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Modeling of Heat Removal in a Single-Channel Microscale Fuel Cell

[+] Author Affiliations
Liyong Sun, Adam S. Hollinger

Penn State Behrend, Erie, PA

Paper No. FUELCELL2017-3405, pp. V001T03A001; 6 pages
doi:10.1115/FUELCELL2017-3405
From:
  • ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2017 Power Conference Joint With ICOPE-17, the ASME 2017 11th International Conference on Energy Sustainability, and the ASME 2017 Nuclear Forum
  • ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology
  • Charlotte, North Carolina, USA, June 26–30, 2017
  • Conference Sponsors: Advanced Energy Systems Division
  • ISBN: 978-0-7918-4056-6
  • Copyright © 2017 by ASME

abstract

Considerable waste heat is generated via the oxygen reduction reaction in polymer electrolyte membrane fuel cells. Consequently, heat generation and removal in conventional fuel cell architectures has been carefully investigated in order to achieve effective thermal management. Here we present a novel microscale fuel cell design that utilizes a half-membrane electrode assembly. In this design, a single fuel/electrolyte stream provides an additional pathway for heat removal that is not present in traditional fuel cell architectures. The model presented here investigates heat removal over a range of inlet fuel temperatures. Heat generation densities are determined experimentally for all inlet fuel temperatures. The simulations presented here predict thermal profiles throughout this microscale fuel cell design. Simulation results show that the fuel stream dominates heat removal at room temperature. As inlet fuel temperature increases, the majority of heat removal occurs via convection with the ambient air. The model also shows that heat transfer through the oxidant channel is minimal over the range of inlet fuel temperatures.

Copyright © 2017 by ASME

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