Prediction of dry-wet-dry transition in polymer electrolyte fuel cells

Gang Luo, Hyunchul Ju, Chao-yang Wang

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

Condensation and evaporation fronts co-exist in present-day automotive polymer electrolyte fuel cells (PEFCs) where low-humidity reactant gases are fed in counterflow. Capturing of such a transition between a single- and a two-phase regime is not only of technological significance, but also represents a great numerical challenge in PEFC modeling. In this work we demonstrate a computational capability to predict the dry-wet-dry transition in a PEFC based on the multiphase mixture (M2) framework. The M2 model is a three-dimensional, two-phase, and multicomponent full-cell model featuring a detailed membrane-electrode assembly (MEA) sub-model. Three-dimensional results on the dry-wet-dry transition under low-humidity operation and in counterflow are presented. The dry-to-wet transition described in this work provides a benchmark problem to develop and test future generation PEFC models.

Original languageEnglish (US)
JournalJournal of the Electrochemical Society
Volume154
Issue number3
DOIs
StatePublished - Feb 19 2007

Fingerprint

Electrolytes
fuel cells
Fuel cells
Polymers
electrolytes
counterflow
polymers
predictions
humidity
Atmospheric humidity
Condensation
Evaporation
condensation
assembly
Gases
evaporation
membranes
Membranes
Electrodes
electrodes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

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Prediction of dry-wet-dry transition in polymer electrolyte fuel cells. / Luo, Gang; Ju, Hyunchul; Wang, Chao-yang.

In: Journal of the Electrochemical Society, Vol. 154, No. 3, 19.02.2007.

Research output: Contribution to journalArticle

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