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首页> 外文会议>International Conference on Fuel Cell Science, Engineering and Technology; 20040614-20040616; Rochester,NY; US >NUMERICAL INVESTIGATION ON THE STRATEGIES FOR REDUCING THE CELL TEMPERATURE GRADIENT OF AN INDIRECT INTERNAL REFORMING TUBULAR SOFC
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NUMERICAL INVESTIGATION ON THE STRATEGIES FOR REDUCING THE CELL TEMPERATURE GRADIENT OF AN INDIRECT INTERNAL REFORMING TUBULAR SOFC

机译：减少间接内部重整型管状燃料电池的细胞温度梯度的策略的数值研究

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摘要

Strategies to reduce the temperature gradient of the cell have been numerically examined by using a comprehensive analytical model of an indirect internal reforming tubular SOFC, the first generation of which was presented at the last conference in 2003 (1st ICFCSET). In particular, how the air flow rate, gas inlet temperature and density distribution of reforming catalyst affect the thermal field in the cell has been examined. Based on the calculated results, it has been confirmed that larger air flow rate reduces the maximum temperature and accordingly the temperature gradient of the cell, while lower inlet temperatures of gases reduce only the average temperature of the cell. For the reforming catalyst distribution, it has been determined that the temperature gradient of the cell can be fairly reduced by adjusting the amount and allocation of the catalyst. In addition, it has been revealed that the distribution pattern of the catalyst has little effect on the average temperature, so that the power generation performance of the cell is not affected by the adjustment of the catalyst distribution pattern substantially.
机译：通过使用间接内部重整管式SOFC的综合分析模型，对降低电池温度梯度的策略进行了数值研究，该模型的第一代产品在2003年的上次会议（第一届ICFCSET）上发表。特别地，已经研究了空气流速，气体入口温度和重整催化剂的密度分布如何影响电池中的热场。基于计算结果，已经证实较大的空气流速降低了最高温度并因此降低了电池的温度梯度，而较低的气体入口温度仅降低了电池的平均温度。对于重整催化剂的分布，已经确定可以通过调节催化剂的量和分配来适当降低电池的温度梯度。另外，已经发现，催化剂的分布图案对平均温度几乎没有影响，因此电池的发电性能基本上不受催化剂分布图案的调节的影响。

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