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基于LLC循环的重型车变负载排放特征研究

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本文基于低负荷循环(Low-load Cycle,LLC),对重型车不同负载条件下的一氧化碳(CO)、氮氧化物(NOx)以及10nm以上颗粒物数量(PN10)的排放特征进行了试验研究。结果表明,LLC工况下,CO排放总量随负载增加而增加,比排放趋势相反;负载升高有利于降低NOx排放;PN的排放随负载的增加而增加,且10-23nm的颗粒物比例也随负载的增加而增加。
Research on Emissions of Heavy Duty Vehicles with Different Loads under Low Load Cycles
This study conducts experimental research on the emission characteristics of carbon monoxide(CO),nitrogen oxides(NOx),and particulate matter quantity above 10nm(PN10)of heavy-duty vehicles withr different loads under low load cycle(LLC).The results were obtained:under LLC operating conditions,the to-tal emissions of CO increase with the increase of load,but the emissions per unit power is opposite.The emis-sions of NOx decreases with increasing loads under LLC operating conditions.Both PN10 and PN23 increase with increasing load,and the larger the load,the higher the proportion of particles with a size of 10-23nm.

LLCHeavy duty vehicleEmissions

黄鹏程、孟庆梁、刘志伟、龚家根

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中汽研汽车检验中心(天津)有限公司,天津 300300

低负荷循环 重型车 排放污染物

2024

内燃机与配件
石家庄金刚内燃机零部件集团有限公司

内燃机与配件

影响因子:0.095
ISSN:1674-957X
年,卷(期):2024.(6)
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