Performance improvement of air-breathing proton exchange membrane fuel cell stacks by thermal management

Wei Mon Yan, Ming Shiang Zeng, Tien Fu Yang, Chen Yu Chen, Mohammad Amani, Pouria Amani

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Air-breathing is known as a way to reduce the weight, volume, and the cost of PEMFCs. In this study, the thermal management of the high-powered air-breathing PEMFC stacks by applying different cathode flow channel configurations is carried out to improve the stack performance. In order to verify the thermal management results, numerical simulation is also performed. The research results show that a combination of the 50% and 58.3% opening ratios in the air-breathing stack reduces the stack temperature and enhances the temperature distribution uniformity, leading to a better and more stable stack performance. In addition, it is found that the stack performance is significantly improved under the assisted-air-breathing condition. Moreover, the simulation results and the experimental data are basically consistent. It is suggested to adopt the average temperature over the cross-sectional flow region from simulation as fitting the simulation results and the measured data.

Original languageEnglish
Pages (from-to)22324-22339
Number of pages16
JournalInternational Journal of Hydrogen Energy
Volume45
Issue number42
DOIs
StatePublished - 28 Aug 2020

Keywords

  • Air-breathing proton exchange membrane fuel cell stack
  • Cathode channel design
  • Opening ratio
  • Temperature distribution
  • Thermal management

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