... 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 software package fidap to solve their model simultaneously...

... 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 promising emerging power generation technologies to take over from existing power...

... 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 fluid dynamics electrochemical electrodes optimisation solid electrolytes solid oxide fuel cells...

.... , Guinea , D. M. , Moreno , B. , Gonzalez , L. , Garcia-Alegre , M. C. , and Guinea , D. , 2007 , “ Electric Modelling and Image Analysis of Channel Flow in Bipolar Plates ,” Int. J. Hydrogen Energy 0360-3199 , 32 , pp. 1572 – 1581 . 10.1016/j.ijhydene.2006.10.042 Hu , P...

... ( 5 ). channel flow data visualisation proton exchange membrane fuel cells 16 12 2009 04 02 2010 26 08 2010 26 08 2010 The experiment was operated at 75 ° C for the cell temperature with a 1.2 designed stoichiometry ratio for the anode inlet and a 2.5...

... field design flow channel aspect ratio channel flow proton exchange membrane fuel cells two-phase flow 2010 American Society of Mechanical Engineers ...

... 2008 03 04 2009 12 03 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...

... 24 02 2009 11 01 2010 11 01 2010 assembling channel flow deformation diffusion finite element analysis permeability plates (structures) proton exchange membrane fuel cells The gas diffusion layer (GDL) is an important component of proton exchange membrane (PEM) fuel...

... by adjusting the liquid water saturation at the interface of the cathode gas diffusion layer and flow channels. channel flow diffusion electrochemical electrodes numerical analysis proton exchange membrane fuel cells proton exchange membrane fuel cell membrane electrolyte assembly water...

... at the reaction surface can be calculated as 8 C rxn O 2 = C ch O 2 − I 4 F [ δ GDL D O 2 [ ε ( 1 − t ) 1.5 ] + 1 h ] 05 12 2007 04 07 2008 11 11 2009 11 11 2009 cathodes channel flow...

... 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...

... diffusion layers under the rib. Moreover, the transient behavior of liquid water transport in the GDL and the relative humidity distribution in both the anode and cathode channels at different operating conditions are discussed. 17 06 2007 28 01 2008 08 06 2009 channel flow diffusion...

... 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 Lithium ion secondary batteries have been one of the main issues in the field of portable electronic equipment...

... computer workstations. Schematic of PEM fuel cell operation Figure 1 shows a schematic of PEM fuel cell operation, typically a PEM fuel cell consists of both anode and cathode, and a membrane in between. At the anode, hydrogen flows into the gas flow channels, flows through the gas diffusion...

..., 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 channels, indicating 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...