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Energy efficient cold start of a Polymer Electrolyte Membrane Fuel Cell coupled to a thermochemical metal hydride preheater

Author

Listed:
  • Melnik, Daniel
  • Bürger, Inga
  • Mitzel, Jens
  • Käß, Julian
  • Sarkezi-Selsky, Patrick
  • Jahnke, Thomas
  • Knöri, Torsten

Abstract

Cold start is still a major factor for proton exchange membrane (PEM) fuel cell degradation. Using a metal hydride-based preheater can significantly reduce the time to reach temperatures above 0 °C without consuming any extra energy due to two specific features of the fundamental thermochemical reaction: First, thermal energy provided during fuel cell operation as waste energy can be stored long-time and loss-free for the next cold start event. Second, providing a hydrogen pressure of 8 bar immediately triggers the exothermal absorption reaction to heat up a system from temperatures as low as −20 °C.

Suggested Citation

  • Melnik, Daniel & Bürger, Inga & Mitzel, Jens & Käß, Julian & Sarkezi-Selsky, Patrick & Jahnke, Thomas & Knöri, Torsten, 2024. "Energy efficient cold start of a Polymer Electrolyte Membrane Fuel Cell coupled to a thermochemical metal hydride preheater," Applied Energy, Elsevier, vol. 359(C).
  • Handle: RePEc:eee:appene:v:359:y:2024:i:c:s0306261923019499
    DOI: 10.1016/j.apenergy.2023.122585
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