This work is dedicated to studying

This work is dedicated to studying the effects of the control and operating parameters of the load-up process on the gas supply and generating of gas starvation based on the dynamic behaviors of current outputs and voltage variations. Four parameters that should be of paramount importance for the load-up process, especially in vehicular fuel cell systems, have been studied. These parameters are the amplitude and rate of load changing, operating pressure and initial current density level. The single cell used in the experiments adopts serpentine channels in bipolar plates at both cathode and anode, which have an active area of 285 cm2 . On the cathode side there are 16 channels that are 1.5 mm in width and 1.2 mm in depth, while there are seven channels that are 1 mm in width and 0.8 mm in depth on the anode side.