...R. Banerjee; S. Chevalier; H. Liu; J. Lee; R. Yip; K. Han; B. K. Hong; A. Bazylak This work presents a comparison between carbon felt-type and paper-type gas diffusion layers (GDLs) for polymer electrolyte membrane (PEM) fuel cells in terms of the similarities and the differences between...

...Shian Li; Jinliang Yuan; Martin Andersson; Gongnan Xie; Bengt Sundén The flow field design of current collectors is a significant issue, which greatly affects the mass transport processes of reactants/products inside fuel cells. Especially for proton exchange membrane (PEM) fuel cells...

... weight polyethylene [ 23 ], high-density polyethylene [ 29 ], and Nafion [ 24 ] has been modeled using a similar approach. Constitutive models describing the mechanical behavior of polymer materials are useful for predicting the membrane stress history in PEM fuel cells, and thus contribute...

.... Editor: Umberto Desideri. 12 05 2014 28 12 2015 During a PEM fuel cell operation, hydrogen is electrochemically converted into protons, which are passed on from anode to cathode through electrolyte membrane. With excess proton, sulfur anhydrate was found to dissociate gradually...

... exchange membrane (PEM) fuel cell was fitted with different inlet flow configurations, including straight piping and piping containing a 90 deg bend and 180 deg bend prior to entering the manifold. Particle image velocimetry (PIV) was used to obtain mean and fluctuating velocity statistics within...

... between the two electrodes). On both electrodes, the water condensation is modeled by Zener diodes and the hydraulic dynamic (with pressure losses) by an association of two resistors and one capacitor. Simulations are conducted to validate this model on a 20-cell PEM fuel cell stack. Fig. 25 EEC...

...Bhaskar P. Saripella; Umit O. Koylu; Ming C. Leu A bio-inspired proton exchange membrane (PEM) fuel cell with a flow field that mimics a leaf pattern is experimentally and computationally evaluated. Experiments are conducted using a transparent assembly for direct visualization of liquid water...

... be effectively deployed in the region. In the first part of this work, an improved dynamic model of the Nexa 1.2 kW PEM fuel cell is developed using particle swarm optimization (PSO), and validated using experimental data. The developed model is then used to analyze the effect of the severe climate conditions...

.... , 350 ( 1–2 ), pp. 109 – 116 . 10.1016/j.memsci.2009.12.017 [17] Araby , R. E. , Attia , N. K. , Eldiwani , G. , Sobhi , S. , and Mostafa , T. , 2012 , “ Preparation of Sulfonated Monomer for Pem Fuel Cell and Solvent Optimization for Recrystallization ,” World Appl. Sci. J...

... of a single-channel PEM fuel cell was presented, based on numerical simulations. It was shown that operating parameters affect the power response differently over the cycles. The power response was shown to depend not only on the amplitude but also the time period of the variations and is strongly correlated...

... 14, 2014. Editor: Nigel M. Sammes. 11 07 2014 07 10 2014 14 11 2014 Several experiments have proved that water in liquid phase can be present at the anode of a PEM fuel cell due to vapor condensation resulting in mass transport losses. Nevertheless, it is not yet well...

... for PEM Fuel Cells ,” U.S. Department of Energy, Washington, DC, http://www1.eere.energy.gov/hydrogenandfuelcells/fuelcells/pdfs/component_durability_profile.pdf [5] DOE , 2009 , “ Procedures For Performing PEM Single Cell Testing ,” U.S. Department of Energy, Washington, DC, http://www1...

...Salar Imanmehr; Nader Pourmahmod In this research, the impact of structural parameters of bipolar plates on the proton exchange membrane (PEM) fuel cell performance has been investigated using numerical method, and this model incorporates all the essential fundamental physical and electrochemical...

...Utku Gulan; Hasmet Turkoglu; Irfan Ar In this study, the fluid flow and cell performance in cathode side of a proton exchange membrane (PEM) fuel cell were numerically analyzed. The problem domain consists of cathode gas channel, cathode gas diffusion layer, and cathode catalyst layer...

...Elaine Petrach; Ismat Abu-Isa; Xia Wang The bipolar plate is an important and integral part of the proton exchange membrane (PEM) fuel cell and PEM fuel cell stacks. Currently bipolar plates represent more than 80% by weight and 40% by cost of the fuel cell stack. Traditional materials used...

... 2006 proton exchange membrane fuel cells electrochemical electrodes nanoparticles electrophoretic coatings electrophoretic coating techniques carbon platinum organic compounds suspensions milling catalysts proton exchange membrane PEM fuel cells Pt∕C nanocatalysts Nafion®...

...Saptarshi Basu; Hang Xu; Michael W. Renfro; Baki M. Cetegen A fiber optic coupled diode laser sensor has been constructed for in situ measurements of water vapor partial pressure in active proton-exchange membrane (PEM) fuel cell systems. The bipolar plate of a prototypical PEM fuel cell...