0
RESEARCH PAPERS

PEM Fuel Cell Dynamic Model With Phase Change Effect

[+] Author and Article Information
X. Xue

Department of Mechanical Engineering,  The University of Connecticut, Storrs, CT 06269

J. Tang1

Department of Mechanical Engineering,  The University of Connecticut, 191 Auditorium Road, Unit 3139, Storrs, CT 06269jtang@engr.uconn.edu

1

Corresponding author.

J. Fuel Cell Sci. Technol 2(4), 274-283 (May 13, 2005) (10 pages) doi:10.1115/1.2041670 History: Received January 20, 2005; Revised May 13, 2005

In this research, a system-level dynamic model accounting for the phase change effect is developed for polymer electrolyte fuel cells (PEMFCs). This model can illustrate the complicated transient behavior of temperature, gas flow, phase change in the anode and cathode channels, and membrane humidification under operating conditions. Simulation indicates that vapor in the cathode channel is more likely to be in the over saturated state and phase change (condensation under large load current situation) then takes place, which leads to higher temperature at cathode channel due to latent heat generation. In the anode channel, on the other hand, the phase change is less likely to occur even if the inlet hydrogen is humidified with a high relative humidity value. The model is partially validated using the experimental data from open literature. A series of analyses are carried out to investigate the underlying physical mechanisms. This model can be used in the optimal design and dynamic control of PEMFCs.

FIGURES IN THIS ARTICLE
<>
Copyright © 2005 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Schematic diagram of fuel cell model

Grahic Jump Location
Figure 2

Temperature histories of fuel cell components without phase change

Grahic Jump Location
Figure 3

Temperature histories of fuel cell components with phase change

Grahic Jump Location
Figure 4

Stack output voltage and load current history

Grahic Jump Location
Figure 5

Temperature histories of fuel cell components with phase change

Grahic Jump Location
Figure 6

Species partial pressures

Grahic Jump Location
Figure 7

Phase change rates

Grahic Jump Location
Figure 8

Species mass in anode channel

Grahic Jump Location
Figure 9

Species mass in cathode channel

Grahic Jump Location
Figure 10

Average water content history of membrane

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