The performance of the Polymer Electrolyte Membrane (PEM) fuel cells is affected by the flow fields design and dimensions because this fields distribute gases to reactive sites, remove reaction products efficiently, and supply a path for electrons of electrical circuit. The present work is an experimental investigation conducted to study effects of using the bio-inspired flow fields configurations on performance of PEM fuel cells. The fuel cell used in the experiments is of PROTIUM- 150 type which has 6 cells, its rated power 150 W (10 A @ 15 V) and its voltage range from 15 V to 23 V. Two new flow fields (i.e. leaf veins, tree shape) inspired from biological system are proposed with active area of 9.84 cm². Graphite metal is used to produce bipolar plates contain these flow fields. The performance of the proposed fuel cells is recorded in power and polarization curves, comparing them with that of fuel cell with single-serpentine flow field. The results demonstrate that there is improvement in performance of PEM fuel cell as leaf veins flow field design is used. It is superiors the single – serpentine design by 5.12% and tree shape design by 3.75%.

聚合物电解质膜（PEM）燃料电池的性能受流场设计和尺寸的影响，因为该场将气体分配到反应位点，有效地去除反应产物，并为电路的电子提供路径。目前的工作是进行实验研究，以研究使用生物启发的流场配置对PEM燃料电池性能的影响。实验中使用的燃料电池为PROTIUM-150类型，具有6个电池，其额定功率为150 W（10 A @ 15 V），电压范围为15 V至23V。两个新的流场（即叶脉，提出了从生物系统中获得灵感的树木形状），其有效面积为9.84 cm ²。石墨金属用于生产包含这些流场的双极板。建议的燃料电池的性能记录在功率和极化曲线中，并将其与具有单蛇形流场的燃料电池进行比较。结果表明，使用叶脉流场设计可提高PEM燃料电池的性能。它优于单一的蛇形设计（5.12％）和树形设计（3.75％）。