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The paper presents parametric sensitivity tests on a Nafion-based low temperature PEMFC stack to evaluate its performance under varying conditions, including relative humidity, temperature, pressure, and stoichiometry.

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System
MFC

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Abstract

As fuel cells are increasingly commercialized for various applications, harmonized and industry-relevant test procedures are necessary to benchmark tests and to ensure comparability of stack performance results from different parties. This paper reports the results of parametric sensitivity tests performed based on test procedures proposed by a European project, StackTest. The sensitivity of a Nafion®-based low temperature PEMFC stack's performance to parametric changes was the main objective of the tests. Four crucial parameters for fuel cell operation were chosen; relative humidity (RH), temperature, pressure, and stoichiometry at varying current density. Furthermore, procedures for polarization curve recording were also tested both in ascending and descending current directions.

Key findings

  • The stack's performance is sensitive to changes in relative humidity, temperature, and pressure.
  • The polarization curve recording procedures in both ascending and descending current directions are reliable.
  • The results demonstrate the importance of harmonized test procedures for fuel cell stack performance benchmarking.

Keywords

Stack (abstract data type)Proton exchange membrane fuel cellElectrolyteFuel cellsParametric statisticsNuclear engineering

Identifiers

DOI
10.1115/1.4028949
Journal
Journal of Fuel Cell Science and Technology
Year
2014