Optimization of NH3 Decomposition by Control of Discharge Mode in a Rotating Arc
Optimization of NH3 Decomposition by Control of Discharge Mode in a Rotating Arc
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DOI：
10.1007/s11090-013-9495-z
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发表时间：
2014-01-01
影响因子：
3.6
通讯作者：
Song, Young-Hoon
中科院分区：
文献类型：
--
作者：
Lee, Dae Hoon;Kim, Kwan-Tae;Song, Young-Hoon
在本研究中，研究了旋转电弧的特征行为。在旋转的电弧中可以观察到各种模式，这取决于所提供的电力。每种模式产生不同的放电特性和热环境，因此，在每种模式中可以不同地控制承载在等离子体反应体积中的化学过程。在滑动电弧中观察到的一般热到非热的转变是基于弧柱的纵向膨胀。在旋转电弧中，通过控制反应堆的几何形状，可以实现反向转变或非热到热的转变。通过对限制弧柱纵向扩展的弧柱进行自调整，可以实现反向过渡。反向转换提高了电能到热能的转换效率。然后，通过对操作方式的控制，得到了最佳的热活化条件，并通过NH3分解反应进行了验证。
In this study, the characteristic behavior of a rotating arc was investigated. Various modes, depending on the electric power supplied, can be observed in a rotating arc. Each mode produces different discharge characteristics and thermal environments and, accordingly, chemical processes hosted in the plasma reaction volume can be controlled differently in each mode. General thermal to non-thermal transitions observed in a gliding arc are based on the longitudinal expansion of the arc column. In a rotating arc, the reverse transition or non-thermal to thermal transition can be hosted by controlling the reactor geometry. The reverse transition can be achieved by self-adjustment of the arc column where longitudinal expansion of the arc column is confined. The reverse transition enhances the conversion efficiency of electric power to thermal energy. Then, optimization of thermal activation was obtained by controlling the mode of operation, and it was verified using the NH3 decomposition reaction.