Effect of Spatially-Varying GDL Properties and Land Compression on Water Distribution in PEM Fuel Cells

2011 ◽  
Vol 158 (11) ◽  
pp. B1292 ◽  
Author(s):  
Yun Wang ◽  
Ken S. Chen
Keyword(s):  
Fuel Cells ◽  
Water Distribution ◽  
Pem Fuel Cells ◽  
Spatially Varying

High Resolution Neutron Radiography Imaging of Operating PEM Fuel Cells: Effect of Flow Configuration and Gravity on Water Distribution

2019 ◽  
Vol 16 (2) ◽  
pp. 1345-1355 ◽  
Author(s):  
Jacob Spendelow ◽  
R. Mukundan ◽  
John Davey ◽  
Tommy Rockward ◽  
Daniel S. Hussey ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Resolution ◽  
Water Distribution ◽  
Neutron Radiography ◽  
Pem Fuel Cells ◽  
Flow Configuration

Transients of Water Distribution and Transport in PEM Fuel Cells

2009 ◽  
Vol 156 (12) ◽  
pp. B1394 ◽  
Author(s):  
Irfan S. Hussaini ◽  
Chao-Yang Wang
Keyword(s):  
Fuel Cells ◽  
Water Distribution ◽  
Pem Fuel Cells

Numerical and experimental analysis of liquid water distribution in PEM fuel cells

2019 ◽  
Vol 189 ◽  
pp. 167-183 ◽  
Author(s):  
Željko Penga ◽  
Christian Bergbreiter ◽  
Frano Barbir ◽  
Joachim Scholta
Keyword(s):  
Fuel Cells ◽  
Liquid Water ◽  
Experimental Analysis ◽  
Water Distribution ◽  
Pem Fuel Cells

On-Line In-Situ Diagnostics of Processes Within PEM Fuel Cells by Raman Spectroscopy

2010 ◽  
Author(s):  
Hans Bettermann ◽  
Peter Fischer
Keyword(s):  
Raman Spectroscopy ◽  
Fuel Cells ◽  
Liquid Water ◽  
Water Distribution ◽  
Bipolar Plate ◽  
Pem Fuel Cells ◽  
Cell Processes ◽  
On Line ◽  
The Look

This contribution intends to show how Raman spectroscopy can be used to pursue processes inside PEM fuel cells. For this, two experimental setups have been worked out. At first a microscope objective was inserted into one bipolar plate. This enabled the detection of hydrogen, oxygen, nitrogen, vaporous and liquid water as well as changes in gas compositions and water distribution induced by an artificial pinhole within the MEA. A multiple-fiber Raman spectrometer with seven twin fibers was then developed to refine the look inside fuel cells. This setup permits the simultaneous record of gas compositions, liquid water and water vapor and how those species do change locally during operation. Beside the collection of data for modelling fuel cell processes, the multiple-fiber setup is primarily considered to monitor degradation processes and pre-stages of membrane damages.

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