Freeze tolerant fuel cell power plant with a direct contact heat exchanger
    62.
    发明申请
    Freeze tolerant fuel cell power plant with a direct contact heat exchanger 失效
    具有直接接触热交换器的耐冷燃料电池发电厂

    公开(公告)号:US20050095477A1

    公开(公告)日:2005-05-05

    申请号:US10750347

    申请日:2003-12-31

    摘要: A power plant (10) includes at least one fuel cell (12), a coolant loop (18) including a freeze tolerant accumulator (22) for storing and separating a water immiscible fluid and water coolant, a direct contact heat exchanger (56) for mixing the water immiscible fluid and the water coolant within a mixing region (72) of the heat exchanger (56), a coolant pump (21) for circulating the coolant through the coolant loop (18), a radiator loop (84) for circulating the water immiscible fluid through the heat exchanger (56), a radiator (86) for removing heat from the coolant, and a direct contact heat exchanger by-pass system (200). The plant (10) utilizes the water immiscible fluid during steady-state operation to cool the fuel cell and during shut down of the plant to displace water from the fuel cell (12) to the freeze tolerant accumulator (22).

    摘要翻译: 发电厂(10)包括至少一个燃料电池(12),冷却剂回路(18),其包括用于储存和分离水不混溶的流体和水冷却剂的耐冻储存器(22),直接接触式热交换器(56) 用于在热交换器(56)的混合区域(72)内混合水不混溶流体和水冷却剂,用于使冷却剂循环通过冷却剂回路(18)的冷却剂泵(21),用于 使水不混溶的液体循环通过热交换器(56),用于从冷却剂除去热量的散热器(86)和直接接触热交换器旁通系统(200)。 工厂(10)在稳态操作期间利用水不混溶流体来冷却燃料电池并且在关闭工厂期间将水从燃料电池(12)移动到容许冷凝器(22)。

    Performance enhancing break-in method for a PEM fuel cell
    63.
    发明申请
    Performance enhancing break-in method for a PEM fuel cell 有权
    用于PEM燃料电池的性能提高突破方法

    公开(公告)号:US20050095472A1

    公开(公告)日:2005-05-05

    申请号:US10702181

    申请日:2003-11-05

    摘要: A performance enhancing break-in method for a proton exchange membrane (“PEM”) fuel cell (12) includes cycling potentials of an anode electrode (14) and a cathode electrode (16) from a first potential to a second potential and back to the first potential, and repeating the cycling for each electrode (14, 16) for at least two electrode cycles. The potential cycling may be achieved in a first embodiment by applying a direct current from a programmable direct current power source (80) to the electrodes. Alternatively the potential cycling may be achieved by varying reactants to which the anode and cathode electrodes (14, 16) are exposed.

    摘要翻译: 质子交换膜(“PEM”)燃料电池(12)的性能提高突破方法包括将阳极电极(14)和阴极电极(16)从第一电位到第二电位的循环电位并返回到 并且对每个电极(14,16)重复循环至少两个电极周期。 可以在第一实施例中通过将来自可编程直流电源(80)的直流施加到电极来实现电位循环。 或者,可以通过改变阳极和阴极电极(14,16)暴露的反应物来实现电位循环。