To overcome the weak point of the gas type heating (failure in heating uniformly and persistently), liquid type molten salt as a concentration of solar energy was considered as a heat source for dry reforming. This high-temperature molten salt flowing through the center of the tubular reactor supplies necessary heat. The dependence on the number of heat source of the hydrogen production was investigated under the assumption of the fixed volume of the catalyst bed. By changing these numbers, we numerically investigated the methane conversion and hydrogen flow rate to find the best performance. The results showed that the methane conversion performance and hydrogen flow rate improved in proportion to the number of heating tubes. For the one heat source, the reactor surrounded by a heat source rather than that located in the center is the best in terms of hydrogen yield. In addition, this study considered the case in which the system is divided into several smaller reactors of equal sizes and a constant amount of catalyst. In these reactors, we saw that the methane conversion and hydrogen flow rate were reduced. The results indicate that the installation of as many heating tubes as possible is preferable.

中文翻译：

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甲烷干法重整中热源数量的变化：计算流体动力学研究

为了克服气体加热的弱点（不能均匀和持续加热），液体型熔盐作为太阳能的聚集被认为是干重整的热源。这种流经管式反应器中心的高温熔盐提供必要的热量。在催化剂床体积固定的假设下，研究了制氢对热源数量的依赖性。通过改变这些数字，我们对甲烷转化率和氢气流速进行了数值研究，以找到最佳性能。结果表明，甲烷转化性能和氢气流量与加热管数量成正比。对于一个热源，被热源包围的反应器而不是位于中心的反应器在氢气产率方面是最好的。此外，本研究还考虑了将系统分成几个大小相同且催化剂量恒定的较小反应器的情况。在这些反应器中，我们看到甲烷转化率和氢气流速降低。结果表明，最好安装尽可能多的加热管。