Combining Electrical and Pressure Measurements for Early Flooding Detection in a PEM Fuel Cell

Dotelli, Giovanni, Ferrero, Roberto ORCID: 0000-0001-7820-9021, Stampino, Paola Gallo, Latorrata, Saverio and Toscani, Sergio (2016) Combining Electrical and Pressure Measurements for Early Flooding Detection in a PEM Fuel Cell. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 65 (5). pp. 1007-1014.

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Abstract

Water flooding is one of the main causes of performance degradation for polymer electrolyte membrane fuel cells (FCs), and its prompt detection is therefore important to guarantee optimal FC operation. This paper aims at comparing the most common methods for flooding diagnosis, which are based on electrical or gas pressure measurements. Their differences in terms of sensitivity to flooding are investigated, primarily focusing on their suitability for its early detection. In particular, the differences between anodic and cathodic pressure drop measurements are highlighted, as well as their relationship with the FC electrical output. The experimental results show that cathodic pressure measurements are the most convenient choice for early flooding detection. Measurements have been performed on a single cell, since it allows an easier interpretation of the results, although the applicability of the considered methods to FC stacks for commercial applications is also discussed.

Item Type:	Article
Uncontrolled Keywords:	Diagnostics, fuel cell (FC), impedance spectroscopy, pressure measurements, water management
Depositing User:	Symplectic Admin
Date Deposited:	28 Apr 2017 14:43
Last Modified:	19 Jan 2023 07:05
DOI:	10.1109/TIM.2015.2490999
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3007156