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DEVICE AND METHOD FOR REGULATING THE WATER BALANCE DURING THE OPERATION OF A FUEL CELL
DEVICE AND METHOD FOR REGULATING THE WATER BALANCE DURING THE OPERATION OF A FUEL CELL
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机译:在燃料电池工作期间调节水平衡的装置和方法
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摘要
A PEM fuel cell system includes a PEM fuel cell that has an input and output port each for fuel or reformate, process air and coolant. A predetermined fraction of volume of moistened exhaust air leaving the air output port of the fuel cell is diverted back and combined with fresh, air at ambient temperature entering the air input port of the PEM fuel cell to maintain water balance in the fuel cell at high ambient operating temperatures. The recycle-to-air vent ratio is controlled by a processor which adjusts the recycle flow based on the ambient temperature and the power level of the fuel cell.
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