Experimental study on transient response according to variation of rib height at fuel cell plate

Ki Hoon Nam, Sung Ho Yun, Sung Ho Han, Nam Hyeon Choi, Young Don Choi

Research output: Contribution to journalArticle

Abstract

In the present study, using a variation of rib height, the transient response and the performance are investigated. The cell voltage is acquired according to the current density change(0.8A/cm2 to 1.0A/cm 2) under same stoichiometry and relative humidity. The different level of undershoots appeared at the different clamping pressure(1.5MPa and 2.0MPa) and different rib height. At 1.5MPa clamping pressure, rib manufactured cut at 100μm height goes to steady state faster than reference plate and has lower maximum undershoot voltage. But performance is lower than reference plate due to increasing contact resistance.

Original languageEnglish
Pages (from-to)1009-1014
Number of pages6
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume37
Issue number11
DOIs
Publication statusPublished - 2013 Jan 1

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Transient analysis
Fuel cells
Electric potential
Contact resistance
Stoichiometry
Atmospheric humidity
Current density

Keywords

  • Clamping Pressure
  • GDL
  • Transient Response
  • Variation of Rib

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Experimental study on transient response according to variation of rib height at fuel cell plate. / Nam, Ki Hoon; Yun, Sung Ho; Han, Sung Ho; Choi, Nam Hyeon; Choi, Young Don.

In: Transactions of the Korean Society of Mechanical Engineers, B, Vol. 37, No. 11, 01.01.2013, p. 1009-1014.

Research output: Contribution to journalArticle

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