英译汉：We propose in this work a simple model for atmospheric or low-pressure PEM water electrolysers, which allows for simulating the electrochemical, thermal and H2 output flow behaviours with enough precision for engineering applications. The model has been validated by good agreement with experimental measurements performed in two different electrolysers. The electrochemical submodel allows for obtaining the operating stack voltage from the input current and the stack temperature conditions. After non-linear fitting and statistical analysis from experimental data we conclude that the electrochemical submodel can be extrapolated for any PEM water electrolyser knowing two parameters with physical meaning: activation energy of the “water oxidation” for the anode electrocatalyst and the activation energy for proton transport in the solid polymer membrane. This submodel was validated with experimental polarisation curves at different temperatures from two different PEM water electrolysers. The standard error of the model was less than 0.03. The results showed that the worst values of the estimation were obtained below 50 C, indicating that the assumption of constant anode charge transfer coefficient is not true at lower temperature, which is in accordance with recent results. In order to complete the electrochemical submodel, a practical methodology is presented here to obtain simple semi-empirical submodels for the H2 production and thermal behaviours for this kind of electrolysers. Both submodels are also discussed based on the experimental validations.
理解问题英译汉：We propose in this work a simple model for atmospheric or low-pressure PEM water electrolysers, which allows for simulating the electrochemical, thermal and H2 output flow behaviours with enough precision for engineering applications. The model has been validated by good agreement with experimental measurements performed in two different electrolysers. The electrochemical submodel allows for obtaining the operating stack voltage from the input current and the stack temperature conditions. After non-linear fitting and statistical analysis from experimental data we conclude that the electrochemical submodel can be extrapolated for any PEM water electrolyser knowing two parameters with physical meaning: activation energy of the “water oxidation” for the anode electrocatalyst and the activation energy for proton transport in the solid polymer membrane. This submodel was validated with experimental polarisation curves at different temperatures from two different PEM water electrolysers. The standard error of the model was less than 0.03. The results showed that the worst values of the estimation were obtained below 50 C, indicating that the assumption of constant anode charge transfer coefficient is not true at lower temperature, which is in accordance with recent results. In order to complete the electrochemical submodel, a practical methodology is presented here to obtain simple semi-empirical submodels for the H2 production and thermal behaviours for this kind of electrolysers. Both submodels are also discussed based on the experimental validations.
已完成理解「英译汉：We propose in this work a simple model for atmospheric or low-pressure PEM water electrolysers, which allows for simulating the electrochemical, thermal and H2 output flow behaviours with enough precision for engineering applications. The model has been validated by good agreement with experimental measurements performed in two different electrolysers. The electrochemical submodel allows for obtaining the operating stack voltage from the input current and the stack temperature conditions. After non-linear fitting and statistical analysis from experimental data we conclude that the electrochemical submodel can be extrapolated for any PEM water electrolyser knowing two parameters with physical meaning: activation energy of the “water oxidation” for the anode electrocatalyst and the activation energy for proton transport in the solid polymer membrane. This submodel was validated with experimental polarisation curves at different temperatures from two different PEM water electrolysers. The standard error of the model was less than 0.03. The results showed that the worst values of the estimation were obtained below 50 C, indicating that the assumption of constant anode charge transfer coefficient is not true at lower temperature, which is in accordance with recent results. In order to complete the electrochemical submodel, a practical methodology is presented here to obtain simple semi-empirical submodels for the H2 production and thermal behaviours for this kind of electrolysers. Both submodels are also discussed based on the experimental validations.」
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我们在这项工作中提出了一种用于大气或低压PEM水电解槽的简单模型，该模型可以模拟电化学、热和H2输出流量行为，具有足够的精度，可用于工程应用。该模型已通过与在两个不同电解槽中进行的实验测量结果的良好一致性得到验证。电化学子模型允许根据输入电流和堆栈温度条件获得操作堆栈电压。通过对实验数据的非线性拟合和统计分析，我们得出结论，电化学子模型可以通过知道两个具有物理意义的参数来外推到任何PEM水电解槽：阳极电催化剂的“水氧化”活化能和固体聚合物膜中质子传输的活化能。该子模型通过两个不同PEM水电解槽在不同温度下的实验极化曲线得到验证。模型的标准误差小于0.03。结果显示，估计的最差值在低于50 C时获得，表明在较低温度下阳极电荷转移系数的恒定假设不成立，这与最近的结果一致。为了完善电化学子模型，这里提出了一种实用的方法来获得这种电解槽的H2生产和热行为的简单半经验子模型。这两个子模型也基于实验验证进行了讨论。