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PRODID:OpenCms 20.0.18
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TZID:Europe/Berlin
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DTSTART:19700329T020000
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DTSTAMP:20190311T155308
UID:6261a262-440d-11e9-a578-000e0c3db68b
SUMMARY:Simulation of multiphase multicomponent processes in PEM fuel cells
DESCRIPTION:The development of new alternative power sources/supplies is animportant task nowadays. Polymer electrolyte membrane (PEM) fuel-cellscurrently are intensively investigated and improved for applications. This requires a profound understanding of the physical andelectrochemical processes elapsing in fuel cells. It has been foundthat the kinetics of the oxygen reduction at the cathodeis a limiting factor for the performance of fuel-cells. The transportof oxygen to the cathode through its porous diffusion layer occurs ina predominantly diffusive manner. The generation of liquid water atthe cathode-site constrains this oxygen transport to the reactionlayer. Thus, an efficient water management in the cathode diffusionlayer is necessary to improve the performance of the fuel-cell.In the seminar we present a multiphase multicomponent model originally developed at LH2 for the simulation of non-isothermal multiphase processes in the subsurface and the modifications necessary for modeling multiphase processes in the diffusion layer of PEM fuel-cells.The results of two studies one on the influence of capillary pressure and another on the effect of different flow regimes on the system behavior will be discussed.
DTSTART;TZID=Europe/Berlin:20071127T160000
DTEND;TZID=Europe/Berlin:20071127T173000
LOCATION:Pfaffenwaldring 61, Raum U1.003 (MML), Universität Stuttgart, , , , 
URL;VALUE=URI:https://www.iws.uni-stuttgart.de/en/institute/events/Simulation-of-multiphase-multicomponent-processes-in-PEM-fuel-cells/
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