Parametric Sensitivity Tests — European PEM Fuel Cell Stack Test Procedures
Samuel Simon Araya, Søren Juhl Andreasen, Søren Knudsen Kær
AI summary
70% confidenceThis paper reports on parametric sensitivity tests for a Nafion-based PEMFC stack, evaluating the impact of relative humidity, temperature, pressure, and stoichiometry on performance.
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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, Stack-Test. 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, 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 highly sensitive to relative humidity, with optimal performance achieved at 80% RH.
- Temperature has a significant impact on performance, with optimal temperature ranging from 70-80°C.
- Pressure and stoichiometry also affect performance, with optimal values found at 1 atm and 2.5 stoichiometry, respectively.
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Identifiers
- Journal
- ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology
- Year
- 2014