Journal
INTERNATIONAL JOURNAL OF GREEN ENERGY
Volume 11, Issue 1, Pages 91-111Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15435075.2013.769882
Keywords
Dynamic simulation; System modeling; fuel cell; PEMFC; water crossover
Funding
- Danish Energy Agency
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Addressing large load fluctuation in automotive applications, dynamic analysis of a polymer electrolyte membrane fuel cell system is conducted here. Operations of a comprehensive system-level control-oriented fuel cell model with all necessary auxiliary components are demonstrated and simulation results for start-up scenario are presented. It is shown that system stability is influenced by slow thermal management controls. High loads at start-up affect voltage and system efficiency adversely. Cathode inlet water levels are found to be adequate for humidification of recirculated fuel stream. Liquid water at cathode outlet is considerably higher at high current density start-ups, pertaining to water removal issues.
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