The Impact of Humidification Temperature on a 1 kW Proton Exchange Membrane Fuel Cell Stack

Aleksandra Sveshnikova, Gioele Di Marcoberardino, Claudio Pirrone, Aldo Bischi, Gianluca Valenti, Alexander Ustinov, Stefano Campanari

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)

Abstract

The importance of water management in proton exchange membrane fuel cells is discussed in this paper. First part of research is dedicated to the characterization of a water-cooled 1kW PEMFC fuel cell stack at different operating conditions with calculation of net electric and thermal efficiencies. In the second part, the influence of inlet air humidification temperature at various loads and operational conditions was experimentally found. It was observed that humidification temperature in the air saturator has a strong impact on cell performance and this impact is growing with current density. Increase in humidification temperature by 8°C at 200mA/cm2 raised cell voltage only by 0.01V, while at 500mA/cm2 the same change led to 0.04V growth. Additionally, the effect of change of air stoichiometry on this relationship is studied. Increased air stoichiometry led to a maximum growth of the slope angle by 68% at 500mA/cm2.

Original languageEnglish
Pages (from-to)1661-1667
Number of pages7
JournalEnergy Procedia
Volume142
DOIs
Publication statusPublished - 2017
Event9th International Conference on Applied Energy, ICAE 2017 - Cardiff, United Kingdom
Duration: 21 Aug 201724 Aug 2017

Keywords

  • Absolute humidity
  • Humidification Temperature
  • PEM fuel cell
  • Polarization curve
  • Relative Humidity
  • Water management

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