Effect of gas channel depth on current density distribution of polymer electrolyte fuel cell by numerical analysis including gas flow through gas diffusion layer

Gen Inoue, Yosuke Matsukuma, Masaki Minemoto

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)

Abstract

In order to apply a numerical analysis to design an actual scale separator in polymer electrolyte fuel cell (PEFC), it is needed to enlarge the calculation size. In this study, mass transfer and flow in gas diffusion layer were calculated, and gas diffusion layer (GDL) mass transfer approximate model based on the theoretical model was developed. Next, with this model, PEFC reaction and thermal flow analysis model, which enabled us to calculate the case of an actual scale cell, was made. Furthermore, the effects of separator channel depth on output performance and current density distribution were examined with this numerical analysis. As a result, in the case of shallow channels, the oxygen transfer rate to electrode increased because of gas flow in GDL. However, current density distribution and pressure drop increased, too. This calculation model can help us to design the optimal separator shape from the comprehensive viewpoint.

Original languageEnglish
Pages (from-to)136-152
Number of pages17
JournalJournal of Power Sources
Volume157
Issue number1
DOIs
Publication statusPublished - Jun 19 2006

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Effect of gas channel depth on current density distribution of polymer electrolyte fuel cell by numerical analysis including gas flow through gas diffusion layer'. Together they form a unique fingerprint.

Cite this