Micro fluidic structure selection of metal mesh combinations in proton exchange membrane fuel cells for air supply enhancement

Title
Micro fluidic structure selection of metal mesh combinations in proton exchange membrane fuel cells for air supply enhancement
Authors
김형준장종현박현서박희영정재우김창섭강정원나영승
Issue Date
2020-11
Publisher
International journal of hydrogen energy
Citation
VOL 45, NO 57-32815
Abstract
One of the most significant factors affecting the performance of a proton exchange membrane fuel cell is the flow path for the passage of air and water, which is responsible for oxygen dispersion. A three-dimensional fine mesh, with optimized flow paths, exhibits the best performance in commercialized fuel cell electric vehicles, but the manufacturing cost is significantly high. To achieve high performance at a lower cost, the possibility of using a combination of commercially available screen meshes was investigated. The overlapped screen meshes should provide improved mass transport similar to a 3-D fine mesh. By using an optimized combination of screen meshes (200 and 100 mesh) and gasket thickness (150 μm thinner than the mesh flow field), an improvement in oxygen mass transport was achieved. The suggested combination shows a lower oxygen gain (0.030 V) than a single mesh (0.050 V) and a conventional single serpentine flow field (0.150 V).
URI
http://pubs.kist.re.kr/handle/201004/72099
ISSN
0360-3199
Appears in Collections:
KIST Publication > Article
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