Proton exchange membrane water electrolysis (PEMWE) is currently developed for the design of mature industrial-scale manufactures with commercialization. It needs reducing hydrogen production cost by lowering material cost and increasing operating current density. In engineering perspectives, the study of electrolytic performance during dynamic operation is crucial for PEMWE system management and process control. However, there is few multiphysics models of PEMWE considering transient behavior. The one-dimensional (1D) comprehensive dynamic multiphysics model allows to explore temporal transport phenomena in the PEMWE, and predict electrolytic performance. The 1D model is endorsed by the spatially lumped model from the literature. Changing values of structural and physical properties of porous transport layers (PTLs) and catalyst layers (CLs) allows the observation of their effects on the electrolytic performance and transport phenomena in two-phase flow regime. It suggests that the appropriate PTL properties, and CL fabrication method can lower the cost and remain high electrolytic performance.

中文翻译：

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质子交换膜电解水的多物理场建模：从稳态到动态行为

质子交换膜电解水 (PEMWE) 目前是为成熟的工业规模制造商的设计而开发的，具有商业化。它需要通过降低材料成本和提高工作电流密度来降低制氢成本。从工程的角度来看，动态运行期间的电解性能研究对于 PEMWE 系统管理和过程控制至关重要。然而，很少有考虑瞬态行为的 PEMWE 多物理场模型。一维 (1D) 综合动态多物理场模型允许探索 PEMWE 中的时间传输现象，并预测电解性能。一维模型得到了文献中的空间集总模型的认可。改变多孔传输层 (PTL) 和催化剂层 (CL) 的结构和物理性质的值，可以观察它们对两相流动状态下的电解性能和传输现象的影响。这表明适当的 PTL 性能和 CL 制造方法可以降低成本并保持较高的电解性能。