Operational aspects of a large PEFC stack under practical conditions

摘要: Measurement results obtained from single-cell experiments give insight of electrochemical processes and allow for their optimization. However, the operator large fuel cell stacks is confronted by a different set problems that do not arise in such small scale experiments. Typically stack reactants cooling medium are fed parallel to cells. This can lead an uneven flow distribution channels voltage across stack. Therefore, cleverly devised control monitoring system required ensure no unbalanced strain put on paper investigates some aspects critical operation automotive applications as issues supply system, failures, appropriate countermeasures well procedures increase stability.