Three-dimensional, two-phase, CFD model for the design of a direct methanol fuel cell

Valeri A. Danilov, Jongkoo Lim, Il Moon, Hyuk Chang

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

This study presents a computational fluid dynamics (CFD) model for modelling gas evolution and current distribution in a direct methanol fuel cell (DMFC). The improved two-phase model includes a new sub-model for estimating the interface mass transfer without empirical correlations. Simulation results in a horizontal channel of the DMFC agree with typical trends reported in the literature for bubbly flows. The increase in inlet flow rate is found to lead to a decrease in the gas content in the outlet of the anode channels. A case study illustrates applications of the CFD model for modelling gas evolution and current distribution in a DMFC with a parallel flow-field design. Simulation results with a improved two-phase model provide an explanation of experimental observations of a transparent DMFC with parallel channels. An improved three-dimensional CFD model includes all relevant phenomena and is valuable for gas management in a DMFC design.

Original languageEnglish
Pages (from-to)992-1002
Number of pages11
JournalJournal of Power Sources
Volume162
Issue number2 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Nov 22

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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