Journal ArticleDOI
A two-phase flow and transport model for the cathode of PEM fuel cells
Lixin You,Hongtan Liu +1 more
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TLDR
In this article, a unified two-phase flow mixture model was developed to describe the flow and transport in the cathode for PEM fuel cells, where the boundary condition at the gas diffuser/catalyst layer interface couples the flow, transport, electrical potential and current density in the anode, cathode catalyst layer and membrane.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 2002-05-01. It has received 421 citations till now. The article focuses on the topics: Cathode & Anode.read more
Citations
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Journal ArticleDOI
The effect of flow distributors on the liquid water distribution and performance of a PEM fuel cell
TL;DR: In this article, a Proton Exchange Membrane (PEM) fuel cell with three different types of flow distributors is modeled and numerically simulated to find out the water formation and distribution characteristics.
Journal ArticleDOI
Insights into the role of wettability in cathode catalyst layer of proton exchange membrane fuel cell; pore scale immiscible flow and transport processes
TL;DR: In this article, a direct three-dimensional pore-scale modeling to look at the complex immiscible two-phase flow in CCL is presented, for the first time, to explore the wettability effects, applying hydrophilic and hydrophobic properties using different surface contact angles.
Journal ArticleDOI
Water balance in a free-breathing polymer electrolyte membrane fuel cell
TL;DR: In this article, water balance in a free-breathing polymer electrolyte membrane fuel cell was studied, focusing on the effect of anode conditions, and it was found that water distribution was more favorable when the general direction of hydrogen flow was against the air flow.
Journal ArticleDOI
A novel three-dimensional, two-phase and non-isothermal numerical model for proton exchange membrane fuel cell
TL;DR: In this article, a three-dimensional, two-phase and non-isothermal model of a proton exchange membrane fuel cell (PEMFC) based on the previously developed model using the two-fluid method is established.
Journal ArticleDOI
Analytical and Numerical Analysis of PEM Fuel Cell Performance Curves
TL;DR: In this article, the experimental voltage-current curves of a polymer electrolyte membrane (PEM! fuel cell) were analyzed using a simplified analytical model, which contains a minimal number of parameters and ignores three-dimensional ~3D! effects.
References
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Journal ArticleDOI
Polymer Electrolyte Fuel Cell Model
TL;DR: In this paper, an isothermal, one-dimensional, steady-state model for a complete polymer electrolyte fuel cell (PEFC) with a 117 Nation | membrane is presented, which predicts an increase in membrane resistance with increased current density and demonstrates the great advantage of a thinner membrane in alleviating this resistance problem.
Book
Principles of heat transfer in porous media
TL;DR: In this article, the authors identify the principles of transport in porous media and compare the available predicted results, based on theoretical treatments of various transport mechanisms, with the existing experimental results, and the theoretical treatment is based on the volume-averaging of the momentum and energy equations with the closure conditions necessary for obtaining solutions.
Journal ArticleDOI
Boundary and inertia effects on flow and heat transfer in porous media
Kambiz Vafai,Chuen-Lin Tien +1 more
TL;DR: In this article, the effects of a solid boundary and the inertial forces on flow and heat transfer in porous media were analyzed, and a new concept of the momentum boundary layer central to the numerical routine was presented.
Journal ArticleDOI
A Mathematical Model of the Solid‐Polymer‐Electrolyte Fuel Cell
Dawn Bernardi,Mark W. Verbrugge +1 more
TL;DR: In this article, a mathematical model of the solid polymer-electrolyte fuel cell is presented to investigate factors that limit cell performance and elucidate the mechanism of species transport in the complex network of gas, liquid, and solid phases of the cell.
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Two-phase flow and transport in the air cathode of proton exchange membrane fuel cells
Effective diffusivity and water-saturation distribution in single- and two-layer PEMFC diffusion medium
Jin Hyun Nam,Massoud Kaviany +1 more