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 journalArticlepeer-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 languageEnglish
Pages (from-to)588-595
Number of pages8
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume31
Issue number7
DOIs
Publication statusPublished - 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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