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Improved thermal uniformity by introducing tree-like flowing channels in a pemfc flow-field plate

Jia, Yuxin ; Zhu, Rui ; Sunden, Bengt LU and Xie, Gongnan LU (2017) ASME 2017 International Mechanical Engineering Congress and Exposition, IMECE 2017 6.
Abstract

Thermal uniformity in the flow field plate of proton exchange membrane fuel cells (PEMFCs) is crucial for their power generating efficiency and reliability and therefore, has attracted much attention. The present numerical study is an attempt to optimize the flow channels via replacement of convectional zigzag continuous channels by tree-like bifurcated channels radially outwards. The numerical model is validated by experimental data available in the open literature. The effects of included angles and length ratios among the channels on thermal uniformity are analyzed based on detailed fluid flow characteristics. Results show that tree-like channels outperform conventional ones. It is found that tree-like flow channels can improve... (More)

Thermal uniformity in the flow field plate of proton exchange membrane fuel cells (PEMFCs) is crucial for their power generating efficiency and reliability and therefore, has attracted much attention. The present numerical study is an attempt to optimize the flow channels via replacement of convectional zigzag continuous channels by tree-like bifurcated channels radially outwards. The numerical model is validated by experimental data available in the open literature. The effects of included angles and length ratios among the channels on thermal uniformity are analyzed based on detailed fluid flow characteristics. Results show that tree-like channels outperform conventional ones. It is found that tree-like flow channels can improve thermal uniformity of proton exchange membrane fuel cells. Within limits, with smaller angle between bifurcated flow channels and length ratio 2-1/3 between higher flow channel and lower flow channel, PEMFC can obtain the most uniform temperature distribution in Y shape tree-liked flow field.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
PEMFC, Thermal uniformity, Tree-like flowing channels
host publication
Energy
volume
6
article number
IMECE2017-70088
publisher
American Society Of Mechanical Engineers (ASME)
conference name
ASME 2017 International Mechanical Engineering Congress and Exposition, IMECE 2017
conference location
Tampa, United States
conference dates
2017-11-03 - 2017-11-09
external identifiers
  • scopus:85040904392
ISBN
9780791858417
DOI
10.1115/IMECE2017-70088
language
English
LU publication?
yes
id
7b025dae-dfd7-4dcb-b03c-02397137017a
date added to LUP
2018-02-06 12:35:32
date last changed
2022-03-09 08:54:41
@inproceedings{7b025dae-dfd7-4dcb-b03c-02397137017a,
  abstract     = {{<p>Thermal uniformity in the flow field plate of proton exchange membrane fuel cells (PEMFCs) is crucial for their power generating efficiency and reliability and therefore, has attracted much attention. The present numerical study is an attempt to optimize the flow channels via replacement of convectional zigzag continuous channels by tree-like bifurcated channels radially outwards. The numerical model is validated by experimental data available in the open literature. The effects of included angles and length ratios among the channels on thermal uniformity are analyzed based on detailed fluid flow characteristics. Results show that tree-like channels outperform conventional ones. It is found that tree-like flow channels can improve thermal uniformity of proton exchange membrane fuel cells. Within limits, with smaller angle between bifurcated flow channels and length ratio 2-1/3 between higher flow channel and lower flow channel, PEMFC can obtain the most uniform temperature distribution in Y shape tree-liked flow field.</p>}},
  author       = {{Jia, Yuxin and Zhu, Rui and Sunden, Bengt and Xie, Gongnan}},
  booktitle    = {{Energy}},
  isbn         = {{9780791858417}},
  keywords     = {{PEMFC; Thermal uniformity; Tree-like flowing channels}},
  language     = {{eng}},
  publisher    = {{American Society Of Mechanical Engineers (ASME)}},
  title        = {{Improved thermal uniformity by introducing tree-like flowing channels in a pemfc flow-field plate}},
  url          = {{http://dx.doi.org/10.1115/IMECE2017-70088}},
  doi          = {{10.1115/IMECE2017-70088}},
  volume       = {{6}},
  year         = {{2017}},
}