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Visualization of water buildup in the cathode of a transparent PEM fuel cell
- Publication Year :
- 2003
-
Abstract
- Two-phase flow and transport of reactants and products in the cathode of a transparent proton exchange membrane fuel cell (PEMFC) are studied experimentally. Images of water formed inside the cathode gas channels are presented to explain the phenomenon of water flooding. Effects of air stoichiometry, temperature, air humidity and different characteristics of diffusion layers are discussed. The influence of hydrophobic and hydrophilic diffusion layers compared to standard carbon papers on water transport is investigated. Mathematical verification of a threshold current density corresponding to first appearance of liquid water at the membrane/cathode interface confirms the experimental results.
- Subjects :
- Water transport
Renewable Energy, Sustainability and the Environment
Chemistry
Diffusion
Energy Engineering and Power Technology
Proton exchange membrane fuel cell
Cathode
law.invention
Diffusion layer
Membrane
Chemical engineering
law
Two-phase flow
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
Current density
Nuclear chemistry
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....0da1011a1efdfcb146d927500b5039c8