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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A selective hybrid stochastic strategy for fuel-cell multi-parameter identification
TL;DR: An original formulation that makes use of an accurate zero-dimensional multi-physical model of a polymer electrolyte membrane fuel cell and of two cooperating stochastic algorithms, particle swarm optimization and differential evolution, to extract multiple material parameters from the experimental data of polarization curves is presented.
Journal ArticleDOI
Transport mechanisms and performance simulations of a PEM fuel cell with interdigitated flow field
TL;DR: In this paper, a three-dimensional gas-liquid two-phase flow and transport model was developed and utilized to simulate the multi-dimensional, multi-phase Flow and Transport Model (FTM) in a proton exchange membrane (PEM) fuel cell with interdigitated flow field.
Journal ArticleDOI
Optimization of catalyst distribution along PEMFC channel through a numerical two-phase model and genetic algorithm
TL;DR: In this paper, a new approach is presented to find the optimum catalyst loading distribution along the flow field, which is performed by integrating a computational fluid dynamic (CFD) model and genetic algorithm optimization method.
Journal ArticleDOI
Effects of cathode humidification on the gas-liquid interface location in a PEM fuel cell
Chun-I Lee,Hsin-Sen Chu +1 more
TL;DR: In this article, the location of the gas-liquid interface under various humidity conditions in the cathode gas diffusion layer and the conventional flow field of a polymer electrolyte membrane fuel cell was investigated using commercial computational fluid dynamics (CFDRC) analysis.
Journal ArticleDOI
Elucidating two-phase transport in a polymer electrolyte fuel cell, Part 1: Characterizing flow regimes with a dimensionless group
Yun Wang,Ken S. Chen +1 more
TL;DR: In this article, a dimensionless group Da (Damkohler number for PEFC operation), defined as the ratio of water generation rate to water vapor-phase removal rate, is formulated to characterize the flow regimes in a PEFC.
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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Effective diffusivity and water-saturation distribution in single- and two-layer PEMFC diffusion medium
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