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Shutdown and storage of fuel cell systems at sub-zero temperatures
Shutdown and storage of fuel cell systems at sub-zero temperatures
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机译:低于零温度的燃料电池系统的关闭和存储
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摘要
Improved methods are disclosed for shutting down and storing a fuel cell system, particularly for below freezing temperature conditions. The methods comprise stopping power production from the fuel cell stack, monitoring its temperature, and repeatedly performing a predetermined warming operation if the stack temperature falls to a normal threshold temperature. In the improved methods, either an initial threshold temperature and/or an initial warming operation are used that differ from the respective normal threshold temperature and the predetermined warming operation.
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