Real-time imaging of liquid water in an operating proton exchange membrane fuel cell

M. A. Hickner, N. P. Siegel, K. S. Chen, D. N. McBrayer, D. S. Hussey, D. L. Jacobson, M. Arif

Research output: Contribution to journalArticle

175 Citations (Scopus)

Abstract

Neutron imaging experiments were carried out to measure the water content of an operating proton exchange membrane fuel cell (PEMFC) under varying conditions of current density and temperature. It was found that the water content of the PEMFC is strongly coupled to the current density and temperature of the cell. These measurements indicate that changes in water content lag changes in current density by at least 100 s, both when the current density was increased and decreased. Less liquid water was measured in the cells when operating at 80°C than at 40°C. At 60°C cell temperature, a peak in water content was observed around 650 mA cm2 and the water content was found to decrease with increasing current density. This is explained in the context of cell heating by performing a simple thermal analysis of an operating PEMFC so as to yield quantitative information on the waste heat and its effects on the liquid water contained in the cell.

Original languageEnglish (US)
Pages (from-to)A902-A908
JournalJournal of the Electrochemical Society
Volume153
Issue number5
DOIs
StatePublished - Apr 17 2006

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Proton exchange membrane fuel cells (PEMFC)
Water content
Current density
Imaging techniques
Water
Liquids
Waste heat
Temperature
Thermoanalysis
Neutrons
Heating
Experiments

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

Hickner, M. A., Siegel, N. P., Chen, K. S., McBrayer, D. N., Hussey, D. S., Jacobson, D. L., & Arif, M. (2006). Real-time imaging of liquid water in an operating proton exchange membrane fuel cell. Journal of the Electrochemical Society, 153(5), A902-A908. https://doi.org/10.1149/1.2184893
Hickner, M. A. ; Siegel, N. P. ; Chen, K. S. ; McBrayer, D. N. ; Hussey, D. S. ; Jacobson, D. L. ; Arif, M. / Real-time imaging of liquid water in an operating proton exchange membrane fuel cell. In: Journal of the Electrochemical Society. 2006 ; Vol. 153, No. 5. pp. A902-A908.
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Hickner, MA, Siegel, NP, Chen, KS, McBrayer, DN, Hussey, DS, Jacobson, DL & Arif, M 2006, 'Real-time imaging of liquid water in an operating proton exchange membrane fuel cell', Journal of the Electrochemical Society, vol. 153, no. 5, pp. A902-A908. https://doi.org/10.1149/1.2184893

Real-time imaging of liquid water in an operating proton exchange membrane fuel cell. / Hickner, M. A.; Siegel, N. P.; Chen, K. S.; McBrayer, D. N.; Hussey, D. S.; Jacobson, D. L.; Arif, M.

In: Journal of the Electrochemical Society, Vol. 153, No. 5, 17.04.2006, p. A902-A908.

Research output: Contribution to journalArticle

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