fluid dynamics analysis is then followed to comprehend flow characteristics in the deformed channels. Numerical results are verified against experimental data in the literature. It is found that draft angle and channel ratio are the major factors of GDL compression and the GDL intrusion reduces the cross-sectional area down to 45% in the most intruded channel, leading additional pressure drop of 0.12 bar. The GDL compression induces significant degradation of PEMFC performance and the combined structural and CFD analysis can be greatly utilized to design an optimized channel dimension.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 기계공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/164163)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.