Dynamic water management of polymer electrolyte membrane fuel cells using intermittent RH control

I. S. Hussaini, C. Y. Wang

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

A novel method of water management of polymer electrolyte membrane (PEM) fuel cells using intermittent humidification is presented in this study. The goal is to maintain the membrane close to full humidification, while eliminating channel flooding. The entire cycle is divided into four stages: saturation and de-saturation of the gas diffusion layer followed by de-hydration and hydration of membrane. By controlling the duration of dry and humid flows, it is shown that the cell voltage can be maintained within a narrow band. The technique is applied on experimental test cells using both plain and hydrophobic materials for the gas diffusion layer and an improvement in performance as compared to steady humidification is demonstrated. Duration of dry and humid flows is determined experimentally for several operating conditions.

Original languageEnglish (US)
Pages (from-to)3822-3829
Number of pages8
JournalJournal of Power Sources
Volume195
Issue number12
DOIs
StatePublished - Jun 15 2010

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

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