Fiber optic based in-situ diagnostics for PEM fuel cells
    1.
    发明授权
    Fiber optic based in-situ diagnostics for PEM fuel cells 失效
    用于PEM燃料电池的基于光纤的现场诊断

    公开(公告)号:US08268493B2

    公开(公告)日:2012-09-18

    申请号:US11807880

    申请日:2007-05-30

    IPC分类号: H01M8/06 H01M8/00 H01M8/04

    摘要: The present disclosure relates to in-situ, line-of-sight measurements of partial pressure and temperature associated with at least one flow channel of a fuel cell. Tunable diode laser absorption spectroscopy (TDLAS) is employed for measurements for which water transition states sensitive to temperature and partial pressure are utilized. Measurements are achievable for a fuel cell operating under both steady-state and time-varying load conditions. For steady-state operation, the water partial pressure increases with increasing current density on a cathode side of the fuel cell due to production of water by electrochemical reaction. Temperature in a gas phase remains relatively constant since the fuel cell housing temperature is controlled externally. For non-steady-state operation of the fuel cell through a time-varying current profile, the water partial pressure responds to the load changes rapidly and follows a current profile. The gas temperature varies in response to the dynamic loading and departures from steady-state conditions become more apparent at higher fuel cell operating temperatures.

    摘要翻译: 本公开涉及与燃料电池的至少一个流动通道相关联的分压和温度的原位视距测量。 可调谐二极管激光吸收光谱(TDLAS)用于测量对温度和分压敏感的水过渡状态。 对于在稳态和时变负载条件下工作的燃料电池,可以实现测量。 对于稳态操作,由于通过电化学反应生成水,水分压随燃料电池阴极侧的电流密度的增加而增加。 燃料电池外壳温度由外部控制,气相中的温度保持相对恒定。 对于燃料电池通过时变电流曲线的非稳态运行,水分压快速响应负载变化并遵循电流曲线。 气体温度响应于动态负载而变化,并且在更高的燃料电池工作温度下,从稳态条件的偏离变得更加明显。

    Apparatus and method for solution plasma spraying
    2.
    发明授权
    Apparatus and method for solution plasma spraying 有权
    溶液等离子体喷涂装置及方法

    公开(公告)号:US07112758B2

    公开(公告)日:2006-09-26

    申请号:US10755863

    申请日:2004-01-12

    IPC分类号: B23K10/00

    摘要: The apparatus for the thermal spray delivery of a precursor solution comprises a first solution reservoir, a second solution reservoir, singular or multiple atomizing liquid injector(s) disposed in fluid communication with the reservoirs, a flame source configured to direct a spray from the atomizing liquid injector to a substrate, and a thermal control device disposed in thermal communication with the substrate. The method of depositing a precursor solution at a substrate to form a coating comprises maintaining a substrate at a pre-selected temperature, delivering the precursor solution from a reservoir bank, atomizing the precursor solution, injecting the atomized precursor solution into a flame, and directing the flame to the substrate.

    摘要翻译: 用于热喷雾输送前体溶液的装置包括第一溶液储存器,第二溶液储存器,设置成与储存器流体连通的单个或多个雾化液体注射器,构造成将喷雾从雾化引导 液体注射器到基板,以及热控制装置,其与基板热连通地设置。 将前体溶液沉积在基底上以形成涂层的方法包括将基底保持在预先选定的温度,从储存库输送前体溶液,雾化前体溶液,将雾化的前体溶液注入火焰中,以及引导 火焰到底物。

    Microwave plasma apparatus and method for materials processing
    3.
    发明授权
    Microwave plasma apparatus and method for materials processing 有权
    微波等离子体装置及材料加工方法

    公开(公告)号:US08748785B2

    公开(公告)日:2014-06-10

    申请号:US12015842

    申请日:2008-01-17

    IPC分类号: H05B6/70 B23K10/00

    摘要: A microwave plasma apparatus for processing a material includes a plasma chamber, a microwave radiation source, and a waveguide guiding microwave radiation from the microwave radiation source to the plasma chamber. A process gas flows through the plasma chamber and the microwave radiation couples to the process gas to produce a plasma jet. A process material is introduced to the plasma chamber, becomes entrained in the plasma jet, and is thereby transformed to a stream of product material droplets or particles. The product material droplets or particles are substantially more uniform in size, velocity, temperature, and melt state than are droplets or particles produced by prior devices.

    摘要翻译: 用于处理材料的微波等离子体装置包括等离子体室,微波辐射源和引导从微波辐射源到等离子体室的微波辐射的波导。 工艺气体流过等离子体室,并且微波辐射耦合到工艺气体以产生等离子体射流。 将工艺材料引入到等离子体室中,夹带在等离子体射流中,从而转化为产物物料液滴或颗粒物流。 产品材料液滴或颗粒在尺寸,速度,温度和熔融状态方面比由现有装置产生的液滴或颗粒大致更均匀。

    MICROWAVE PLASMA APPARATUS AND METHOD FOR MATERIALS PROCESSING
    4.
    发明申请
    MICROWAVE PLASMA APPARATUS AND METHOD FOR MATERIALS PROCESSING 有权
    微波等离子体设备和材料加工方法

    公开(公告)号:US20080173641A1

    公开(公告)日:2008-07-24

    申请号:US12015842

    申请日:2008-01-17

    IPC分类号: H05B6/70

    摘要: A microwave plasma apparatus for processing a material includes a plasma chamber, a microwave radiation source, and a waveguide guiding microwave radiation from the microwave radiation source to the plasma chamber. A process gas flows through the plasma chamber and the microwave radiation couples to the process gas to produce a plasma jet. A process material is introduced to the plasma chamber, becomes entrained in the plasma jet, and is thereby transformed to a stream of product material droplets or particles. The product material droplets or particles are substantially more uniform in size, velocity, temperature, and melt state than are droplets or particles produced by prior devices.

    摘要翻译: 用于处理材料的微波等离子体装置包括等离子体室,微波辐射源和引导从微波辐射源到等离子体室的微波辐射的波导。 工艺气体流过等离子体室,并且微波辐射耦合到工艺气体以产生等离子体射流。 将工艺材料引入到等离子体室中,夹带在等离子体射流中,从而转化为产物物料液滴或颗粒物流。 产品材料液滴或颗粒在尺寸,速度,温度和熔融状态方面比由现有装置产生的液滴或颗粒大致更均匀。

    Fiber optic based in-situ diagnostics for PEM fuel cells
    5.
    发明申请
    Fiber optic based in-situ diagnostics for PEM fuel cells 失效
    用于PEM燃料电池的基于光纤的现场诊断

    公开(公告)号:US20080118783A1

    公开(公告)日:2008-05-22

    申请号:US11807880

    申请日:2007-05-30

    IPC分类号: H01M8/04 G01N21/00

    摘要: The present disclosure relates to in-situ, line-of-sight measurements of partial pressure and temperature associated with at least one flow channel of a fuel cell. Tunable diode laser absorption spectroscopy (TDLAS) is employed for measurements for which water transition states sensitive to temperature and partial pressure are utilized. Measurements are achievable for a fuel cell operating under both steady-state and time-varying load conditions. For steady-state operation, the water partial pressure increases with increasing current density on a cathode side of the fuel cell due to production of water by electrochemical reaction. Temperature in a gas phase remains relatively constant since the fuel cell housing temperature is controlled externally. For non-steady-state operation of the fuel cell through a time-varying current profile, the water partial pressure responds to the load changes rapidly and follows a current profile. The gas temperature varies in response to the dynamic loading and departures from steady-state conditions become more apparent at higher fuel cell operating temperatures.

    摘要翻译: 本公开涉及与燃料电池的至少一个流动通道相关联的分压和温度的原位视距测量。 可调谐二极管激光吸收光谱(TDLAS)用于测量对温度和分压敏感的水过渡状态。 对于在稳态和时变负载条件下工作的燃料电池,可以实现测量。 对于稳态操作,由于通过电化学反应生成水,水分压随燃料电池阴极侧的电流密度的增加而增加。 燃料电池外壳温度由外部控制,气相中的温度保持相对恒定。 对于燃料电池通过时变电流曲线的非稳态运行,水分压快速响应负载变化并遵循电流曲线。 气体温度响应于动态负载而变化,并且在更高的燃料电池工作温度下,从稳态条件的偏离变得更加明显。