SOLID-OXIDE FUEL CELL SYSTEM, AND START-UP CONTROL METHOD THEREFOR
    7.
    发明公开
    SOLID-OXIDE FUEL CELL SYSTEM, AND START-UP CONTROL METHOD THEREFOR 审中-公开
    固体氧化物燃料电池,并开始其控制方法

    公开(公告)号:EP2779290A4

    公开(公告)日:2015-09-09

    申请号:EP12846992

    申请日:2012-11-06

    摘要: An object of the invention is to improve durability of a SOFC system and secure favorable power generation performance during the actual useful service period of the system. In the SOFC system, the fuel gas flow rate to the fuel cell stack at the time of the start of start-up is set to the maximum fuel gas flow rate at the time of start-up control that is less than or equal to 1.3 times the maximum fuel gas flow rate Fg MAX at the time of the rated power generation, the fuel gas flow rate F2 until the temperature T of the fuel cell stack reaches the first temperature T1 after start of the temperature increase, at which the reduction of the oxidized Ni in the fuel cell stack is performed, is set to be less than or equal to F1, and thereafter, until the start of the power generation, fuel gas flow rate F3 is further reduced from F2, and the average fuel gas flow rate F AVE from the start of start-up control to the start of the power generation is set to be equal to or greater than 0.6 times the average fuel gas flow rate Fg AVE at the time of the rated power generation.

    METHOD AND DEVICE FOR STOPPING SOLID-OXIDE FUEL CELL SYSTEM
    8.
    发明公开
    METHOD AND DEVICE FOR STOPPING SOLID-OXIDE FUEL CELL SYSTEM 审中-公开
    的方法和装置,用于保持固体氧化物燃料电池

    公开(公告)号:EP2779294A4

    公开(公告)日:2015-08-19

    申请号:EP12848218

    申请日:2012-11-06

    摘要: A preferred stopping method for a SOFC system of the invention leads to an improvement in durability. The SOFC system houses a reformer (6) and a fuel cell stack (10) in a module case (2). Each cell (20) forming the fuel cell stack (10) is made of a porous material having a composition containing at least nickel metal, includes a cell support having a gas passage (22) through which the fuel gas from the reformer (6) flows from an lower end to an upper end on the inside thereof, and the cell (20) is formed by stacking a fuel electrode layer, a solid oxide electrolyte layer, and an air electrode layer on the cell support, and the excessive fuel gas is combusted at the upper end of the gas passage (22). Here, after the power generation stops, until the temperature of the maximum temperature portion (the upper end) of the fuel cell stack (10) falls below the minimum oxidation temperature of the nickel metal, the supply amount of the fuel gas to the fuel cell stack (10) is controlled in terms of a heat flow rate within a range of 0.1 to 0.5 times that during the system rated power generation.

    FUEL CELL SYSTEM AND METHOD FOR CONTROLLING FUEL CELL SYSTEM
    10.
    发明公开
    FUEL CELL SYSTEM AND METHOD FOR CONTROLLING FUEL CELL SYSTEM 有权
    燃料电池系统和用于控制燃料电池系统的方法

    公开(公告)号:EP2863462A1

    公开(公告)日:2015-04-22

    申请号:EP13804929.1

    申请日:2013-04-05

    发明人: MIWA, Hiromichi

    IPC分类号: H01M8/04 H01M8/06 H01M8/12

    摘要: To provide a configuration such that cooling capacity of a first heat exchanger (19) for cooling a reformed gas introduced into an inlet of a circulation pump (14) is increased as an output of a fuel cell (11) increases. With this configuration, a characteristic is provided such that an inlet temperature of the circulation pump (14) is relatively high during low power generation and decreases as the generation power increases, and a volumetric flow rate during high power generation in which a large amount of reformed gas is required can be decreased relatively. As the result, a dynamic range required for the circulation pump (14) can be made small. Furthermore, water condensation in the inlet of the circulation pump (14) can be prevented during low power generation.

    摘要翻译: 随着燃料电池(11)的输出增加,提供用于冷却引入到循环泵(14)的入口中的重整气体的第一热交换器(19)的冷却能力增加的构造。 通过该结构,能够提供如下特征:循环泵(14)的入口温度在低发电时较高,随着发电功率的增加而降低,高发电时的体积流量大, 所需的重整气体可以相对减少。 结果,可以使循环泵(14)所需的动态范围变小。 此外,在低发电期间可防止循环泵(14)入口处的水冷凝。