A Two-dimensional Modeling and Numerical Simulation of PEM Fuel Cell

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Bayat, Maziyar | 2012

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 43663 (46)
University: Sharif University of Technology
Department: Energy Engineering
Advisor(s): Taghizadeh Manzari, Mehrdad; Roshandel, Ramin
Abstract:
In this research, a simple yet efficient two-dimensional model of proton exchange membrane fuel cell (PEMFC) is developed using stream function-vorticity formulation. The model accounts for the fluid flow and masstransport processes in cathode gas channel and gas diffuser layer. The governing equations are decoupled and solved usingtwo efficient approaches, Alternating Direction Implicit (ADI) and False Transient Method (FTM) in a modified geometry to simulate the fully-developed condition consistently. An in-house code was developed to perform a parametric study of fuel cell performance. The results show the variations of important parameters along the cathode channel such as velocity field, concentrations of species, local current density and polarization curve as well as influence of several key parameters such as relative humidity and porosity of gas diffusion layer on fuel cell performance
Keywords:
Proton Exchange Membrane (PEM)Fuel Cell ; Modeling ; Computational Fluid Dynamics (CFD) ; Finite Difference Method ; Polarization Curve

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