Performance Analysis of Polymer Electrolyte Membrane Fuel Cell by Perfectly Insulated Segmented Cells

To investigate local phenomena of water flooding or drying up in a polymer electrolyte membrane fuel cell, a segmented cell consisting of perfectly insulated 5-cells was fabricated. The gas flow channels were designed to provide the reactant gases for a series of 5-cells in single direction without...

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Bibliographic Details
Published inDenki kagaku oyobi kōgyō butsuri kagaku Vol. 78; no. 11; pp. 900 - 906
Main Author Gyoten, H
Format Journal Article
LanguageJapanese
Published 01.11.2010
Subjects
Drying
Electrolytes
Electrolytic cells
Flooding
Fuel cells
Gas flow
Humidity
Membranes
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Summary:To investigate local phenomena of water flooding or drying up in a polymer electrolyte membrane fuel cell, a segmented cell consisting of perfectly insulated 5-cells was fabricated. The gas flow channels were designed to provide the reactant gases for a series of 5-cells in single direction without gas mixing or backflow under the operation. Through the I-V measurements of each cell varying oxygen utilization, dew point, gas pressure, and temperature gradients along gas flow, the local humidity conditions of each cell were analyzed. The local phenomena of water flooding or drying up and their influences on the overall cell performance can be understood well by introducing the H sub(2)O vapor transportation index.
Bibliography:ObjectType-Article-2
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ISSN:1344-3542
DOI:10.5796/electrochemistry.78.900