| 风冷非道路柴油机排放特性研究 |
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| 引用本文： | 刘志华,何超,谭建伟,葛蕴珊.风冷非道路柴油机排放特性研究[J].内燃机学报,2009,27(3). |
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| 作者姓名： | 刘志华 何超 谭建伟 葛蕴珊 |
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| 作者单位： | 刘志华,谭建伟,葛蕴珊,LIU Zhi-hua,TAN Jian-wei,GE Yun-shan(北京理工大学,汽车动力性与排放测试国家专业实验室,北京,100081);何超,HE Chao(北京理工大学,汽车动力性与排放测试国家专业实验室,北京,100081;西南林学院交通机械与土木工程学院,云南,昆明,650224)
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| 摘 要： | 利用车载排放检测仪(SEMTECH)和电子低压冲击仪(ELPI)进行了某非道路风冷非增压柴油机的气态污染物的测量和排放颗粒物粒径及质量分布特征研究.试验按照非道路柴油机排放标准规定的工况进行测量.试验结果表明:试验用非道路柴油机气态污染物中NOx的排放较差;微粒数量排放均成单峰对数正态分布,积聚模态微粒数浓度随负荷增加而增大,随负荷的减小积聚模态的粒径分布向小粒径方向移动,变化规律与车用柴油机相似,但粒径整体要大于车用柴油机;不同粒径微粒的质量呈双峰分布,分别对应积聚模态和粗粒子模态,积聚模态微粒对总质量排放的贡献较大,但与车用柴油机相比分担率有所不同.
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| 关 键 词： | 非道路柴油机 气态污染物 微粒 粒径分布 质量分布 |
Study on Emission Characteristics of Off-Road Air-Cooler Diesel Engine |
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| LIU Zhi-hua,HE Chao,TAN Jian-wei,GE Yun-shan.Study on Emission Characteristics of Off-Road Air-Cooler Diesel Engine[J].Transactions of Csice,2009,27(3). |
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| Authors: | LIU Zhi-hua HE Chao TAN Jian-wei GE Yun-shan |
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| Affiliation: | 1.National Laboratory of Auto Performance and Emission Test;Beijing Institute of Technology;Beijing 100081;China;2.School of Transportation;Machinery and Civil Engineering;Southwest Forestry College;Kunming 650224;China |
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| Abstract: | With a SEMTECH onboard emission measuring device and an electrical low-pressure impactor(ELPI),the gaseous emissions of an off-road air-cooler naturally aspirated diesel engine were measured,and the number and mass weighted size distribution of PM were studied.Based on the test cycle of China off-road emission,the test results showed high NOx concentrations from off-road diesel engine.Meanwhile,the particle number weighted size showed the unimodal and lognormal distributions,and the number of Accumulation M... |
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| Keywords: | Off-road diesel engine Gas pollution Particle Size distribution Mass distribution |
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