阳极电催化剂在直接甲醇燃料电池的应用

直接甲醇燃料电池以燃料甲醇来源丰富，价格低廉，储存、携带方便而成为近年的研究热点。本文评述了阳极催化剂在直接甲醇燃料电池的研究概况，详细介绍了多种催化剂对甲醇氧化的作用。     

Studying on the increasing temperature in IT-SOFC： Effect of heat sources

The dimensions and the materials type limit the performance of fuel cell. The increase of the temperature in electrodes and electrolyte of the cell,is due to the over potential of activation (transfer of load),the over potential Ohmic (resistance of polarization),the over potential of reaction (heat released by the chemical reaction) and the over potential of diffusion. In this paper,we studied the thermo-electrical performance of an intermediate temperature solid oxide fuel cell (IT-SOFC) with electrode supported. The aim of this work is to study this increasing temperature of a single cell of an IT-SOFC under the influence of the following parameters: heat sources,functioning temperature and voltages of the cell,geometric configuration and materials type. The equation of energy in one dimension is numerically resolved by using the method of finite volumes. A computing program (FORTRAN) is developed locally for this purpose in order to obtain fields of temperature in every element of the cell.     

Iterative learning control of SOFC based on ARX identification model

This paper presents an application of iterative learning control (ILC) technique to the voltage control of solid oxide fuel cell (SOFC) stack. To meet the demands of the control system design, an autoregressive model with exogenous input (ARX) is established. Firstly, by regulating the variation of the hydrogen flow rate proportional to that of the current, the fuel utilization of the SOFC is kept within its admissible range. Then, based on the ARX model, three kinds of ILC controllers, i.e. P-, PI- and PD-type are designed to keep the voltage at a desired level. Simulation results demonstrate the potential of the ARX model applied to the control of the SOFC, and prove the excellence of the ILC controllers for the voltage control of the SOFC.     

电动汽车现状及未来

对电动汽车的关键技术进行了介绍,比较了电动汽车用各种型号电池的性能,总结了电动汽车用电动机需要满足的要求,及其动力总成的布局;对国内外电动汽车的现状进行了比较,并对其未来发展做了论述。     

燃料电池电极反应的书写

文章阐述了书写燃料电池电极反应的基本原则.     

给校车开辟一条“绿色”通道

今年9月1日，天津首批10条学校公交专线的53辆客车全部启动运营，至此，我国城市第一条直通校园的公交专线开通，成千上万的中小学生在新学年告别了骑车、挤公共汽车，或坐在爸妈自行车、摩托车后上学的历史，欢欢喜喜乘坐公交专线去上学。     

氢氧燃料电池实验改进的研究综述

燃料电池是高中化学重要的知识点,高中化学新课标将制作简单的燃料电池列为选择性必修课程学生必做实验。通过查阅资料,对关于中学氢氧燃料电池实验改进的文献进行收集、筛选并整理分析,为将来中学开展相关的演示实验和学生实验提供借鉴与参考。     

EV电池技术的研究展望

电池技术是制约EV产业化的瓶颈。文章简单介绍了电动汽车用电池技术的研究现状。并分析和评述了其广阔的发展前景。     

风窗曲面导线的包络过渡

本文通过对客车弧形风窗玻璃曲面导线的包络线过渡的分析，以得到两侧显得丰满圆滑并有较大的随意性的光滑过渡风窗，并以实例加以说明。