Experimental Characterization and Correlation of a Triangular Channel Geometry PEM Fuel Cell at Different Operating Conditions

摘要

In this study, the performance of a 10 W PEM fuel cell with 25 cm~2 active area and Nafion 117 as membrane with 0.004 g/cm~2 platinum for the anode and cathode and triangular channel geometry is investigated experimentally. The effect of some important parameters such as input oxygen and hydrogen temperatures (T_(O_2), T_(H_2)), cell temperature (T_(cell)), input pressure (P), and oxygen (Q_(O_2)) and hydrogen flow rates (Q_(H_2)) investigated on the performance of the cell. An experimental equation is offered with least square method to correlate the data for the polarization curve. The results show that with increasing the input temperature of the oxygen and hydrogen from 45 to 65 ℃ and 40 to 60 ℃, the performance of the cell increases about 20 %. Also the results show that with increasing the cell temperature from 45 to 65 ℃, the performance of the cell increases about 18 %.