PEM FUEL CELL OPTIMAL HUMIDIFICATION ANALYSIS VERSUS HYDROGEN SUPPLY MODES (DEAD-END AND FLOW-THROUGH)

摘要

A dynamic pseudo 2D model of a polymer electrolyte membrane fuel cell has been developed. With the model, the optimal inlet cathode relative humidity has been computed for different cases (with or without anode humidification and dead-end or flow-through H_2 mode) and the different cases have been compared.The results show that a humidification strategy without humidifying the anode in a H2 dead-end configuration can be used with almost the same performances as a case with anode humidification which results in a simplification of the fuel cell system.