Publication: Model based evaluation of alkaline anion exchange membrane fuel cells with water management
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Issued Date
2019
Resource Type
File Type
application/pdf
ISSN
13858947
Other identifier(s)
2-s2.0-85066614237
Rights Holder(s)
Scopus
Bibliographic Citation
Chemical Engineering Journal. Vol 374, (2019), p.721-729
Suggested Citation
Saebea D., Chaiburi C., Authayanun S. Model based evaluation of alkaline anion exchange membrane fuel cells with water management. Chemical Engineering Journal. Vol 374, (2019), p.721-729. doi:10.1016/j.cej.2019.05.200 Retrieved from: https://hdl.handle.net/20.500.14740/5114
Author(s)
Abstract
The aim of this work is to improve alkaline anion exchange membrane fuel cell performance with water management. The mathematical model of alkaline anion exchange membrane fuel cells was developed with consideration of the water transport inside the membrane. The effects of key operating parameters such as the cathode relative humidity, anode relative humidity, cathode pressure, anode pressure on the net water flux across the membrane and the cell performance were analyzed with the unbalanced pressure concept to enhance the water back diffusion from the anode side to the cathode side. The increasing of the anode and cathode relative humidity leads to high water content, enhancement of membrane conductivity and reduction of ohmic loss resulting in a significant improvement of cell performance, especially an increase in the anode relative humidity. The high cell performance can achieve with the unbalanced pressure operation and the use of thin membrane is also preferred to facilitate water back diffusion from the anode to the cathode and enhance the cell performance. © 2019 Elsevier B.V.
Subject(s)
Anodes
Cathodes
Fuel cells
Gas fuel purification
Hydrogen
Ion exchange membranes
Ions
Membranes
Models
Water management
Alkaline anion exchange membrane
Cell performance
High cell performance
High water content
Membrane conductivity
Model-based evaluation
Operating parameters
Water transport
Alkaline fuel cells
Cathodes
Fuel cells
Gas fuel purification
Hydrogen
Ion exchange membranes
Ions
Membranes
Models
Water management
Alkaline anion exchange membrane
Cell performance
High cell performance
High water content
Membrane conductivity
Model-based evaluation
Operating parameters
Water transport
Alkaline fuel cells