An experimental study on water transport through the membrane of a PEFC operating in the dead-end mode

Lee, Yongtaek; Kim, Bosung; Kim, Yongchan

doi:10.1016/j.ijhydene.2009.07.010

Cited by 99 publications

(40 citation statements)

References 33 publications

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“…Fuel cells operating under dead-end anode (DEA) mode is of increasing interest [2][3][4][5][6][7][8][9][10][11][12][13][14] as control systems can be significantly simplified. However, water accumulation and the N 2 crossover (cathode  anode) are issues of concern [2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Paradox phenomena of proton exchange membrane fuel cells operating under dead-end anode mode

Jiang

Zeng

Wang

et al. 2014

Journal of Power Sources

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Section: Introductionmentioning

confidence: 99%

“…However, water accumulation and the N 2 crossover (cathode  anode) are issues of concern [2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Paradox phenomena of proton exchange membrane fuel cells operating under dead-end anode mode

Jiang

Zeng

Wang

et al. 2014

Journal of Power Sources

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“…It leads to nitrogen 'blanketing', where N2 accumulates in the centre of anode cells, thereby blocking H2 access to the active surface [15]. Within the anode flowfield, water has been shown, by neutron imaging [16,17] and by the use of a transparent cell [18], to accumulate towards the exhaust ends of the cells. However, very few groups have considered the optimisation of dead-ended anode operation using diluted hydrogen feedstocks.…”

Section: Nhmentioning

confidence: 99%

Development of a polymer electrolyte fuel cell dead-ended anode purge strategy for use with a nitrogen-containing hydrogen gas supply

Okedi

Meyer

Hunter

et al. 2017

International Journal of Hydrogen Energy

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Graphical Highlight2 Highlights (<85 characters per highlight; 3-5 highlights needed)  Nitrogen-containing hydrogen gas mix supplied to PEFC dead-ended anode. Voltage decay seen as both nitrogen content in fuel and fuel cell load increase. Design of Experiments methodology used to assess stack efficiency. Optimised purge strategy identified for nitrogen-containing hydrogen fuel. AbstractThe effect of nitrogen content within the hydrogen fuel supplied to a polymer electrolyte fuel cell (PEFC) operating in dead-ended anode mode is examined, with a view to using an ammonia decomposition product gas mix (containing 75H2:25N2) as the hydrogen-containing fuel. The impact of this impure hydrogen stream, supplied to the anode, was evaluated in terms of mean cell voltage and in relation to actual operating conditions (purge interval, dead-ended interval and fuel cell load). Design of Experiments (DoE) methodology, using multi-linear models, assessed hydrogen utilisation in terms of stack efficiency and identified an effective and viable dead-ended anode purge strategy for this nitrogen-containing hydrogen fuel.

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“…The influence of water on O2 diffusion can be observed through the pressure drop measurement technique, as studied in [20][21]. Other methods, aiming at observing in situ water behaviour, can also give a qualitative idea of the impact that water can have on O2 diffusion: visual measurements on transparent fuel cells as seen in [22][23], or neutron radiology [24][25]. St-Pierre gives in [26] an exhaustive list of the experimental methods that can be used for this purpose.…”

Section: General Issuesmentioning

confidence: 99%

Steady state macroscopic model of the influence of water on the performances of a micro air-breathing fuel cell

Zeidan¹,

Turpin²,

Cantin³

et al. 2011

Eur. Phys. J. Appl. Phys.

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To cite this version:M. Zeidan, Ch. Turpin, F. Cantin, S. Astier. Steady state macroscopic model of the influence of water on the performances of a micro air-breathing fuel cell. European Physical Journal: Applied Physics, EDP Sciences, 2011, 54 (2) Model of the influence of water on a micro air-breathing fuel cell Abstract. Water management is one of the most crucial issues to drive PEM fuel cells. The challenge is enhanced in the case of Micro Air-Breathing Proton Exchange Membrane Fuel Cells (µABFC): their thinness and their reduced surface indeed make their hydration state fast changing and very sensitive to the experimental conditions (temperature and Relative Humidity (RH)). It can lead to strong flooding or drying out issues. Firstly, this study highlights this sensitivity by various measurements. Then a steady state macroscopic model for the µABFC is proposed, focusing on the cathode, using a rather original approach for diffusion in porous media. Finally, a literal steady state formula for the water content is provided, and its influences on the performances of the µABFC are explicitly proposed. The model is parameterized and compared to measures in several atmospheric conditions.

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An experimental study on water transport through the membrane of a PEFC operating in the dead-end mode

Cited by 99 publications

References 33 publications

Paradox phenomena of proton exchange membrane fuel cells operating under dead-end anode mode

Paradox phenomena of proton exchange membrane fuel cells operating under dead-end anode mode

Development of a polymer electrolyte fuel cell dead-ended anode purge strategy for use with a nitrogen-containing hydrogen gas supply

Steady state macroscopic model of the influence of water on the performances of a micro air-breathing fuel cell

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