摘要
通过对轻型车燃用生物柴油和0#柴油尾气排放的测量和分析,研究瞬态工况有害排放物模态特性。试验结果表明,与0#柴油相比,轻型车燃用生物柴油可显著改善冷启动过程的HC和CO排放,其HC、CO和PM比排放分别降低76.9%、45.7%和52.8%,但NOx比排放增加5.8%。燃料在燃烧转变为CO2和H2O释放出化学能的同时也将空气中的N2氧化成NOx,因而可用NOx/CO2来描述NOx排放随运行工况的变化规律。
By measuring and analyzing the exhaust emissions of a hght-duty vehicle fueled with biodiesel and No. 0 diesel fuel, the characteristics of emissions under transient operation condition are investigated. The test results show that compared to No. 0 diesel fuel, the HC and CO emissions of vehicle fueled with biediesel at cold start are markedly improved. The specific emissions of HC, CO and PM decrease by 76. 9%, 45.7% and 52. 8% respectively, but the specific NOx emission rise by 5.8%.
出处
《汽车工程》
EI
CSCD
北大核心
2007年第2期117-120,共4页
Automotive Engineering
基金
江苏大学高级人才启动基金项目(06JDG041)
国家自然科学基金项目(50376021)资助。
关键词
轻型车
生物柴油
瞬态工况
排放
Light duty vehicle
Biodiesel
Transient operating condition
Emissions
