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车用国六柴油机氧化亚氮(N2O)排放特性研究 被引量:1

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摘要 对一台满足国六排放的车用柴油机进行台架试验,探究其在国六标准试验循环中的氧化亚氮(N2O)排放特性。结果表明:在稳态和瞬态循环中,N2O的排放均受排温及尿素喷射的影响。在冷热态瞬态循环中,前期N2O排放差异较大,热态循环排放远高于冷态,后期排温升高,冷态与热态N2O排放趋势基本一致。在稳态循环中,随着负荷增加,排温升高,N2O排放会出现峰值,当负荷降低时,过量喷射的尿素使逃逸的NH3在ASC中被氧化,同样会出现峰值。
出处 《专用汽车》 2023年第11期81-83,共3页 Special Purpose Vehicle
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