This work is to study the plasma application using a capacitive discharge ignition capable of using the plasma jet which belongs to the non-thermal plasma physic. A plasma-jet spark plug was designed to combine a discharge chamber including an insulator and expanding the plasma area. The nonresistance was applied to acting the interference suppression of a plasma-jet spark plug to ensure the high energy generated at a DC-DC converter. An ANSYS FLUENT program was used to conduct analyzing combustion progress. The combustion simulation model is composed of configurations of a spark plug, a lambda sensor, and an internal combustion chamber. Resultantly, the minimum value of the combustion pressure is verified at λ = 1.6, and the plasma jet has higher values in the order of 2, 3, and 4 bar than the conventional models due to having a fast reaction. Consequently, the plasma jet has advantageous in combustion diffusivity in comparison to the conventional spark plug since the negative electrode of the cathode is not designed in front of a jet plug.

中文翻译：

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等容积燃烧室内等离子射流点火和火焰核在燃烧过程中的作用

这项工作是研究使用能够使用属于非热等离子体物理学的等离子体射流的电容放电点火的等离子体应用。设计了等离子流火花塞，以结合包括绝缘体的放电室并扩大等离子体面积。非电阻用于抑制等离子流火花塞的干扰，以确保在DC-DC转换器上产生高能量。ANSYS FLUENT程序用于进行燃烧过程分析。燃烧模拟模型由火花塞，λ传感器和内燃室的配置组成。结果，燃烧压力的最小值在λ= 1.6处得到验证，并且由于具有快速的反应性，等离子流的压力值比常规模型高2、3和4 bar。