The investigation of the change in electricity generation in the pem fuel cell due to hydrogen gas humidity

Today, many scientists have reported that there are hydrogen-powered systems that can provide the world's growing energy needs continuously and without renewing the nature. One of the most economical and efficient technologies that use hydrogen energy is fuel cell technology. For this purpose, the production of fuel cells has gained importance in recent years with the effect of the needs created by the automotive sector. In this thesis, anode and cathode moisture levels were investigated by experimental study on the obtained efficiency of PEM fuel cell performance. Pure hydrogen and oxygen gases were used in the anode and cathode sections of the experiment, respectively. The test stand and a 6 cell 35 watt fuel cell with 9 cm2 active area were used for the test. Temperature and water accumulation, especially humidification in PEM fuel cells, can be achieved by keeping the hydrogen flow, oxygen flow and battery temperature under control. In the experimental study, the fuel cell humidification rate is gradually increased by keeping the flow and line temperature constant. 30% - 35% - 40% - 45% - 50% - 55% - 60% - 65% - 70% of the results obtained in the voltage, amperage and their effects on watts. As a result of the experimental study, humidification rate has a significant effect on the performance of PEM fuel cell. With the increased humidification temperature, the performance of the installed system increased significantly and nominal values were found. However, it is observed that the performance decreases after a certain period of time in the values higher than 60%.