Abstract In this study, a three-dimensional, single-phase model has been established to investigate the performance of proton exchange membrane fuel cell (PEMFC) with serpentine flow fields. The model was operated in the temperature range of 333–353 K, the pressure range of 1–3 atm, gas diffusion layer (GDL) range of 0.3–0.6, both anode and cathode relative humidity range (RH) of 10–100%. The current density and power density of PEM fuel cell was measured according to these varying operation parameters. The V-I characteristic of PEMFC was obtained for these different values of input parameters. The numerical simulation was realized with a PEM fuel cell model based on the FLUENT computational fluid dynamics (CFD) software. The performance of a PEM fuel cell increases with the increase of operating pressure because of partial pressure and diffusivity of reactant gases resulting in decreasing the mass transport resistance. It is also found that temperature has an important effect on the performance of PEMFC by the results of study. Even though after exceeding a definite temperature cell performance decreases. The results showed that the maximum power density was reached with 0.6 GDL porosity, RHa = 100% and RHc = 10% and the value of pressure of 3 atm. Also simulation results were compared with the experimental data reported in literature and showed good agreement between the model and experimental results.

中文翻译：

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由计算流体动力学开发的单蛇形 PEM 燃料电池模型的评估

摘要 在这项研究中，建立了一个三维单相模型来研究具有蛇形流场的质子交换膜燃料电池（PEMFC）的性能。该模型在 333-353 K 的温度范围、1-3 个大气压的压力范围、0.3-0.6 的气体扩散层 (GDL) 范围、阳极和阴极的相对湿度范围 (RH) 为 10-100% 的条件下运行. PEM 燃料电池的电流密度和功率密度是根据这些不同的操作参数来测量的。对于这些不同的输入参数值，获得了 PEMFC 的 VI 特性。数值模拟是通过基于 FLUENT 计算流体动力学 (CFD) 软件的 PEM 燃料电池模型实现的。由于反应气体的分压和扩散性导致传质阻力降低，PEM 燃料电池的性能随着工作压力的增加而增加。研究结果还发现，温度对 PEMFC 的性能有重要影响。即使在超过一定温度后，电池性能也会下降。结果表明，当 GDL 孔隙率为 0.6、RHa = 100% 和 RHc = 10% 且压力值为 3 atm 时，达到了最大功率密度。模拟结果也与文献报道的实验数据进行了比较，表明模型与实验结果之间具有良好的一致性。研究结果还发现，温度对 PEMFC 的性能有重要影响。即使在超过一定温度后，电池性能也会下降。结果表明，当 GDL 孔隙率为 0.6、RHa = 100% 和 RHc = 10% 且压力值为 3 atm 时，达到了最大功率密度。模拟结果也与文献报道的实验数据进行了比较，表明模型与实验结果之间具有良好的一致性。研究结果还发现，温度对 PEMFC 的性能有重要影响。即使在超过一定温度后，电池性能也会下降。结果表明，当 GDL 孔隙率为 0.6、RHa = 100% 和 RHc = 10% 且压力值为 3 atm 时，达到了最大功率密度。模拟结果也与文献报道的实验数据进行了比较，表明模型与实验结果之间具有良好的一致性。