... field with a single three-pass serpentine channel with trapezoidal cross section, in order to study the effect of channel shape on the pressure distribution and channel-to-channel flow crossover through the GDL. To carry out the necessary simulations, they used the commercial finite element method...

... 18 05 2010 16 09 2011 19 12 2011 19 12 2011 assembling catalysts channel flow current density electrochemical electrodes fixtures graphite proton exchange membrane fuel cells Proton exchange membrane (PEM) fuel cells are being considered as one of the most...

... , “ Modification of Results From Computational-Fluid-Dynamics Simulations of Single-Cell Solid-Oxide Fuel Cells to Estimate Multi-Cell Stack Performance ,” ASME Paper No. FuelCell2010-33014, FC-10-1083. 14 07 2010 28 08 2010 29 11 2010 29 11 2010 air channel flow computational...

... of the experimental setup ( 13 ) 25 11 2009 27 05 2010 01 11 2010 01 11 2010 channel flow chemically reactive flow finite element analysis proton exchange membrane fuel cells Proton exchange membrane (PEM) fuel cells are still too expensive for wide-spread commercialization...

... channel flow data visualisation proton exchange membrane fuel cells The proton exchange membrane (PEM) fuel cell is an electrochemical energy conversion device that converts the chemical energy of hydrogen and oxygen into electricity and heat by electrochemical redox reactions at the anode...

... field design flow channel aspect ratio channel flow proton exchange membrane fuel cells two-phase flow 11 09 2008 23 09 2009 20 07 2010 20 07 2010 2010 American Society of Mechanical Engineers ...

... 2010 12 03 2010 channel flow partial differential equations proton exchange membrane fuel cells two-phase flow The primary function of flow channels in fuel cells is to deliver gas reactants to the two electrodes: hydrogen to the anode and oxygen to the cathode. The secondary...

... assembling channel flow deformation diffusion finite element analysis permeability plates (structures) proton exchange membrane fuel cells The aforementioned FEA model and the PEM fuel cell model were implemented into a commercial package, COMSOL MULTIPHYSICS . The COMSOL MULTIPHYSICS...

....2006.06.092 03 03 2008 31 10 2008 06 01 2010 06 01 2010 channel flow diffusion electrochemical electrodes numerical analysis proton exchange membrane fuel cells proton exchange membrane fuel cell membrane electrolyte assembly water transport fuel cell model net...

... of Polymer Electrolyte Fuel Cells ,” J. Electrochem. Soc. 0013-4651 , 151 ( 3 ), pp. A399 – A406 . 10.1149/1.1646148 05 12 2007 04 07 2008 11 11 2009 11 11 2009 cathodes channel flow electrochemical electrodes proton exchange membrane fuel cells water...

... is not large, the domain close to the outlet of the respective channel suffers from oxygen/fuel starvation; the local current there is lowered and we may expect temperature maximum in the middle of the channel. Flow velocity appears in the denominator of Eq. 54 . Therefore, an increase in v 0...

... Jacobson, and Muhammad Arif, for their technical support. The liquid water content of an operating PEM fuel cell as determined by neutron radiography was found to be influenced by the gas channel flow velocity. It was observed that the liquid water content of the cell decreases, and a distinct...

... flooding in flow channels or gas diffusion layers (GDLs), decreasing the performance of a fuel cell. Many fuel cell models have been published to investigate the effect of water content on cell performance. fuel cell water management relative humidity neutron radiography channel flow...

... events that would not be detectable in more commonly used uniaxial strength tests. As such, this specimen configuration is expected to become a useful tool in characterizing mechanical integrity of proton exchange membranes. 26 06 2007 14 12 2007 15 05 2009 catalysis channel flow...

... channel flow is in single phase, employing two splitter plates in the header manifold can bring down the flow maldistribution to less than half of that for the case with 20% area maldistribution due to the GDL intrusion. When channel flow occurs in the two-phase regime, the liquid-water front can...

.... The results show that the PZT actuation leads to a more stable current output, more drained water, stronger suction, and overcome concentration losses at a proper PZT frequency. 16 06 2007 28 05 2008 11 05 2009 channel flow piezoelectric devices proton exchange membrane fuel cells...

... Institute of Science and Technology for financially supporting this research. 17 06 2007 10 10 2007 26 11 2008 channel flow direct methanol fuel cells drops Driven by these needs, there has been a strong effort to focus on the research and development of DMFCs. Most...

... with air-water across the porous media were investigated and discussed. 10 01 2007 14 12 2007 11 09 2008 cathodes channel flow computational fluid dynamics diffusion flow through porous media life testing proton exchange membrane fuel cells water management air-water...

..., makes the subject of the droplet deformation and motion an attractive problem. In this work, we numerically simulate the deformation of a drop of water attached to the wall of a channel flow using full two-dimensional Navier–Stokes equation and the volume-of-fluid method for capturing the interface...

... the hydrodynamic developing flow or entrance region flow, as shown in Fig. 8 . This entrance region phenomenon is more significant in the center channels. Flow tends to approach fully developed flow faster in outer channels. Contour plots: ( a ) static pressure, ( b ) dynamic pressure, ( c ) total pressure...