Garcia Sanchez, Daniel and Ruiu, Tiziana and Friedrich, K. Andreas and sanchez-monreal, juan and Vera, Marcos (2016) Analysis of the Influence of Temperature and Gas Humidity on the Performance Stability of Polymer Electrolyte Membrane Fuel Cells. Journal of The Electrochemical Society, 163 (3), F150-F159. Electrochemical Society, Inc.. doi: 10.1149/2.0071603jes. ISSN 0013-4651.
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Abstract
Adequate water management represents one of the main challenges in the design and operation of polymer electrolyte membrane fuel cells. In this work, the influence of inlet gas humidification on cell performance is investigated by in-situ current density measurements obtained using the segmented cell approach. Particular attention is paid to the combined effect of cell temperature and relative humidity of the anode and cathode feed streams. When operated at 80◦C and low humidity conditions, the cell is seen to undergo a severe voltage decline that is not observed at 60◦C. The analysis shows that the variation with temperature of the water uptake rate of the gaseous streams plays a key role in determining the observed differences in performance stability. In the case of 60◦C operation, the water uptake rate of the cathode stream at 50% inlet relative humidity is roughly 30% of its value at 80◦C at the same humidification level, resulting in a significantly lower drying capacity. A simple balance of water model, able to explain the observed cell behavior, is finally presented and discussed.
Item URL in elib: | https://elib.dlr.de/104772/ | ||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||
Title: | Analysis of the Influence of Temperature and Gas Humidity on the Performance Stability of Polymer Electrolyte Membrane Fuel Cells | ||||||||||||||||||||||||
Authors: |
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Date: | 2016 | ||||||||||||||||||||||||
Journal or Publication Title: | Journal of The Electrochemical Society | ||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||
Volume: | 163 | ||||||||||||||||||||||||
DOI: | 10.1149/2.0071603jes | ||||||||||||||||||||||||
Page Range: | F150-F159 | ||||||||||||||||||||||||
Publisher: | Electrochemical Society, Inc. | ||||||||||||||||||||||||
ISSN: | 0013-4651 | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | PEMFC, Water Management, current densities | ||||||||||||||||||||||||
HGF - Research field: | Energy | ||||||||||||||||||||||||
HGF - Program: | Storage and Cross-linked Infrastructures | ||||||||||||||||||||||||
HGF - Program Themes: | Fuel cells | ||||||||||||||||||||||||
DLR - Research area: | Energy | ||||||||||||||||||||||||
DLR - Program: | E EV - Energy process technology | ||||||||||||||||||||||||
DLR - Research theme (Project): | E - Electrochemical Processes (Fuel Cells) (old) | ||||||||||||||||||||||||
Location: | Stuttgart | ||||||||||||||||||||||||
Institutes and Institutions: | Institute of Engineering Thermodynamics > Electrochemical Energy Technology | ||||||||||||||||||||||||
Deposited By: | Garcia Sanchez, Dr Daniel | ||||||||||||||||||||||||
Deposited On: | 13 Dec 2016 08:49 | ||||||||||||||||||||||||
Last Modified: | 28 Nov 2023 09:14 |
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