Breakthrough/drainage pressures and X-ray water visualization in gas diffusion layer of PEMFC
SCIE
SCOPUS
KCI
- Title
- Breakthrough/drainage pressures and X-ray water visualization in gas diffusion layer of PEMFC
- Authors
- Jongrok Kim; Junho Je; TaeJoo Kim; Massoud Kaviany; Sang Young Son; Kim, M
- Date Issued
- 2012-01
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- The primary role of the gas diffusion layers (GDLs) in polymer electrolyte membrane fuel cells (PEMFC) is to maintain the delicate balance between water retention and removal in GDLs. Water management in the fuel cell is related to the breakthrough pressure at which water starts to pass through GDL, and the drainage pressure, which is maintained after the breakthrough. These pressures are both related to water management in fuel cells. Here we measured these pressures for two different GDLs and used X-ray tomography to visualize the water distributions within them. We then relate the variations in liquid pressures to the visualization and discuss water management in PEMFC. (C) 2011 Elsevier B.V. All rights reserved.
- Keywords
- Break-through pressure; Drainage pressure; Gas diffusion layers; Polymer electrolyte membrane fuel cell; X-ray tomography; MEMBRANE FUEL-CELLS; 2-PHASE FLOW; TRANSPORT; POROSITY; CATHODE; MODEL
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/16716
- DOI
- 10.1016/J.CAP.2011.05.016
- ISSN
- 1567-1739
- Article Type
- Article
- Citation
- CURRENT APPLIED PHYSICS, vol. 12, no. 1, page. 105 - 108, 2012-01
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.