Effects of flow rate and starvation of reactant gases on the performance of phosphoric acid fuel cells

摘要: Abstract Effects of reactant gas flow rates and starvation on the performance phosphoric acid fuel cells were studied using single cells. As cell increased, then remained constant. The optimum hydrogen, oxygen air under operating condition 150 mA/cm2 at 190°C found to be 5 cc/min·cm2, 15 cc/min·cm2 1 atm room temperature, respectively. open circuit voltage decreased with increasing rate constant hydrogen rate, which is attributed increased cross-over rate. When gases again supplied after starvation, losses about mV in case for loss was independent time. These results discussed from electrochemical viewpoint cell.