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
A two-dimensional steady state model including the effect of liquid water for a PEM fuel cell cathode
TL;DR: In this article, a two-dimensional steady state model for a PEM fuel cell cathode is described, where the effect of liquid water is taken into account in every layer of the cathode.
Journal ArticleDOI
Ionomer content in the catalyst layer of polymer electrolyte membrane fuel cell (PEMFC): Effects on diffusion and performance
Ai Suzuki,Unal Sen,Unal Sen,Tatsuya Hattori,Ryuji Miura,Ryo Nagumo,Hideyuki Tsuboi,Nozomu Hatakeyama,Akira Endou,Hiromitsu Takaba,Mark C. Williams,Akira Miyamoto +11 more
TL;DR: In this paper, the percolating paths of the carbons and electrolytes in a cathode layer (CCL) were successfully visualized in three-dimensions in order to investigate both the electronic and ionic connectivity by modeling a three-dimensional (3-D), meso-scale CCL of a polymer electrolyte membrane fuel cell.
Journal ArticleDOI
A Flow Boiling Microchannel Evaporator Plate for Fuel Cell Thermal Management
TL;DR: In this paper, a flow boiling microchannel evaporator plate has been developed that operates in a closed loop two-phase thermosyphon to provide a high power density thermal management system for PEM fuel cell applications.
Journal ArticleDOI
Innovative gas diffusion layers and their water removal characteristics in PEM fuel cell cathode
TL;DR: In this paper, three innovative gas diffusion layers with different micro-flow channels were proposed to solve liquid water flooding problems that conventional GDLs do not allow a well-organized liquid water flow from catalyst layer to gas flow channels.
Journal ArticleDOI
Effect of ambient conditions on performance and current distribution of a polymer electrolyte membrane fuel cell
TL;DR: In this paper, the performance and current distribution of a free-breathing polymer electrolyte membrane fuel cell (PEMFC) were studied experimentally in a climate chamber, in which temperature and relative humidity were controlled.
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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