| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell cooling system capable of suppressing deterioration of operation efficiency of a fuel cell, while supplying the fuel cell with flow rate required for cooling the fuel cell. <P>SOLUTION: The fuel cell cooling system 1 is provided with a cooling liquid flow-rate determination part 50. The cooling liquid flow-rate determination part 50 obtains a voltage drop amount by deducting the output voltage value of the fuel cell 10 from a reference voltage value. Also the flow-rate determination part 50 inputs information of a target extraction current value of the fuel cell 10. Then the flow-rate determination part determines a circulation flow-rate of the cooling liquid that is circulated in the cooling liquid circulation system 20, based on the voltage drop amount and the target extraction current value. Here, heat generation amount of the fuel cell 10 can be estimated, based on a product of the voltage drop amount and the target extraction current value. Accordingly, since the circulation flow-rate of the cooling liquid can be determined by the voltage drop amount and the target extraction current value, appropriate circulation flow-rate of the cooling liquid can be obtained. <P>COPYRIGHT: (C)2007,JPO&INPIT |
