摘要
分别在柴油机25%、50%、75%、100%负荷下,对柴油机微粒捕集器(DPF)进行了PM采样试验。以氧气为气源,利用自行设计的低温等离子体(NTP)喷射系统,对采样后的DPF进行再生试验。通过测量再生产物中碳氧化物(CO_x)体积分数的变化,分析了柴油机负荷对PM分解和DPF再生的影响。研究结果表明:随着负荷的增加,CO物质的量先减小后趋于平稳,CO_2物质的量呈先增大后减小的趋势;当负荷为50%时,CO_x物质的量较大,PM被氧化分解的量较多,DPF的再生效果较好。NTP活性物质对柴油机中等负荷下PM的氧化分解能力较为显著。
PM particulate filters. By produced by diesel using a self-design the regeneration of diesel particulate f lte running at 25%, 50%, 75%, 100% load was trapped by diesel ed non-thermal plasma（NTP） injection system, an experiment on rs was carried out, where oxygen as the gas source. The effect of engine load on DPF regeneration was investigated by observing the variation of carbon oxides during regeneration process. Results show that, with the increasing of engine load, the mass of CO decreases first and then keeps the steady state, the mass of CO2 increases first and then decreases. When the diesel runs at 50% load, the mass of COx appears the biggest value, more particulate matter is decomposed and the regenerative effect is more remarkable. Active substance has a stronger ability to decompose PM produced by diesel running at medium load.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2016年第6期200-204,共5页
Chinese Internal Combustion Engine Engineering
基金
国家自然科学基金项目(51176067)
教育部博士点基金项目(2010322711014)
江苏省高校优势学科建设项目(PDPA)
关键词
内燃机
柴油机
微粒捕集器
低温等离子体
再生
负荷
IC engine
diesel engine
particulate filter
non-thermal plasmaregeneration
engine load
