0
TECHNICAL PAPERS

Experimental Evaluation of the Dynamic Behavior of an Air-Breathing Fuel Cell Stack

[+] Author and Article Information
Svein O. Morner, Sanford A. Klein

Solar Energy Laboratory, University of Wisconsin—Madison, Madison, WI 53706

J. Sol. Energy Eng 123(3), 225-231 (Mar 01, 2001) (7 pages) doi:10.1115/1.1385202 History: Received June 01, 2000; Revised March 01, 2001
Copyright © 2001 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Start up current with constant resistance load (13.7 Ohms). The fuel cell started to operate at 110 s.
Grahic Jump Location
Temperature rise of the fuel cell stack with no current for 14 kPa hydrogen gage pressure from 0 s to 3600 s, 34 kPa from 3600 s to 7560 s, 69 kPa from 7560 s to 10800 s
Grahic Jump Location
Three cells in series (not to scale)
Grahic Jump Location
Experimental cell stack showing data acquisition to measure temperatures and voltages over several cells and current
Grahic Jump Location
Hydrogen pressure through the fuel cell stack at a current of 2.62 A and 1.06 mm channel width. Lratio is the length divided by the total length of the channel.
Grahic Jump Location
The current (thick line) and air exhaust temperature of the fuel cell stack. The resistance is kept constant from 200 s to 4200 s, 4000 s to 5800 s, and 5800 s to 10,800 s. The cooling fans are turned on at 7100 s.
Grahic Jump Location
Stack current-voltage data for several temperatures measured at the top of the stack
Grahic Jump Location
Stack current-voltage data for several temperatures at the top of the stack. The symbols identify the max and min temperatures on top of the stack.
Grahic Jump Location
Current-voltage characteristics for cells 2, 3, average of 12 and 13, and 21 from purge valve. These data are from the same experiment as Fig. 9. The symbols identify the max and min temperatures on top of the stack.
Grahic Jump Location
Stack voltage current characteristics for the fuel cell with the convection chimney with air exhaust temperature between 45 and 55°C
Grahic Jump Location
Temperature and current for both humid air and ambient airflow rate (4.25 Normal liter/min) into the fuel cell stack. The fuel cell stack cooling fans were turned on for the humid airflow rate at time = 3600 s.
Grahic Jump Location
The voltage of the fuel cell stack operated at 1, 2, 3 A at an extended period of time with air of ambient conditions flowing into the stack. The fuel cell stack temperature is as shown in Fig. 12 for the 4.25 Nl/min plot and similar for the 2.15 and 7.08 Nl/min plot.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In