Automotive Fuel Cell Systems: Testing Highly Dynamic Scenarios

Jonas Breitinger (), Mark Hellmann, Helerson Kemmer and Stephan Kabelac
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Jonas Breitinger: Robert Bosch GmbH, 71272 Renningen, Germany
Mark Hellmann: Robert Bosch GmbH, 71272 Renningen, Germany
Helerson Kemmer: Robert Bosch GmbH, 71272 Renningen, Germany
Stephan Kabelac: Institute of Thermodynamics, Leibniz University Hannover, 30823 Garbsen, Germany

Energies, 2023, vol. 16, issue 2, 1-15

Abstract: PEM fuel cell systems face highly dynamic load profiles in automotive application. This work showcases the impact of media supply adaption, system architecture and test rig restrictions on the transient voltage response of an automotive fuel cell stack. Current step and load profile experiments were conducted on a system test rig, featuring automotive balance of plant components, and a short stack test bench. A time scale analysis allowed us to identify the predominant effect for the voltage response in each test case. The voltage response measured in the test cases was dominated either by air supply, membrane humidification or coolant temperature dynamics. This systematic comparison of different types of test setups highlights the importance of application-like system level testing as, in contrast to common experiments, different phenomena shape the electrical stack behavior.

Keywords: PEM; fuel cell system; dynamic operation; experimental (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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