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.
|Number of pages||9|
|Publication status||Published - 2005 Dec 1|
|Event||05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States|
Duration: 2005 Oct 30 → 2005 Nov 4
|Other||05AIChE: 2005 AIChE Annual Meeting and Fall Showcase|
|Period||05/10/30 → 05/11/4|
All Science Journal Classification (ASJC) codes