Imaging of water droplets formed during PEFC operation on GDLs with different pore sizes

Kenji Takada, Yuta Ishigami, Satoki Hirakata, Makoto Uchida, Yuzo Nagumo, Junji Inukai, Hiroyuki Nishide, Masahiro Watanabe

研究成果: Article

9 引用 (Scopus)

抄録

Gas diffusion layer (GDL) is an important component for the performance of polymer electrolyte fuel cells controlling the gas flow and the water transport. In this study, the real-time formation process of water droplets on two GDLs with different pore sizes was imaged using a CCD camera during the cell operation. A porphyrin luminescent dye was coated on the GDLs to clarify the shape of the water droplets. On the GDL with a smaller pore size, the droplets were distributed uniformly on the GDL in the flow channel at the cathode. On the GDL with a larger pore size, the water droplets were larger and formed mainly near the ribs of the flow channel, and the droplets were observed to move slowly towards the gas outlet. The difference in the formation of water droplets were explained by the difference in the partial air flow inside the GDLs along the gas channel.

元の言語English
ページ(範囲)388-391
ページ数4
ジャーナルElectrochemistry
79
発行部数5
出版物ステータスPublished - 2011 5

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Pore size
Diffusion in gases
Imaging techniques
Water
Channel flow
Gases
Porphyrins
CCD cameras
Electrolytes
Flow of gases
Fuel cells
Polymers
Cathodes
Coloring Agents
Dyes
Air

ASJC Scopus subject areas

  • Electrochemistry

これを引用

Takada, K., Ishigami, Y., Hirakata, S., Uchida, M., Nagumo, Y., Inukai, J., ... Watanabe, M. (2011). Imaging of water droplets formed during PEFC operation on GDLs with different pore sizes. Electrochemistry, 79(5), 388-391.

Imaging of water droplets formed during PEFC operation on GDLs with different pore sizes. / Takada, Kenji; Ishigami, Yuta; Hirakata, Satoki; Uchida, Makoto; Nagumo, Yuzo; Inukai, Junji; Nishide, Hiroyuki; Watanabe, Masahiro.

:: Electrochemistry, 巻 79, 番号 5, 05.2011, p. 388-391.

研究成果: Article

Takada, K, Ishigami, Y, Hirakata, S, Uchida, M, Nagumo, Y, Inukai, J, Nishide, H & Watanabe, M 2011, 'Imaging of water droplets formed during PEFC operation on GDLs with different pore sizes', Electrochemistry, 巻. 79, 番号 5, pp. 388-391.
Takada K, Ishigami Y, Hirakata S, Uchida M, Nagumo Y, Inukai J その他. Imaging of water droplets formed during PEFC operation on GDLs with different pore sizes. Electrochemistry. 2011 5;79(5):388-391.
Takada, Kenji ; Ishigami, Yuta ; Hirakata, Satoki ; Uchida, Makoto ; Nagumo, Yuzo ; Inukai, Junji ; Nishide, Hiroyuki ; Watanabe, Masahiro. / Imaging of water droplets formed during PEFC operation on GDLs with different pore sizes. :: Electrochemistry. 2011 ; 巻 79, 番号 5. pp. 388-391.
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