MEMBRANE PERMEATION ADJUSTMENT IN PEM FUEL CELL
    31.
    发明申请
    MEMBRANE PERMEATION ADJUSTMENT IN PEM FUEL CELL 有权
    PEM燃料电池膜渗透调整

    公开(公告)号:US20120052408A1

    公开(公告)日:2012-03-01

    申请号:US12868487

    申请日:2010-08-25

    IPC分类号: H01M8/04 G06G7/58

    摘要: A system and method for correcting an estimation of nitrogen in an anode side of a fuel cell stack. The system includes a fuel cell stack and a pressure sensor for measuring pressure in an anode sub-system. The system also includes a controller configured to control the estimation of nitrogen permeation from the cathode side to the anode side of the stack, where the controller determines if the pressure in the anode sub-system equilibrates with atmospheric pressure in a shorter period of time after shutdown compared to the time necessary for the anode sub-system to reach approximately atmospheric pressure after a previous shutdown or calibrated time value, and corrects the estimation of nitrogen in the anode side of the stack if the pressure equilibrates in a shorter period of time.

    摘要翻译: 一种用于校正燃料电池堆的阳极侧的氮的估计的系统和方法。 该系统包括用于测量阳极子系统中的压力的​​燃料电池堆和压力传感器。 该系统还包括控制器,其被配置为控制从堆的阴极侧到阳极侧的氮气渗透的估计,其中控制器确定阳极子系统中的压力是否在大气压力之后在更短的时间段内平衡 与阳极子系统在先前停机或校准时间值之后达到大致压力所需的时间相比,如果压力在更短的时间内平衡,则校正堆叠阳极侧的氮气的估计。

    Relative humidity control for a fuel cell
    32.
    发明授权
    Relative humidity control for a fuel cell 有权
    燃料电池的相对湿度控制

    公开(公告)号:US07976991B2

    公开(公告)日:2011-07-12

    申请号:US11130825

    申请日:2005-05-17

    IPC分类号: H01M8/04 H01M8/00

    摘要: A model uses various operating characteristics of a fuel cell to predict the relative humidity profile that is occurring within the fuel cell as a function of the reaction progress. The model is used to predict the relative humidity profile that will occur in response to changes to one or more of the operating characteristics of the fuel cell. A high frequency resistance of the fuel cell can also be used as a measure that is indicative of the humidity within the fuel cell. The model and/or the high frequency resistance can be used in a closed-loop feedback system to control the operation of the fuel cell to maintain the humidification of the MEA and fuel cells within a desired range to achieve a desired fuel cell performance.

    摘要翻译: 模型使用燃料电池的各种操作特性来预测在燃料电池内发生的相对湿度分布作为反应进程的函数。 该模型用于预测响应于燃料电池的一个或多个操作特性的变化而发生的相对湿度分布。 燃料电池的高频电阻也可以用作指示燃料电池内的湿度的措施。 该模型和/或高频阻抗可以用在闭环反馈系统中以控制燃料电池的操作,以将MEA和燃料电池的加湿保持在期望的范围内,以实现期望的燃料电池性能。

    Dynamic fuel processor mechanization and control
    38.
    发明授权
    Dynamic fuel processor mechanization and control 失效
    动态燃油加工机械化与控制

    公开(公告)号:US06783879B2

    公开(公告)日:2004-08-31

    申请号:US10044335

    申请日:2002-01-11

    IPC分类号: H01M804

    摘要: A fuel processor control system for a fuel cell stack includes water and fuel metering devices that control water and fuel provided to the fuel processor. An air flow rate sensor generates an air flow rate signal based on air flowing from a compressor to the fuel processor. A valve is located between the fuel processor and the fuel cell stack. A controller controls the valve and the water and fuel metering devices based on the air flow rate sensor. Other feedback signals such as stack voltage, stack cell voltage variation, pressure differential across the valve, and mass flow rate between the valve and the fuel cell stack can augment or be substituted for the air flow rate feedback signal. The fuel processor can be a partial oxidation reformer a steam reforming reactor, an auto thermal reformer or any combination thereof. The system may also include a water as shift reactor and a preferential oxidation reactor for carbon monoxide reduction.

    摘要翻译: 用于燃料电池堆的燃料处理器控制系统包括控制供应给燃料处理器的水和燃料的水和燃料计量装置。 空气流量传感器基于从压缩机流向燃料处理器的空气产生空气流量信号。 阀位于燃料处理器和燃料电池堆之间。 控制器基于空气流量传感器控制阀和水和燃料计量装置。 诸如堆叠电压,堆叠电池电压变化,阀门两端的压差以及阀门和燃料电池堆之间的质量流量之类的其它反馈信号可以增加或替代空气流量反馈信号。 燃料处理器可以是部分氧化重整器,蒸汽重整反应器,自动热重整器或其任何组合。 该系统还可以包括作为转化反应器的水和用于一氧化碳还原的优先氧化反应器。

    Membrane permeation adjustment in PEM fuel cell
    39.
    发明授权
    Membrane permeation adjustment in PEM fuel cell 有权
    PEM燃料电池膜渗透调节

    公开(公告)号:US08507141B2

    公开(公告)日:2013-08-13

    申请号:US12868487

    申请日:2010-08-25

    IPC分类号: H01M8/04

    摘要: A system and method for correcting an estimation of nitrogen in an anode side of a fuel cell stack. The system includes a fuel cell stack and a pressure sensor for measuring pressure in an anode sub-system. The system also includes a controller configured to control the estimation of nitrogen permeation from the cathode side to the anode side of the stack, where the controller determines if the pressure in the anode sub-system equilibrates with atmospheric pressure in a shorter period of time after shutdown compared to the time necessary for the anode sub-system to reach approximately atmospheric pressure after a previous shutdown or calibrated time value, and corrects the estimation of nitrogen in the anode side of the stack if the pressure equilibrates in a shorter period of time.

    摘要翻译: 一种用于校正燃料电池堆的阳极侧的氮的估计的系统和方法。 该系统包括用于测量阳极子系统中的压力的​​燃料电池堆和压力传感器。 该系统还包括控制器,其被配置为控制从堆的阴极侧到阳极侧的氮气渗透的估计,其中控制器确定阳极子系统中的压力是否在大气压力之后在更短的时间段内平衡 与阳极子系统在先前停机或校准时间值之后达到大致压力所需的时间相比,如果压力在更短的时间内平衡,则校正堆叠阳极侧的氮气的估计。

    Passive water drain
    40.
    发明授权
    Passive water drain 有权
    被动排水

    公开(公告)号:US08431278B2

    公开(公告)日:2013-04-30

    申请号:US12701864

    申请日:2010-02-08

    IPC分类号: H01M8/04 F16T1/34

    摘要: A passive water drain for removal of water from a fuel cell system is disclosed, the drain including a main body having a cavity formed therein, an interior element, and a hydrophilic porous media. The passive water drain is adapted to simplify the anode reactant recycler, eliminate the need for bypass valve systems used to remove water from the cathode exhaust, and eliminate the need for condensate draining systems used for compressed air entering the cathode.

    摘要翻译: 公开了一种用于从燃料电池系统去除水的被动排水口,排水口包括其中形成有空腔的主体,内部元件和亲水性多孔介质。 被动排水装置适用于简化阳极反应物再循环器,不需要用于从阴极排气口移除水的旁路阀系统,并且不需要用于进入阴极的压缩空气的冷凝水排放系统。