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FUEL CELL SYSTEM AND METHOD FOR INFLUENCING THE THERMAL AND TEMPERATURE BUDGET OF A FUEL CELL STACK
FUEL CELL SYSTEM AND METHOD FOR INFLUENCING THE THERMAL AND TEMPERATURE BUDGET OF A FUEL CELL STACK
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机译:影响燃料电池堆的温度和温度预算的燃料电池系统和方法
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摘要
The invention relates to a fuel cell system including a fuel cell stack (10), an afterburner (12) for combustion of exhaust gas emerging from the fuel cell stack and sited in an exhaust gas conduit of the afterburner a heat exchanger (16) in which cathode feed air (18) supplied to the fuel cell stack (10) can be heated. In accordance with the invention it is provided for that cathode feed air (20) can be supplied to the fuel cell stack (10) without being prior heated in the heat exchanger (16) and that the heat and temperature balance of the fuel cell stack (10) can be tweaked by the overall flow of the cathode feed air supplied as well as by the ratio of the proportions (18, 20) of the cathode feed air as heated in the heat exchanger and as not heated in the heat exchanger. The invention relates furthermore to a method of tweaking the heat and temperature balance of a fuel cell stack.
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