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

37 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

Fingerprint

Direct methanol fuel cells (DMFC)
computational fluid dynamics
dynamic models
fuel cells
Dynamic models
Computational fluid dynamics
methyl alcohol
Gases
gas evolution
current distribution
inlet flow
parallel flow
Inlet flow
Parallel flow
outlets
gases
mass transfer
Flow fields
flow distribution
Anodes

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

Cite this

Danilov, Valeri A. ; Lim, Jongkoo ; Moon, il ; Chang, Hyuk. / Three-dimensional, two-phase, CFD model for the design of a direct methanol fuel cell. In: Journal of Power Sources. 2006 ; Vol. 162, No. 2 SPEC. ISS. pp. 992-1002.
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Three-dimensional, two-phase, CFD model for the design of a direct methanol fuel cell. / Danilov, Valeri A.; Lim, Jongkoo; Moon, il; Chang, Hyuk.

In: Journal of Power Sources, Vol. 162, No. 2 SPEC. ISS., 22.11.2006, p. 992-1002.

Research output: Contribution to journalArticle

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