NDLI: Effect of Reverse Voltage on Proton Exchange Membrane Fuel Cell Performance

Content Provider	IEEE Xplore Digital Library
Author	Hungjoo Lee Hyundo Song Junbom Kim
Copyright Year	2006
Description	Author affiliation: Dept. of Chem. Eng., Ulsan Univ. (Hungjoo Lee; Hyundo Song; Junbom Kim)
Abstract	Reverse voltage could be occurred on proton exchange membrane fuel cell (PEMFC) by fuel starvation and/or uneven gas distribution in flow channel. The performance of PEMFC was decreased by reverse voltage. Performance decrease in local area could be affected by duration and/or extent of reverse voltage. Hydrogen stoichiometric ratio was used to find the experimental condition of abrupt voltage decrease. In case that specific cell was reached to reverse voltage, the cell performance was checked every 5 cycle. LabVIEW was used to make control logic of automatic load off system in preset voltage. Performance change experiment was carried out at constant current condition. When the cell voltage was reached to 0.1 V, electronic load was disconnected to make open circuit voltage for 1 minute. Fuel cell performance was checked every 5 cycle and the degree of performance decrease and/or recovery was estimated. Cell performance was maintained up to 40 cycle in case that the load off condition was set at 0 V.
Starting Page	205
Ending Page	208
File Size	3243960
Page Count	4
File Format	PDF
ISBN	1424404266
DOI	10.1109/IFOST.2006.312286
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-18
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protons Hydrogen Circuits Fuel cells Voltage Humidity Automatic logic units Biomembranes Anodes Cathodes
Content Type	Text
Resource Type	Article

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