发明授权
US08512904B2 Fuel cell system for promptly increasing temperature of fuel cell stack during start up operation of the fuel cell system and method of managing the fuel cell system 失效
燃料电池系统的启动操作期间燃料电池堆的温度升高的燃料电池系统及燃料电池系统的管理方法

Fuel cell system for promptly increasing temperature of fuel cell stack during start up operation of the fuel cell system and method of managing the fuel cell system
摘要:
A fuel cell system a includes a cooling water temperature raising unit that raises the temperature of a fuel cell stack by passing discharge gas of a process burner or hydrogen gas of a fuel processing unit and cooling water that is heated by the discharge gas of the process burner through flow paths formed on opposing surfaces of cooling separators formed of a metal and installed between a plurality of cells in the stack. Thus in the fuel cell system, when the temperature of the stack needs to be rapidly raised, for example, during a start up operation of the fuel cell system, the temperature of the stack can be rapidly raised using discharge gas at a high temperature or combustion heat of hydrogen gas, and heated cooling water, and thereby, significantly reducing the time required for the fuel cell system to be in regular operation.
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