Influence of cathode flow pulsation on performance of proton-exchange membrane fuel cell

Yun Ho Kim, Hun Sik Han, Seo Young Kim, Gwang Hoon Rhee

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The effect of cathode flow pulsation on the performance of a 10-cell proton-exchange membrane fuel cell is investigated. An acoustic woofer generates a pulsating flow, which is added to a unidirectional flow supplied from a compressed air tank. By adding the flow pulsation, the fuel cell power output and the limit current dramatically increase while the fuel cell efficiency slightly decreases. As the pulsation amplitude increases, the improvement in fuel cell performance is more pronounced. The performance enhancement shows no obvious dependency on a pulsation frequency change from 10 to 30 Hz. The cathode flow pulsation effect is more distinct at low cathode flow rates.

Original languageEnglish
Pages (from-to)112-117
Number of pages6
JournalJournal of Power Sources
Volume185
Issue number1
DOIs
StatePublished - 15 Oct 2008

Keywords

  • Balance of plant
  • Cathode flow pulsation
  • Fuel cell efficiency
  • Power output
  • Proton-exchange membrane fuel cell

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