为了研究燃料利用率对质子交换膜燃料电池(PEMFC)发电效率的影响，本

In order to study the influence of fuel utilization on the power generation efficiency of proton exchange membrane fuel cells (PEMFC), this paper firstly analyzes the influence of operating conditions on fuel utilization during the water transfer process in PEMFC; secondly, the power generation efficiency of proton exchange membrane fuel cells ( GE)'s numerical model, established a PEMFC test system to test the performance of the battery stack, and finally got the specific value of power generation efficiency. The GE model theoretically explores the relationship between relevant operating condition parameters such as water content, relative humidity, and pressure drop, and fuel utilization and power generation efficiency. The model is imported into a user-defined function (UDF) for modeling. The Fluent simulation software completes the simulation calculation of the battery stack under different operating conditions. A comparative analysis of the GE model, the Fluent model and the experimental data shows that when the battery operating temperature is 60 ℃, the current density operating range is 0-400 mA/cm2, and the relative humidity of the air intake at both the Yin and Yang levels is 100%, There is only a 1.34% error between the accuracy of the GE model and the test data; 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 fuel utilization on the efficiency of proton exchange membrane fuel cell (PEMFC), this paper first analyzes the effect of operating conditions on fuel utilization rate during water transfer in PEMFC, secondly, the numerical model of the efficiency of proton exchange membrane fuel cell power generation (GE) is proposed, the pemFC test system is established to test the performance of the battery stack, and finally the specific value of power generation efficiency is obtained. The GE model theoretically explores the characteristic relationship between water content, relative humidity and pressure drop, and fuel utilization and power generation efficiency, and imports the model into custom functions (UDF) to model, and uses TheFluent simulation software to complete the simulation calculation of the battery stack under different operating conditions. A comparative analysis of THE model, Fluent model and test data shows that when the battery operating temperature is 60 degrees C, the current density is 0-400 mA/cm2, and the relative humidity of the yin and yang air infested is 100%, there is only 1.34% error between the GE model accuracy and the test data, and when the power density increases to 47W cm-2, the maximum power generation efficiency is 45.338%.

In order to study the influence of fuel efficiency on the power generation efficiency of proton exchange membrane fuel cell (PEMFC), the influence of operating conditions on fuel efficiency in PEMFC during water transfer process was analyzed firstly. Secondly, a numerical model of power generation efficiency (GE) of proton exchange membrane fuel cell (PEMFC) was proposed. The experimental system of PEMFC was established to test the performance of PEMFC stack Volume value. The Ge model theoretically explores the relationship between water content, relative humidity, pressure drop and other operating parameters with fuel efficiency and power generation efficiency. The model is imported into UDF for modeling. Fluent simulation software is used to complete the simulation calculation of battery stack under different operating conditions. The Ge model, fluent model and test data were compared and analyzed. The results show that when the operating temperature of the battery is 60 ℃, the operating range of the current density is 0-400 MA / cm2, and the relative humidity of the inlet air of the two stages is 100%, there is only 1.34% error between the accuracy of the Ge model and the test data; when the power density increases to 47 w · cm-2, the maximum power generation efficiency is 45.338%<br>