0
Research Papers

Computational Flow Analysis of Bipolar Plate for Fuel Cells

[+] Author and Article Information
Rajesh Boddu

Department of Mechanical Engineering, Northern Illinois University, DeKalb, IL 60115

Pradip Majumdar1

Department of Mechanical Engineering, Northern Illinois University, DeKalb, IL 60115majumdar@ceet.niu.edu

1

Corresponding author.

J. Fuel Cell Sci. Technol 5(4), 041002 (Sep 05, 2008) (8 pages) doi:10.1115/1.2930772 History: Received July 12, 2006; Revised February 07, 2008; Published September 05, 2008

A trilayer fuel cell includes separate flow channels for hydrogen and oxygen. One potential alternative flow channel design is the use of a bipolar plate that connects cathode of a trilayer fuel cell to anode of the next trilayer fuel cell in order to provide an efficient flow of current through the cells with reduced voltage loss. The design of the bipolar plates provides considerable engineering challenges. It requires being thin with good contact surfaces for the purpose reduced electrical resistances as well as efficient transport processes for the reactant gasses in microchannels with reduced pressure drops. Fluid flow and heat and mass transport in gas flow channels play an important role in the effective performance of the fuel cell. A bipolar plate design with straight parallel channels is considered and flow field in gas flow channels are analyzed using computational fluid dynamic model. Results for pressure drop coefficient and heat transfer coefficients with varying flow Reynolds number are presented

FIGURES IN THIS ARTICLE
<>
Copyright © 2008 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 8

Pressure coefficient curves along different channels

Grahic Jump Location
Figure 10

Contours of temperature and velocity magnitude of channels (C-1 to C-6) along the flow direction: (a) 0.005m, (b) 0.015m, (c) 0.035m, and (d) 0.045m

Grahic Jump Location
Figure 1

Trilayer fuel cell with the series of bipolar plates

Grahic Jump Location
Figure 2

Pro-E solid modeling with basic configuration and geometry of the straight parallel channels

Grahic Jump Location
Figure 3

GAMBIT modeling for the bipolar plate with straight parallel channels

Grahic Jump Location
Figure 4

Computational mesh for straight parallel channels

Grahic Jump Location
Figure 5

Maximum centerline velocity distribution (entry length)

Grahic Jump Location
Figure 6

Contour plots: (a) static pressure, (b) dynamic pressure, (c) total pressure, (d) velocity magnitude, and (e) velocity vectors

Grahic Jump Location
Figure 7

Maximum centerline velocity along the length of the channel

Grahic Jump Location
Figure 9

Variation of pressure coefficient (CP) with Reynolds number

Grahic Jump Location
Figure 11

Distribution axial velocity component and temperature and near the top surface: (a) 0.015, (b) 0.025 m, (c) 0.035 m, (d) 0.045 m

Grahic Jump Location
Figure 12

Developing heat transfer coefficient for mass flow: (a) 0.0015 kg/sec, (b) 0.002 kg/sec, (c) 0.003 kg/sec, (d) 0.004 kg/sec, (e) 0.005 kg/sec

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