摘要
基于电晕放电理论设计了低温等离子体(non-thermal plasma,NTP)发生器,由柴油机、低温等离子体处理器和静电低压冲击仪组成试验系统和测试系统,测试低温等离子体对柴油机排气微粒粒径、数量及其分布的影响。以试验为基础,对柴油机排气微粒经过低温等离子体后的物理性质进行了研究和分析,为聚集体的清除提供了理论基础。试验结果表明:低温等离子体通过氧化和捕集的方式降低柴油机排气微粒的数量浓度和质量浓度,排气微粒总数量下降了40%,排气微粒总质量减小了76.9%,随着低温等离子体强度的增大降低作用增强。
On the basis of corona discharge theory, a non-thermal plasma（NTP） reactor was designed. An experiment and measurement system, consisting of diesel engine, NTP reactor and electrostatic low voltage impacter （EI.VI）, was built up and used to examine effects of NTP on PM size, quantity and their distributions. Physical properties of the PM after NTP treatment were analyzed using experiment method for providing the theoretical basis to remove the PM aggregation. Results indicate that NTP can reduce PM quantity and mass densities by trapping and oxidation action, with NTP intension increasing its reduction function enhances.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2013年第1期8-12,共5页
Chinese Internal Combustion Engine Engineering
基金
国家自然科学基金资助项目(51006011)
河北省科学技术厅科技支撑基金资助项目(11213913D)
关键词
内燃机
柴油机
微粒
低温等离子体
数量浓度
质量浓度
IC engine
diesel engine
particulate matter
non-thermal plasma
quantity density
mass density
