Fuel cell stack temperature control system and method
    1.
    发明授权
    Fuel cell stack temperature control system and method 有权
    燃料电池堆温度控制系统及方法

    公开(公告)号:US07465508B2

    公开(公告)日:2008-12-16

    申请号:US10898144

    申请日:2004-07-23

    IPC分类号: H01M8/04

    摘要: A temperature control system and method for a fuel cell stack cooling system is disclosed. The temperature control system includes a coolant circulation line for circulating a coolant to and from a fuel cell stack. A coolant pump is provided in the coolant circulation line, and a pump ΔP sensor is provided in fluid communication with the coolant circulation line on inlet and outlet sides of the coolant pump. The pump ΔP sensor measures a change in pump pressure between the inlet and outlet sides of the coolant pump. A pump map is provided having correlated values of pump speed, change in pump pressure and coolant flow rate for correlating the coolant flow rate with the pump speed and the change in pump pressure to attain a desired coolant flow rate for optimum fuel stack cooling.

    摘要翻译: 公开了一种燃料电池堆冷却系统的温度控制系统和方法。 温度控制系统包括用于将冷却剂循环到燃料电池堆和从燃料电池堆流出的冷却剂循环管线。 在冷却剂循环管线中设置有冷却剂泵,并且提供泵DeltaP传感器,其与冷却剂循环管线在冷却剂泵的入口侧和出口侧流体连通。 泵DeltaP传感器测量冷却剂泵入口侧和出口侧之间泵压力的变化。 提供泵图,其具有泵速度的相关值,泵压力和冷却剂流量的变化,用于将冷却剂流量与泵速度和泵压力的变化相关联,以获得期望的冷却剂流量以获得最佳燃料箱冷却。