U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Probing the Water Content in Polymer Electrolyte Fuel Cells Using Neutron Radiography

Published

Author(s)

Daniel S. Hussey, Jeffrey Mishler, Yun Wang, Rangachary Mukundan, Jacob Spendelow, Rodney Borup

Abstract

This in-situ study examines the water content in polymer electrolyte fuel cells (PEFCs) using neutron radiography. Various conditions such as different polytetraflouroethylene (PTFE) loadings in the gas diffusion media including the micro-porous layer (MPL), different flow fields (single-channel and quad-serpentine channels), and co-/counter-flow configurations are investigated. We find that the highest water content occurs at a low current density when fixing the stoichiometry, and the PTFE loadings in the diffusion media greatly affect the amounts of water content in PEFCs. At low humidity, liquid water is found in the downstream area, increasing rapidly after its on-set. The effect of the relative humidity on water content is also examined.
Citation
Energy and Environmental Science
Pub Type
Journals

Keywords

flow field, micro-porous layer, neutron imaging, PEM Fuel Cell, two-phase flow
Radiation

Citation

Hussey, D. , Mishler, J. , Wang, Y. , Mukundan, R. , Spendelow, J. and Borup, R. (2012), Probing the Water Content in Polymer Electrolyte Fuel Cells Using Neutron Radiography, Energy and Environmental Science (Accessed July 26, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created May 8, 2012, Updated February 19, 2017
Was this page helpful?