Journal ArticleDOI
In situ diagnostic of two-phase flow phenomena in polymer electrolyte fuel cells by neutron imaging: Part A. Experimental, data treatment, and quantification
Denis Kramer,Jianbo Zhang,Ryoichi Shimoi,Eberhard Lehmann,Alexander Wokaun,Kazuhiko Shinohara,Günther G. Scherer +6 more
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TLDR
In this article, a unique experimental approach for the investigation of two-phase flow phenomena in technical PEFC has been realized, and algorithms for an enhanced quantitative evaluation of the obtained images are presented and successful application to the data demonstrated.About:
This article is published in Electrochimica Acta.The article was published on 2005-04-30. It has received 276 citations till now. The article focuses on the topics: Two-phase flow & Proton exchange membrane fuel cell.read more
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A review of polymer electrolyte membrane fuel cells: Technology, applications,and needs on fundamental research
TL;DR: In this article, the authors present the latest status of PEM fuel cell technology development and applications in the transportation, stationary, and portable/micro power generation sectors through an overview of the state-of-the-art and most recent technical progress.
Journal ArticleDOI
Liquid Water Removal from a Polymer Electrolyte Fuel Cell
TL;DR: In this paper, liquid droplet formation and emergence from the gas diffusion layer GDL and gas channel of a polymer electrolyte fuel cell PEFC are studied experimentally and theoretically.
Journal ArticleDOI
A Critical Review of Modeling Transport Phenomena in Polymer-Electrolyte Fuel Cells
Adam Z. Weber,Rodney L. Borup,Robert M. Darling,Prodip K. Das,Thomas J. Dursch,Thomas J. Dursch,Wenbin Gu,David Harvey,David Harvey,Ahmet Kusoglu,Shawn Litster,Matthew M. Mench,Rangachary Mukundan,Jon P. Owejan,Jon G. Pharoah,Marc Secanell,Iryna V. Zenyuk +16 more
TL;DR: In this paper, the authors present the results of a study at the Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA and the United Technologies Research Center, East Hartford, Connecticut 06118, USA.
Journal ArticleDOI
Main factors affecting the lifetime of Proton Exchange Membrane fuel cells in vehicle applications: A review
Pucheng Pei,Huicui Chen +1 more
TL;DR: In this article, the main difference between fuel cells used in vehicles and those used as fixed power is the load cycling, which sometimes leads to water management and gas transport problems, which further leads to degradation of fuel cell performance and attenuation of internal parts.
Journal ArticleDOI
Liquid water visualization in PEM fuel cells: A review
TL;DR: In this article, a literature review is provided for the experimental techniques that have been applied to visualize liquid water in operating hydrogen PEM fuel cells and flow fields, and the main hypotheses have been proposed to describe liquid water transport in the gas diffusion layer.
References
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Journal ArticleDOI
An iterative technique for the rectification of observed distributions
TL;DR: In this article, the authors consider the problem of determining the distribution of proper motions in a line-of-sight line of sight (LoSOS) image from a given number count.
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Effective diffusivity and water-saturation distribution in single- and two-layer PEMFC diffusion medium
Jin Hyun Nam,Massoud Kaviany +1 more
TL;DR: In this paper, the formation and distribution of condensed water in diffusion medium of proton exchange membrane fuel cells, and its tendency to reduce the local effective mass diffusivity and to influence cell performance, are studied.
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Liquid Water Transport in Gas Diffusion Layer of Polymer Electrolyte Fuel Cells
Ugur Pasaogullari,Chao Yang Wang +1 more
TL;DR: In this article, the governing physics of water transport in both hydrophilic and hydrophobic diffusion media is described along with one-dimensional analytical solutions of related transport processes, and liquid saturation in excess of 10% is predicted for a local current density of 1.4 A/cm 2
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Visualization of water buildup in the cathode of a transparent PEM fuel cell
TL;DR: In this article, two-phase flow and transport of reactants and products in the cathode of a transparent proton exchange membrane fuel cell (PEMFC) are studied experimentally.
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Two-phase transport and the role of micro-porous layer in polymer electrolyte fuel cells
Ugur Pasaogullari,Chao Yang Wang +1 more
TL;DR: In this paper, the effect of porosity, thickness and wettability of a micro-porous layer (MPL) on the two-phase transport in PEFC is elucidated.