Relative humidity control for a fuel cell
    2.
    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:US08158288B2

    公开(公告)日:2012-04-17

    申请号:US13092223

    申请日:2011-04-22

    IPC分类号: H01M8/06 H01M8/04

    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。

    Relative Humidity Control For A Fuel Cell
    3.
    发明申请
    Relative Humidity Control For A Fuel Cell 有权
    燃料电池相对湿度控制

    公开(公告)号:US20110207010A1

    公开(公告)日:2011-08-25

    申请号:US13092223

    申请日:2011-04-22

    IPC分类号: H01M8/04

    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。

    Fuel cell operation to minimize RH cycles to improve durability
    4.
    发明授权
    Fuel cell operation to minimize RH cycles to improve durability 有权
    燃料电池操作以最小化RH周期以提高耐久性

    公开(公告)号:US07597975B2

    公开(公告)日:2009-10-06

    申请号:US11434385

    申请日:2006-05-15

    IPC分类号: H01M8/00 H01M8/04 G05D22/00

    摘要: A fuel cell system that includes an over-arching algorithm for providing a strategy that reduces relative humidity cycling of the cathode outlet gas between wet and dry operation to extend the useful life of the membrane. The algorithm receives sensor signals indicative of operating parameters of the fuel cell system. The algorithm maintains a cathode exhaust gas relative humidity in a wet operating mode if the operating parameters of the fuel cell system are able to sustain the cathode gas relative humidity above a first predetermined value, and maintains the cathode exhaust gas relative humidity in a dry operating mode if the operating parameters of the fuel cell system are able to sustain the cathode gas relative humidity below a second predetermined value.

    摘要翻译: 一种燃料电池系统,其包括用于提供在湿和干运行之间减少阴极出口气体的相对湿度循环以延长膜的使用寿命的策略的叠加算法。 该算法接收指示燃料电池系统的操作参数的传感器信号。 如果燃料电池系统的操作参数能够将阴极气体的相对湿度维持在高于第一预定值的情况下,该算法在湿式操作模式中保持阴极排气相对湿度,并且将阴极废气相对湿度保持在干燥操作 如果燃料电池系统的操作参数能够将阴极气体相对湿度维持在低于第二预定值的情况下。

    ANODE ACCUMULATION TANK WITH HIGH NITROGEN CONCENTRATION BLEED FOR A FUEL CELL STACK FUEL DELIVERY SYSTEM
    5.
    发明申请
    ANODE ACCUMULATION TANK WITH HIGH NITROGEN CONCENTRATION BLEED FOR A FUEL CELL STACK FUEL DELIVERY SYSTEM 有权
    用于燃料电池堆栈燃料输送系统的高氮浓度的阳极累积罐

    公开(公告)号:US20080187793A1

    公开(公告)日:2008-08-07

    申请号:US11671017

    申请日:2007-02-05

    IPC分类号: H01M8/04

    摘要: A fuel cell system is described having a fuel cell stack including a PEM fuel cell having an anode and a cathode, the fuel cell stack further including an anode outlet and an anode inlet, a hydrogen storage device in communication with the anode inlet and configured to supply a hydrogen gas to the fuel cell stack, and an accumulation reservoir in communication with the anode outlet of the fuel cell stack. The accumulation reservoir is configured to accumulate a quantity of water and an exhaust stream including the hydrogen gas during a purge event and resupply the exhaust stream to the fuel cell stack after the purge event is complete. The accumulation reservoir can be a second fuel cell stack. A method of operating the fuel cell system is also provided.

    摘要翻译: 燃料电池系统被描述为具有包括具有阳极和阴极的PEM燃料电池的燃料电池堆,燃料电池堆还包括阳极出口和阳极入口,与阳极入口连通的氢存储装置, 向燃料电池堆供应氢气,以及与燃料电池堆的阳极出口连通的蓄积池。 累积储存器被配置为在净化事件期间累积一定量的水和包括氢气的废气流,并且在清除事件完成之后将废气流重新供应到燃料电池堆。 蓄积容器可以是第二燃料电池堆。 还提供了操作燃料电池系统的方法。

    Relative humidity control for a fuel cell
    6.
    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。

    Anode accumulation tank with high nitrogen concentration bleed for a fuel cell stack fuel delivery system
    7.
    发明授权
    Anode accumulation tank with high nitrogen concentration bleed for a fuel cell stack fuel delivery system 有权
    用于燃料电池堆燃料输送系统的具有高氮浓度的阳极积聚罐

    公开(公告)号:US07960062B2

    公开(公告)日:2011-06-14

    申请号:US11671017

    申请日:2007-02-05

    IPC分类号: H01M8/04

    摘要: A fuel cell system is described having a fuel cell stack including a PEM fuel cell having an anode and a cathode, the fuel cell stack further including an anode outlet and an anode inlet, a hydrogen storage device in communication with the anode inlet and configured to supply a hydrogen gas to the fuel cell stack, and an accumulation reservoir in communication with the anode outlet of the fuel cell stack. The accumulation reservoir is configured to accumulate a quantity of water and an exhaust stream including the hydrogen gas during a purge event and resupply the exhaust stream to the fuel cell stack after the purge event is complete. The accumulation reservoir can be a second fuel cell stack. A method of operating the fuel cell system is also provided.

    摘要翻译: 燃料电池系统被描述为具有包括具有阳极和阴极的PEM燃料电池的燃料电池堆,燃料电池堆还包括阳极出口和阳极入口,与阳极入口连通的氢存储装置, 向燃料电池堆供应氢气,以及与燃料电池堆的阳极出口连通的蓄积池。 累积储存器被配置为在净化事件期间累积一定量的水和包括氢气的废气流,并且在清除事件完成之后将废气流重新供应到燃料电池堆。 蓄积容器可以是第二燃料电池堆。 还提供了操作燃料电池系统的方法。

    Tapered anode header insert for startup hydrogen distribution
    9.
    发明授权
    Tapered anode header insert for startup hydrogen distribution 有权
    锥形阳极插头,用于启动氢气分配

    公开(公告)号:US08541145B2

    公开(公告)日:2013-09-24

    申请号:US12887792

    申请日:2010-09-22

    申请人: Steven G. Goebel

    发明人: Steven G. Goebel

    IPC分类号: H01M8/04 H01M8/24

    摘要: A fluid distribution insert adapted to be received within an inlet header of a fuel cell assembly is disclosed. The fluid distribution insert includes a wedge section having a first end and a second end. The wedge section forms a fluid flow path between a surface forming the inlet header and the wedge section, wherein the fluid flow path receives a fluid therein and delivers the fluid to a plurality of fuel cells of the fuel cell assembly. The wedge section minimizes a cross-sectional area of the fluid flow path adjacent the second end of the wedge section to maintain a substantially constant fluid velocity along a length of the inlet header.

    摘要翻译: 公开了一种适于容纳在燃料电池组件的入口集管内的流体分配插入件。 流体分配插入件包括具有第一端和第二端的楔形部分。 楔形部分形成在形成入口集管和楔形部分的表面之间的流体流动路径,其中流体流动路径在其中接收流体并将流体输送到燃料电池组件的多个燃料电池。 楔形部分最小化与楔形部分的第二端相邻的流体流动路径的横截面积,以沿着入口集管的长度保持基本恒定的流体速度。

    OPERATIONAL METHOD FOR A SIMPLIFIED FUEL CELL SYSTEM
    10.
    发明申请
    OPERATIONAL METHOD FOR A SIMPLIFIED FUEL CELL SYSTEM 有权
    简化燃料电池系统的运行方法

    公开(公告)号:US20130209907A1

    公开(公告)日:2013-08-15

    申请号:US13397458

    申请日:2012-02-15

    申请人: Steven G. Goebel

    发明人: Steven G. Goebel

    IPC分类号: H01M8/04

    摘要: A system and method for reducing the corrosive effects of an air/hydrogen front in a fuel cell stack. The method includes shutting down the fuel cell stack and then initiating a hydrogen sustaining process where hydrogen is periodically injected into an anode side of the fuel cell stack while the stack is shut down for a predetermined period of time. The method determines that the hydrogen sustaining process has ended, and then purges the anode side and a cathode side of the fuel cell stack with air after the hydrogen sustaining process has ended and the stack is still shut-down.

    摘要翻译: 一种用于降低燃料电池堆中空气/氢气前沿的腐蚀作用的系统和方法。 该方法包括关闭燃料电池堆,然后启动氢气维持过程,其中在将堆叠关闭的同时将燃料电池堆的阳极侧周期性地注入氢气一段预定的时间。 该方法确定氢持续处理已经结束,然后在氢维持处理结束并且堆栈仍然停止之后用空气吹扫燃料电池堆的阳极侧和阴极侧。