Collection of diesel exhaust particle using electrostatic charging prior to DPF and regeneration of DPF using sliding discharge
Collection of diesel exhaust particle using electrostatic charging prior to DPF and regeneration of DPF using sliding discharge
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在 DPF 之前使用静电充电收集柴油机尾气颗粒并使用滑动放电再生 DPF
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
H. Hayashi
中科院分区：
文献类型：
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作者：
H. Hayashi
柴油机微粒捕集器（DPF）是降低柴油机微粒排放的关键技术.然而，仍然需要对压降、耐久性和纳米颗粒的收集效率不足进行技术改进。静电除尘器（ESP）是用于废气处理的另一项领先技术，但目前仅限于固定源的应用。在本文中，我们已经证明，同时使用的ESP和DPF显示非常高的收集效率和缓慢的压力降的增加的协同效应。与单独DPF相比，在组合系统下游观察到的颗粒数浓度小98%。与此同时，可以确认，与仅DPF相比，DPF两端的压降的增加慢约10%。此外，还研究了利用低温等离子体（NTP）再生DPF。为了在DPF内部产生等离子体，在前面使用表面放电，并且在DPF上施加DC电场。在这项研究中，放电等离子体被用来氧化颗粒物内积累的DPF。它显示了大约10克每千瓦时（g/kWh）的PM氧化效率。
Diesel particulate filter (DPF) has been established as a key technology in reducing diesel particulate emission. However, technological improvements to pressure drop, durability, and insufficient collection efficiency for nano-particles are still required. Electrostatic precipitator (ESP) is another leading technology used in exhaust treatment but it is currently limited to applications for stationary sources. In this paper we have proven that simultaneous use of ESP and DPF show synergetic effects of very high collection efficiency and slower increase of the pressure drop. The number concentration of particles observed downstream of the combined system was 98% smaller compared with that of DPF only. At the same time, it was confirmed that increase in the pressure drop across the DPF was slower about 10% compared with that of DPF only. In addition, regeneration of DPF was also investigated using non-thermal plasma (NTP). In order to generate the plasma inside the DPF, a surface discharge was used in front and a DC electric field was applied across the DPF. In this study, the discharge plasma was used to oxidize PM accumulated inside the DPF. It showed around ten grams per kilowatt-hour (g/kWh) of the PM oxidation efficiency.
DOI：
10.4271/2003-01-1886
发表时间：
2003-05
期刊：
SAE transactions
影响因子：
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作者：
M. Okubo;T. Kuroki;Toshiaki Yamamoto;S. Miwa
通讯作者：
M. Okubo;T. Kuroki;Toshiaki Yamamoto;S. Miwa
采用非热等离子体诱导自由基注入的 DPF 低温烟灰焚烧
DOI：
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发表时间：
2003
期刊：
Proc.of ESA-IEE Joint Meeting on Electrostatics 2003
影响因子：
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作者：
M.Okubo
通讯作者：
M.Okubo