Comparative performance evaluation of self-humidifying PEMFCs with short-side-chain and long-side-chain membranes under various operating conditions

Dowon Cha, Seung Won Jeon, Wonseok Yang, Dongwoo Kim, Yongchan Kim

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

The performance of a proton electrolyte membrane fuel cell (PEMFC) with a perfluorosulfonic-acid-based membrane is strongly dependent on the water content in the membrane. In this study, comparative performance evaluation of self-humidifying PEMFCs with short-side-chain (SSC) and long-side-chain (LSC) membranes is conducted under various operating temperatures, air stoichiometries, back pressures, and voltages. The optimal operating conditions at each voltage are determined by using response surface methodology. The self-humidifying PEMFC with the SSC membrane exhibits higher power density than that with the LSC membrane owing to higher water retention. The dominant operating parameter for the system performance changes from the back pressure to air stoichiometry with a decrease in the voltage. Moreover, based on the dynamic response tests, the self-humidifying PEMFC with the SSC membrane exhibits better reliability and settling time than that with the LSC membrane.

Original languageEnglish
Pages (from-to)320-328
Number of pages9
JournalEnergy
Volume150
DOIs
Publication statusPublished - 2018 May 1

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

  • PEMFC
  • Performance
  • Self-humidification
  • Short-side-chain

ASJC Scopus subject areas

  • General Energy
  • Mechanical Engineering
  • Pollution
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Management, Monitoring, Policy and Law
  • Building and Construction
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment
  • Civil and Structural Engineering
  • Modelling and Simulation

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