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双语推荐:质子交换膜燃料电池

质子交换膜燃料电池(PEMFC)系统具有明显的非线性和时变的特质,因此质子交换膜燃料电池的建模和优化控制问题是研究的重点。通过建立单体质子交换膜燃料电池的近似线性动态模型,并在此模型基础上,设计了基于双启发式动态规划(DHP)的质子交换膜燃料电池神经网络优化控制器。仿真结果表明,此近似线性模型有效地简化了非线性和时变的特质,在此模型基础上所设计的神经网络控制器具有更好的控制效果和控制精度。
Proton exchange membrane fuel cell(PEMFC) system had obvious nonlinear and time-varying characteristics, so the study of proton exchange membrane fuel cellsystem neural network optimization control was necessary. The approximation linear dynamic model of a single proton exchange membrane fuel cellwas established. Then based on the approximation linear model, the optimization control er based on the dual heuristic dynamic programming (DHP) of was designed. Simulation results show that the nonlinear and time-varying characteristics are effectively simplified by this approximate linear model, and the proposed neural network control er has better control effect and control accuracy.
近年来,质子交换膜燃料电池(PEMFC)以其环保特性受到越来越多的关注。在正确操作下,维护燃料电池系统的良好运行非常重要。研究建立了质子交换膜燃料电池的动态模型,并设计了质子交换膜燃料电池神经网络(NN)控制器。仿真结果表明,所提出的神经网络控制器鲁棒性强,其构成的闭环控制系统静动态性能良好,达到了恒功率输出的要求。
In recent years, proton exchange membrane fuel cell ( PEMFC ) has been attracted more and more attention because of its environmental characteristics. Maintaining good operation of fuel cell system under correct operating conditions is important. Through researching, the dynamic model of PEMFC has been established, and the neural network ( NN ) control system of PEMFC that satisfies requirement of constant power output has been designed. The results of simulation show that the robustness of the proposed NN controller is very good, and the static and dynamic characristics of the closed-loop NN control system is superior.
质子交换膜燃料电池(PEMFC)具有使用寿命长,比功率和比能量高,室温下启动速度快等优点,已经成为燃料电池行业研究的热点.如何制得低成本高效率且使用寿命长的双极板是质子交换膜燃料电池商业化的关键.本文归纳了国内外有关质子交换膜燃料电池双极板材料的研究进展,并重点综述了金属双极板的优缺点和表面改性技术.
Research on proton exchange membrane fuel cells (PEMFC) is a hot issue in the field of fuel cell . PEM FC possess normal characteristics (high efficiency in energy transformation ,environmental friendli‐ness ,broad application ,and so on) of fuel cells ,as well as many prominent properties such as easy start‐up at room temperature ,longevity ,high specific power and energy .Development of low‐cost and high‐ef‐ficient long‐life bipolar plates is crucial to the realization of commercial value of PEMFC .This paper is the conclusion of worldwide research on bipolar plate materials .It has mainly reviewed studies on the surface modification methods as well as the merits and defects of metallic bipolar plates .

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人们对质子交换膜燃料电池中的磺化聚芳醚砜质子交换膜进行了深入的研究。本文按磺化聚芳醚砜质子交换膜的结构进行分类,讨论了磺化聚芳醚砜质子交换膜结构与性能之间的关系,综述了磺化聚芳醚砜质子交换膜的最新研究进展。
Sulfonated Polyarylene ether sulfone proton exchange membrane used for proton exchange membrane fuel cells has been researched systematically in the past decade. The relationship between the membrane structure and property of sulfonated polyarylene ether sulfone is especially discussed. The latest research progress of sulfonated polyarylene ether sulfone membrane is summarized in this paper.

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建立高温质子交换膜燃料电池的机理模型可以加深对其内部传递现象和反应机理的认识,同时可以预测不同参数下燃料电池的性能,对优化电池的操作条件和结构参数等具有重要的指导意义。对现有的高温质子交换膜燃料电池机理模型进行了评述,分析了基于磷酸掺杂聚苯并咪唑(H3PO4/PBI)不同维数的稳态和动态模型及基于其他复合模型的优点和不足,并指出了高温质子交换膜燃料电池模型的研究方向。
Developing mechanism model for high-temperature proton exchange membrane fuel cell can help us to understand the transfer phenomena and reaction mechanism, to predict the performance of fuel cells under different parameters and optimize the operational condition and structure parameters of fuel cells. In this paper, different types of mathematical models for high-temperature proton exchange membrane fuel cell were compared and analyzed. The advantages and disadvantages of various models of different dimensional steady-state and dynamic models using phosphoric acid-doped polybenzimidazole membrane (PBI/H3PO4) and other membranes were analyzed. Finally, the research direction of the HT-PEMFC model was pointed out.

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简要介绍了有实用价值的燃料电池质子交换膜的性能要求.阐述了最新研究的一些聚合物质子交换膜和复合质子交换膜的研究动态及这些的性质和其影响因素.并根据目前的研究动态,介绍了质子交换膜的研究趋势.
The requests of practical proton exchange membranes for fuel cells were introduced briefly: Some polymer proton exchange membranes and composite proton exchange membranes up to date are narrated, and the character and influencing factors of these membranes also discussed;Based on its recent research, the trend of the development of proton exchange membranes is introduced.

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质子交换膜(PEM)燃料电池中气体扩散层(GDL)的孔隙率对整个燃料电池的性能有着重要影响,而封装力是影响燃料电池GDL孔隙率的关键因素之一。采用实验和有限元模拟相结合的方法研究封装力对气体扩散层孔隙率的影响。利用压汞仪测试气体扩散层的平均孔隙率,基于有限元方法建立质子交换膜燃料电池的双极板和气体扩散层的接触模型,研究质子交换膜燃料电池中不同的封装力下气体扩散层的孔隙率变化情况。结果表明:气体扩散层孔隙率的变化沿接触中心线左右对称,接触区域孔隙率分布较为均匀,随着封装力的增加,气体扩散层孔隙率逐渐降低;而未接触区域孔隙率变化不明显。气体扩散层孔隙率有限元模拟结果与实验测试结果相吻合。
The porosity of the gas diffusion layer (GDL) in proton exchange membrane (PEM) fuel cellhas a significant effect on PEM fuel cellperformance. Assembly force was critical to the porosity of the GDL. Based on both experimental and finite element methods, the influence of assembly force on porosity of the GDL was studied. The mercury porosimeter was employed to measure the average porosity of the GDL. The contact model between bipolar plate (BPP) and GDL of the PEM fuel cellwas established, and finite element method (FEM) was used to study the variation of porosity of the GDL applied with various assembly forces. The simulated results show that the variation of porosity of the GDL was symmetrical along with the center line of the contact area. The porosity distribution in GDL was uniform at the area where GDL contacted with BPP under the applied assembly force. And the porosity of the GDL was decreased gradual y with the increase of the assembly force. However, the porosity was

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全氟离子交换膜(PFIEM)是质子交换燃料电池和离子氯碱工业的关键材料,在燃料电池、氯碱行业、钒电池等方面应用广泛,是目前无可替代的关键部件之一。它的结构与性能直接关系着电池或电解槽的性能好坏。热处理作为一种传统工艺过程,简便易行,广泛用于全氟离子交换膜性能的研究。从离子的不同性能出发,分别阐述了热处理对质子电导率、甲醇透过率、力学性能、选择渗透性等性能的影响,并总结了目前这方面研究的特点与发展方向。
The perfluorinated ion exchange membrane (PFIEM)was the crucial materials in the proton exchange membrane fuel cell (PEMFC)and chlor-alkali industry,which widely used in the fuel cell,chlor-alkali indus-try,vanadium battery,etc.As one of the key components,the structure and properties of the PFIEM deter-mine the performance of the battery or cell.Annealing was a kind of traditional technological process,which was simple and convenient,being widely used in the research of the PFIEM performance.In this review,accord-ing to different properties of the ionic membrane,we mainly outline the annealing effect of perfluorinated ion exchange membranes on the proton conductivity,methanol permeability,mechanical properties,permselectivi-ty,etc.,respectively.The characteristics of the research at present and developing directionare summarized.

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从CFD流体计算软件 Fluent的求解机理、燃料电池问题基本设置、编写用户 UDF、程序调试等方面,详细研究了如何利用Fluent软件来数值模拟质子交换膜燃料电池的流场、电流密度场及质量组分分布。
The-numerical-simulation-is-one-of-important-methods-to-study-the-polymer-electrolyte-membrane-fuel-cells-(PEM-FC-)-.-Fluent-solution-process-,PEM-FC-basic-settings-,w-riting-user-defining-functions-and-program-debug-and-so-on-are-discussed-.This-paper-introduces-how-to-simulate-PEMFC’s-flow-field-,species-field-,and-current-density-field-in-details-.

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能源危机和环境污染是车载燃料电池发展的主要驱动力。电催化剂的性能和成本是制约其实现商业化的关键因素之一。目前,车载燃料电池用催化剂主要是铂(Pt)基催化剂,文章对质子交换膜燃料电池、直接甲醇燃料电池和甲酸燃料电池三种车载燃料电池用铂基催化剂的研究进行综述,并对其存在的问题进行了分析和讨论。
Energy crisis and environmental pollution are the main driving forces for the development of automotive fuel cell. However, the performance and cost of electrocatalyst become one of the key factors, which limit the large scale commercial application of fuel cells. So far, Pt-based catalysts have been mainly used for fuel cell. Three kinds of automotive fuel cell electrocatalysts for proton exchange membrane fuel cell, direct methanol fuel cell and formic acid fuel cell are discussed in detail, and their problems and solutions are analyzed.

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