Need help with PEM Fuel Cell Modeling using COMSOL

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SUMMARY

The discussion focuses on modeling Proton Exchange Membrane Fuel Cells (PEMFC) using COMSOL Multiphysics. The user successfully validated a stationary model against a published reference but encountered issues with simulating the expected undershoot in voltage response when transitioning from lower to higher current density values. The user seeks guidance on how to accurately trigger this undershooting effect in their dynamic voltage versus time curve simulation.

PREREQUISITES
  • Understanding of PEMFC operation principles
  • Familiarity with COMSOL Multiphysics software
  • Knowledge of transport equations (mass, heat, species, charge)
  • Experience with dynamic modeling and validation techniques
NEXT STEPS
  • Research methods to model dynamic voltage response in PEMFC using COMSOL
  • Explore techniques for simulating current density transitions in fuel cell models
  • Investigate the impact of transport phenomena on voltage undershoot in PEMFC
  • Learn about advanced validation strategies for dynamic fuel cell simulations
USEFUL FOR

Engineers and researchers involved in fuel cell technology, particularly those focused on modeling and simulation of PEMFC performance using COMSOL.

KATHRYN9801
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I happen to be modelling PEMFC and accounted for various transport equation including mass, heat, species and charge. I was able to validate my stationary model based on a published reference. In validating its voltage dynamic response, I was expecting at a potentiometric conditions that an undershoot will be simulated similar to the experimental dynamic response of the reference study. Unfortunately, I was not able to gain the supposed end expected dynamic voltage vs. time curve. In this regard, does anyone knows how to trigger the undershooting in the volatge response when current is changed from lower to higher current density values?
 

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