Performance characteristics of a polymer electrolyte fuel cell with the anodic supply mode

Yongtaek Lee; Chasik Park; Jaehyeok Heo; Yongchan Kim

doi:10.3795/KSME-B.2007.31.7.588

Performance characteristics of a polymer electrolyte fuel cell with the anodic supply mode

Yongtaek Lee, Chasik Park, Jaehyeok Heo, Yongchan Kim

Research output: Contribution to journal › Article › peer-review

Abstract

The water transport inside a polymer electrolyte fuel cell (PEFC) varied according to the anodic supply mode. The performance characteristics of a PEFC which can be affected by the water transport were observed with the anodic supply mode. In the flow-through and recirculation mode the performance showed no reduction with time because the flow in the anode was not stagnated. In the dead-end mode, without any discharged gas, the water remains inside of the anode, which caused the reduction of the performance with the lapse of time. However, even in the dead-end mode, little reduction of the performance with time was shown when only the anode was humidified externally. It means that the back-diffusion was the major factor to the accumulation of water in the anode rather than external humidification.

Original language	English
Pages (from-to)	588-595
Number of pages	8
Journal	Transactions of the Korean Society of Mechanical Engineers, B
Volume	31
Issue number	7
DOIs	https://doi.org/10.3795/KSME-B.2007.31.7.588
Publication status	Published - 2007 Jul

Keywords

Anodic supply mode
Back-dififusion
Electro-osmotic drag
External humidification
PEFC
Water transport

ASJC Scopus subject areas

Mechanical Engineering

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10.3795/KSME-B.2007.31.7.588

Cite this

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title = "Performance characteristics of a polymer electrolyte fuel cell with the anodic supply mode",

abstract = "The water transport inside a polymer electrolyte fuel cell (PEFC) varied according to the anodic supply mode. The performance characteristics of a PEFC which can be affected by the water transport were observed with the anodic supply mode. In the flow-through and recirculation mode the performance showed no reduction with time because the flow in the anode was not stagnated. In the dead-end mode, without any discharged gas, the water remains inside of the anode, which caused the reduction of the performance with the lapse of time. However, even in the dead-end mode, little reduction of the performance with time was shown when only the anode was humidified externally. It means that the back-diffusion was the major factor to the accumulation of water in the anode rather than external humidification.",

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AU - Park, Chasik

AU - Heo, Jaehyeok

AU - Kim, Yongchan

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AB - The water transport inside a polymer electrolyte fuel cell (PEFC) varied according to the anodic supply mode. The performance characteristics of a PEFC which can be affected by the water transport were observed with the anodic supply mode. In the flow-through and recirculation mode the performance showed no reduction with time because the flow in the anode was not stagnated. In the dead-end mode, without any discharged gas, the water remains inside of the anode, which caused the reduction of the performance with the lapse of time. However, even in the dead-end mode, little reduction of the performance with time was shown when only the anode was humidified externally. It means that the back-diffusion was the major factor to the accumulation of water in the anode rather than external humidification.

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Performance characteristics of a polymer electrolyte fuel cell with the anodic supply mode

Abstract

Keywords

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