轿车用燃料电池发动机示范应用稳定性

通过360h的实验室动态运行实验,对30台轿车用燃料电池发动机稳定性进行了验证考核,预计寿命可达到3600h(20%性能损失)。30辆车累计运行里程超过120 000km,其中3#车单车运行里程达到15 000km(含世博后运行)。对3#车发动机示范运行过程中的性能稳定性进行了数据分析,对照实验室稳定性考核的实验结果,发现发动机在实际道路工况下的稳定性低于实验室动态运行条件。通过2种工况的对比分析,发现强动态特性及增湿系统功能在实际道路工况下的降低是燃料电池发动机性能稳定性降低的主要原因。

Performance stability of fuel cell engine applied in the fuel cell car demonstration

The 30 fuel cell engines were tested for 360 hours under the Lab cyclic condition,and was concluded of 3600 hours' lifetime with 20% performance loss.The 30 fuel cell cars run up to 120 000 km during the demonstration in total,and the 3# car achieved 15000 km total running range.The performance stability of the fuel cell engine in the 3# car was discussed by analyzing the datum from the demonstration.It was found that the performance stability of the fuel cell engine in the Real Way Condition was worse than that of the Lab Cyclic Condition,since the dynamic characters of the Real Way Condition" was stronger,and the ability of the humidifying system was degraded in the "Real Way Condition".