Affordable Access

Publisher Website

Multi-pass serpentine flow-fields to enhance under-rib convection in polymer electrolyte membrane fuel cells: Design and geometrical characterization

Authors
Journal
Journal of Power Sources
0378-7753
Publisher
Elsevier
Publication Date
Volume
188
Issue
1
Identifiers
DOI: 10.1016/j.jpowsour.2008.11.093
Keywords
  • Polymer Electrolyte Membrane Fuel Cells
  • Flow-Field Design
  • Under-Rib Convection
  • Multi-Pass Serpentine Flow-Field
Disciplines
  • Design

Abstract

Abstract The flow-field for reactant distribution is an important design factor that influences the performance of polymer electrolyte membrane fuel cells (PEMFCs). Under-rib convection between neighboring channels has been recognized to enhance the performance of PEMFCs with serpentine flow-fields. This study presents a simple design method to generate multi-pass serpentine flow-fields (MPSFFs) that can maximize under-rib convection in a given cell area. Geometrical characterization indicates that MPSFFs lead to significantly higher under-rib convection intensities and more uniform conditions, such as reactant concentrations, temperature, and liquid water saturation, compared with conventional serpentine flow-fields. The implications of the enhanced under-rib convection due to MPSFFs on the performance of PEMFCs are discussed.

There are no comments yet on this publication. Be the first to share your thoughts.