Performance and flow characteristics of large-sized PEM fuel cell having branch channel
- Authors
- Han, Seong Ho; Choi, Nam Huen; Choi, Young Don
- Issue Date
- 20-4월-2015
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- PEMFC; Flooding; Stoichiometry; Dimensionless number; Mass flow rate; Current density
- Citation
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.40, no.14, pp.4819 - 4829
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
- Volume
- 40
- Number
- 14
- Start Page
- 4819
- End Page
- 4829
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/93822
- DOI
- 10.1016/j.ijhydene.2015.01.039
- ISSN
- 0360-3199
- Abstract
- In order to further commercialize fuel cell systems, the price of the systems needs to be reduced. In particular, problems concerning the high price of the stack, part of the fuel cell system, need to be resolved. The reduction of the number of stack layers can achieve shrinkage of the stack components, including the bipolar plate, MEA, and gasket, with a significant reduction in the price of the stack. Accordingly, to determine a way to reduce the number of stack layers, the bipolar plate needs to be large; this study thus presents a new channel pattern to restrain the increase of the differential pressure of the cathode that would be caused by a large-sized bipolar plate. Computational analysis shows that, in the case where a branching factor (f) of the branch channel is changed from 1 to 0.5 in its exit part, the performance of the channel is similar, but the pressure drop is reduced by 78.33% compared to a serpentine channel. Test results suggest that while the serpentine channel produces the electric power of 139.8 W due to the pressure drop, a blower consumes electric power of 9.12 W and, in case of the branch channel with the f value of 0.5 in its exit part, the blower consumes the electric power of 4.38 W, which is a 3.55% greater performance compared to the serpentine channel. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.