Water transport characteristics of a PEM fuel cell at various operating pressures and temperatures

Erni Misran, Nik Suhaimi Mat Hassan, Wan Ramli Wan Daud, Edy Herianto, Masli Irwan Rosli

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

In this investigation, water in a single-cell proton exchange membrane (PEM) fuel cell was managed using saturated hydrogen and dry air. The experiment was conducted at temperatures of 40, 50 and 60 C and pressures of 1 and 1.5 bar at both the anode and cathode gas inlets. The feed velocities of hydrogen and air were fixed at 3 and 6 L min-1, respectively. After reaching steady-state conditions, the relative humidity along the single serpentine gas channel was measured. From the experimental data, water transport properties were characterized based on a membrane hydration model. The electro-osmotic drag coefficient, water diffusion coefficient, membrane ionic conductivity and water back-diffusion flux were significantly influenced by the water content in the membrane of the PEM fuel cell. The water content depended on the relative humidity profile along the gas channel. In this investigation, a negative value for the water back-diffusion flux was measured; thus, the transport of water from the cathode to the anode did not occur. This phenomenon was due to the large water concentration gradient between the anode and cathode. Therefore, this strategy successfully prevented flooding in the PEM fuel cell.

Original languageEnglish
Pages (from-to)9401-9408
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume38
Issue number22
DOIs
Publication statusPublished - 26 Jul 2013

Fingerprint

Proton exchange membrane fuel cells (PEMFC)
fuel cells
membranes
protons
water
Water
Anodes
Cathodes
anodes
cathodes
Temperature
temperature
Membranes
Water content
moisture content
humidity
Atmospheric humidity
Gases
gases
Fluxes

Keywords

  • Flooding
  • PEM fuel cell
  • Relative humidity
  • Single serpentine flow-field channel
  • Water transport properties

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Water transport characteristics of a PEM fuel cell at various operating pressures and temperatures. / Misran, Erni; Hassan, Nik Suhaimi Mat; Wan Daud, Wan Ramli; Herianto, Edy; Rosli, Masli Irwan.

In: International Journal of Hydrogen Energy, Vol. 38, No. 22, 26.07.2013, p. 9401-9408.

Research output: Contribution to journalArticle

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