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首页> 外文期刊>電気学会論文誌 A:基礎.材料.共通部門誌 >Influences of Excess Oscillation of Voltage Pulse and Discharge Mode on NO Removal Using Barrier-Type Plasma Reactor
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Influences of Excess Oscillation of Voltage Pulse and Discharge Mode on NO Removal Using Barrier-Type Plasma Reactor

机译：电压脉冲和放电方式的过分振荡对势垒型等离子体反应器去除NO的影响

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摘要

This paper presents experimental results of NO removal from a simulated exhausted-gas using a barrier type reactor with screw electrodes subjected to polarity-reversed voltage pulses. The polarity-reversed pulse was produced by direct grounding of a charged coaxial cable because a traveling wave voltage was negatively reflected at the grounding end with a change in its polarity and then it propagated to the plasma reactor at the opposite end. Influence of cable length on NO removal was studied for two kinds of cable connection, single-connected cable and parallel-connected cables. NO removal ratio for a 50 m-long cable was lower than that for much shorter cables in both single and parallel connections when the applied voltage became high. Energy efficiency for NO removal also increased with decreasing the cable length. This was because excess discharges during the voltage oscillation caused by the large stored energy in the long cable resulted in reproduction of NO molecules. Energy efficiency was further improved by changing the discharge mode from dielectric barrier discharge (DBD) to surface discharge (SD). Energy efficiency was up to 110 g/kWh with 55% NO removal ratio and 34 g/kWh with 100% NO removal ratio by using a single 10m-long cable in SD mode.
机译：本文介绍了使用带有螺旋电极的势垒式反应器从模拟废气中去除NO的实验结果，该电极承受极性反转的电压脉冲。极性相反的脉冲是通过将带电的同轴电缆直接接地而产生的，因为行波电压会随着极性的变化在接地端被负反射，然后传播到另一端的等离子体反应器。研究了电缆长度对单连接电缆和并联电缆两种电缆连接方式中NO去除的影响。当施加的电压较高时，单连接和并联连接中50 m长的电缆的NO去除率均比短得多的电缆的NO去除率低。随着电缆长度的减少，NO去除的能效也提高了。这是因为在长电缆中大量存储的能量引起的电压振荡期间的过量放电导致NO分子的再生。通过将放电模式从介电势垒放电（DBD）更改为表面放电（SD），可以进一步提高能源效率。通过在SD模式下使用一条10m长的电缆，在55％的NO去除率下能效高达110 g / kWh，在100％NO的去除率下能效高达34 g / kWh。

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