摘要
采用车载排放测试系统和窗口平均值法研究了柴油机在高原地区运行时氮氧化物(NO_x)排放及工作窗口大小对NO_x比排放的影响。试验结果表明:高原环境下NO_x比排放高于国标要求;取不同大小的工作窗口对NO_x比排放结果有影响,窗口越小,则NO_x平均比排放变异系数越大,氮氧化物比排放(bsNO_x)值越离散;窗口越大,则NOx比排放的变异系数越小,但会因此降低试验数据的利用率。
Portable Emission Measurement System(PEMS) and Average Window Method(AWM) were used to study the effect of NOx emission and working window size on bs NOx of the diesel engine operating in the plateau area. Test results show that, in the plateau environment, the bs NOx is higher than the national standard. The size of the working window affects the NOx emissions, the smaller the window, the higher the average bs NOx variable coefficient is, and the more the bs NOx value becomes discrete. The larger the window, the smaller bs NOx variable coefficient is, but the utilization of experimental data will be reduced.
作者
陈剑杰
宋国富
李春敏
李加强
何超
Chen Jianjie;Song Guofu;Li Chunmin;Li Jiaqiang;He Chao(Southwest Forestry University,Kunming 650224;Yunnan Yunnei Power Group Co.,Ltd.Kunming 650224)
出处
《汽车技术》
CSCD
北大核心
2018年第7期32-35,共4页
Automobile Technology
基金
国家自然科学基金(51266015)
云南省农业联合专项重点项目(2017FG001(-010))
云南省应用基础研究青年项目(2017FD108)
西南林业大学校基金(XL21436,XL21625)
西南林业大学科技创新基金(C16054)