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部分流颗粒仪参数设定对PM采样影响的试验研究

Wen-hua CAI,Tao HUA,Jun CAI, Jun CHEN

Modern Vehicle Power（2014）

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Abstract
采用部分流颗粒仪采样设备AVL SPC472对某柴油机的排放颗粒物(PM)进行了测试,通过改变经过SPC472采样滤纸的总流量Gtot和采样比等影响稀释比的参数数值,对某柴油机进行了单工况试验,并结合滤纸前的样气温度讨论了温度变化对PM采样的影响.试验结果表明,在Gtot保持1.4 g/s和1.5 g/s不变的状况下,PM的比排放量在滤纸温度47℃处有最大值,并随着采样比的变小而变小.
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