A CFD BASED TWO-FLUID MODEL for A DMFC

Valeri A. Danilov, Jongkoo Lim, il Moon, Kyoung Hwan Choi

Research output: Contribution to conferencePaper

Abstract

This study presents a CFD model for modeling gas evolution and flow patterns in a DMFC. The model is based on two-fluid model with a new method for estimating the gas content without empirical mass transfer coefficients. The new equation for the source term is derived using the equilibrium flash equation for multicomponent gas-liquid stream. The improved two-fluid model allows studying the effect of flow field geometry on gas evolution and fuel cell performance without empirical correlations. As shown, the flow geometry of the anode side has important implication on gas evolution. The developed CFD model is valuable in simulation of DMFC with different flow fields.

Original languageEnglish
Pages10821-10829
Number of pages9
Publication statusPublished - 2005 Dec 1
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: 2005 Oct 302005 Nov 4

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period05/10/3005/11/4

Fingerprint

Direct methanol fuel cells (DMFC)
Computational fluid dynamics
Gases
Flow fields
Fluids
Geometry
Flow patterns
Fuel cells
Anodes
Mass transfer
Liquids

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Danilov, V. A., Lim, J., Moon, I., & Choi, K. H. (2005). A CFD BASED TWO-FLUID MODEL for A DMFC. 10821-10829. Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States.
Danilov, Valeri A. ; Lim, Jongkoo ; Moon, il ; Choi, Kyoung Hwan. / A CFD BASED TWO-FLUID MODEL for A DMFC. Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States.9 p.
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Danilov, VA, Lim, J, Moon, I & Choi, KH 2005, 'A CFD BASED TWO-FLUID MODEL for A DMFC' Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States, 05/10/30 - 05/11/4, pp. 10821-10829.

A CFD BASED TWO-FLUID MODEL for A DMFC. / Danilov, Valeri A.; Lim, Jongkoo; Moon, il; Choi, Kyoung Hwan.

2005. 10821-10829 Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States.

Research output: Contribution to conferencePaper

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Danilov VA, Lim J, Moon I, Choi KH. A CFD BASED TWO-FLUID MODEL for A DMFC. 2005. Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States.