Experimental and numerical studies of micro PEM fuel cell

Rong Gui Peng*, Chen Chung Chung, Chiun-Hsun Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

A single micro proton exchange membrane fuel cell (PEMFC) has been produced using Micro-electromechanical systems (MEMS) technology with the active area of 2.5 cm 2 and channel depth of about 500 μm. A theoretical analysis is performed in this study for a novel MEMS-based design of amicro PEMFC. Themodel consists of the conservation equations of mass, momentum, species and electric current in a fully integrated finite-volume solver using the CFD-ACE+ commercial code. The polarization curves of simulation are well correlated with experimental data. Three-dimensional simulations are carried out to treat prediction and analysis of micro PEMFC temperature, current density and water distributions in two different fuel flow rates (15 cm 3/min and 40 cm 3/min). Simulation results show that temperature distribution within the micro PEMFC is affected by water distribution in the membrane and indicate that low and uniform temperature distribution in the membrane at low fuel flow rates leads to increased membrane water distribution and obtains superior micro PEMFC current density distribution under 0.4V operating voltage. Model predictions are well within those known for experimental mechanism phenomena.

Original languageEnglish
Pages (from-to)627-635
Number of pages9
JournalActa Mechanica Sinica/Lixue Xuebao
Volume27
Issue number5
DOIs
StatePublished - 1 Oct 2011

Keywords

  • Fuel flow rate
  • MEMS
  • Micro PEMFC
  • Simulation

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