Higher Power Output in a PEMFC Operating under Autonomous Oscillatory Conditions in the Presence of CO
Higher Power Output in a PEMFC Operating under Autonomous Oscillatory Conditions in the Presence of CO
复制标题
在存在 CO 的情况下，在自主振荡条件下运行的 PEMFC 具有更高的功率输出
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
R. Datta
中科院分区：
文献类型：
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作者：
Jingxin Zhang;R. Datta
质子交换膜燃料电池 ~PEMFC 在自主振荡状态下的时间平均电池电压、电池效率和功率密度高于稳定状态下的电池电压、电池效率和功率密度！在阳极进料重整气体中存在 CO 的情况下运行。 55°C 振荡状态下的平均功率密度是稳定状态下的两倍。平均电池电压和功率密度增益是由于振荡状态下时间平均阳极过电势的降低所致。因此，该报告提供了实验证据，表明与稳定的稳态运行相比，在 CO 存在下燃料电池的自主振荡运行可以增加功率输出。
Time-averaged cell voltage, cell efficiency, and power density in an autonomous oscillatory state was higher than that in stable steady-state for a proton exchange membrane fuel cell ~PEMFC! operating in the presence of CO in the anode feed reformate gas. The average power density under such an oscillatory state at 55°C is twice that under a stable steady state. The average cell voltage and power density gain are due to the decrease of the time-averaged anode overpotential in the oscillatory state. This report thus provides experimental evidence that autonomous oscillatory operation of fuel cells in the presence of CO can increase the power output as compared to that in stable steady-state operation.