A CFD based two-fluid model for a DMFC

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A CFD model for modeling gas evolution and flow patterns in a direct methanol fuel cell (DMFC) is presented. 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. The simulations of different flow field geometries provide a good illustration of the capability of the CFD model. Simulation results and main conclusions qualitatively agreed with experimental observations for a transparent DMFC available in literature. The developed 3D CFD model includes all relevant phenomena and factors and it is valuable for gas management in a DMFC design. This is an abstract of a paper presented at the 2005 AIChE Annual Meeting and Fall Showcase (Cincinnati, OH 10/30/2005-11/4/2005).

Original languageEnglish
Title of host publication05AIChE
Subtitle of host publication2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings
PublisherAmerican Institute of Chemical Engineers
ISBN (Print)0816909962, 9780816909964
Publication statusPublished - 2005 Jan 1
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: 2005 Oct 302005 Nov 4

Publication series

NameAIChE Annual Meeting Conference Proceedings
Volume2005

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
Fluids
Gases
Flow fields
Geometry
Flow patterns
Fuel cells
Mass transfer
Liquids

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

Danilov, V. A., Lim, J., Moon, I., & Choi, K. H. (2005). A CFD based two-fluid model for a DMFC. In 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings (AIChE Annual Meeting Conference Proceedings; Vol. 2005). American Institute of Chemical Engineers.
Danilov, Valeri A. ; Lim, Jongkoo ; Moon, Il ; Choi, Kyoung Hwan. / A CFD based two-fluid model for a DMFC. 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings. American Institute of Chemical Engineers, 2005. (AIChE Annual Meeting Conference Proceedings).
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abstract = "A CFD model for modeling gas evolution and flow patterns in a direct methanol fuel cell (DMFC) is presented. 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. The simulations of different flow field geometries provide a good illustration of the capability of the CFD model. Simulation results and main conclusions qualitatively agreed with experimental observations for a transparent DMFC available in literature. The developed 3D CFD model includes all relevant phenomena and factors and it is valuable for gas management in a DMFC design. This is an abstract of a paper presented at the 2005 AIChE Annual Meeting and Fall Showcase (Cincinnati, OH 10/30/2005-11/4/2005).",
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Danilov, VA, Lim, J, Moon, I & Choi, KH 2005, A CFD based two-fluid model for a DMFC. in 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings. AIChE Annual Meeting Conference Proceedings, vol. 2005, American Institute of Chemical Engineers, 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States, 05/10/30.

A CFD based two-fluid model for a DMFC. / Danilov, Valeri A.; Lim, Jongkoo; Moon, Il; Choi, Kyoung Hwan.

05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings. American Institute of Chemical Engineers, 2005. (AIChE Annual Meeting Conference Proceedings; Vol. 2005).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - A CFD model for modeling gas evolution and flow patterns in a direct methanol fuel cell (DMFC) is presented. 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. The simulations of different flow field geometries provide a good illustration of the capability of the CFD model. Simulation results and main conclusions qualitatively agreed with experimental observations for a transparent DMFC available in literature. The developed 3D CFD model includes all relevant phenomena and factors and it is valuable for gas management in a DMFC design. This is an abstract of a paper presented at the 2005 AIChE Annual Meeting and Fall Showcase (Cincinnati, OH 10/30/2005-11/4/2005).

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Danilov VA, Lim J, Moon I, Choi KH. A CFD based two-fluid model for a DMFC. In 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings. American Institute of Chemical Engineers. 2005. (AIChE Annual Meeting Conference Proceedings).