Pulsed Plasma PM Removal from Diesel Exhaust Emissions. Influences of Reaction Conditions
Pulsed Plasma PM Removal from Diesel Exhaust Emissions. Influences of Reaction Conditions
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脉冲等离子体去除柴油机尾气排放中的颗粒物。
DOI：
10.5796/electrochemistry.77.1013
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发表时间：
2009
期刊：
影响因子：
2.5
通讯作者：
Yoon
中科院分区：
文献类型：
--
作者：
Shin Yamamoto;S. Yao;S. Kodama;C. Fushimi;C. Mine;Y. Fujioka;K. Madokoro;Naito Kazuya;Yoon
研究了空速和发动机输出功率对介质阻挡放电（DBD）等离子体颗粒物（PM）去除的影响。无等离子体放电时，颗粒物的去除率与空速近似成反比。已经发现，与没有等离子体放电的PM去除率相比，具有等离子体放电的PM去除率对空速不太敏感。作为该结果的原因，怀疑由等离子体放电产生的活性氧物种与DBD反应器内的漂浮PM一起转移，然后与漂浮PM反应。PM去除率随着发动机输出功率的增加而降低，并且已经发现随着较高的放电电功率观察到更显著的下降。这一结果不能仅仅用发动机输出功率增加引起的空速增加来解释。考虑了颗粒物尺寸、颗粒物浓度和反应温度随发动机输出功率的增加而增加的因素，以减小等离子体放电对颗粒物去除的影响。
Influences of space velocity and engine output power on the plasma particulate matter (PM) removal with a dielectric barrier discharge (DBD) reactor have been investigated. The PM removal ratio without plasma discharges is approximately in inverse proportion to space velocity. The PM removal ratio with plasma discharges has been found to be less susceptible to space velocity than that without plasma discharges. As a cause of this result, it is suspected that active oxygen species produced by the plasma discharges transfer with the floating PM within the DBD reactor and then react with the floating PM. The PM removal ratio decreases with the increase in the engine output power, and the more pronounced declination has been found to be observed with the higher discharge electric power. This result is not explained only by the increase in space velocity arising from increasing engine output power. The factors, PM size, PM concentration, and reaction temperature, increasing with engine output power are considered to reduce the effects of plasma discharges on the PM removal.