为了研究阳极压降对质子交换膜燃料电池(PEMFC)发电效率的影响，提出

In order to study the influence of anode pressure drop on the power generation efficiency of proton exchange membrane fuel cells (PEMFC), a numerical model of the power generation efficiency (GE) of proton exchange membrane fuel cells was proposed; the GE model is based on the water transport of MEA through ion conductivity This physical parameter is used to connect the characteristic relationship between relative humidity, anode voltage drop and power generation efficiency. The model is imported into the Fluent simulation software through a custom function (UDF) for modeling, and the Fluent simulation software is used to complete different operations Simulation calculation of battery stack by operating parameters. Compare and analyze GE model, Fluent model and test data. The results show that the GE model is accurate when the battery operating temperature is 60 ℃, the working range of current density is 0-400 mA/cm2, the stoichiometric ratio of yin and yang is 2:1, and the relative humidity of the intake air of yin and yang is 100%. There is only 1.34% error between the power and the test data; when the power density increases to 47W·cm-2, the maximum power generation efficiency is 45.338%.

In order to study the effect of anode pressure drop on the power generation efficiency of proton exchange membrane fuel cell (PEMFC), a numerical model of the efficiency of proton exchange membrane fuel cell power generation (GE) is proposed, which is based on the physical parameter of ion conductivity based on MEA water transmission. The characteristic relationship between relative humidity, anode pressure drop and power generation efficiency is linked, the model is imported into TheFluent simulation software by custom function (UDF), and the simulation calculation of the battery stack is completed by using the Fluent simulation software. A comparative analysis of GE models, Fluent models, and experimental data. The results show that when the operating temperature of the battery is 60 degrees C, the operating range of the current density is 0-400 mA/cm2, the chemical metering ratio of yin and yang is 2:1, and the relative humidity of the air infested in yin and yang is 100%, there is only 1.34% error between the accuracy of the GE model and the test data, and when the power density is increased to 47W cm-2, the maximum power generation efficiency is 45.338%.

In order to study the effect of anode voltage drop on the power generation efficiency of proton exchange membrane fuel cell (PEMFC), a numerical model of power generation efficiency (GE) of proton exchange membrane fuel cell (PEMFC) was proposed. The Ge model was based on the water transport of MEA, and the characteristic relationship between relative humidity, anode voltage drop and power generation efficiency was linked by the physical parameter of ionic conductivity. The UDF was used to describe the relationship between the relative humidity, anode voltage drop and power generation efficiency The model is imported into fluent simulation software for modeling, and the simulation calculation of battery stack under different operating conditions is completed by using fluent simulation software. Ge model, fluent model and experimental data were compared and analyzed. The results show that when the relative power density of the battery is between 1% and 2.4% when the power density is between 1% and 2.4% of the power density of the cathode and anode, the maximum power generation error is between 1% and 2% when the power density of the cathode and anode is increased from 1% to 4.4 cm 2.<br>