田茂军 1王坤 1黄德军 1谷雨 1邓力 1税绍强1
作者信息
- 1. 中国汽车工程研究院股份有限公司,重庆 401122
- 折叠
摘要
Abstract
Number of non-road mobile machinery is relatively smaller than that of motor vehicles,but due to its emission standards starting late,standards formulation and implementation of emission reduction measures are relatively backward.Moreover,due to problems such as a wide power use range,poor operating environment,high mobility,and difficult supervision,resulting in its emis-sion problem has become highly prominent.Particulate matter emissions far exceed motor vehicles.Non-road mobile machinery shoulders an important mission of energy conservation and emission reduction in field of mobile sources in the future,and emission standards upgrading is still an important means to face challenges.From standard system,application scope,emission limits,test cycles,mechanical carborne methods,crankcase and smoke,durability and warranty period,nitrogen oxide and particulate matter con-trol,carborne terminals,and remote monitoring,production consistency management,and in-use compliance monitoring,differ-ences between China IV and European V,EPA Tier 4 standards were comprehensively analyzed,as well as energy technology trans-formation and internal combustion engine technology development under carbon neutrality background.China's future development trend and suggestions for non-road mobile machinery emission standards were put forward:to further draw on foreign advanced experience in emission test cycles,pollutant limits,durability and warranty,and to follow China's localized and efficient production consistency,in-use compliance,remote monitoring and other management measures.In addition,deficiencies in regulatory scope of current standards should be fully considered,greenhouse gas control should be introduced,and to adapt to diversified development trend of fuels and power systems,application scope of fuels and machinery types should be expanded,striving to achieve standard-led technological devel-opment,realizing non-road mobile machinery in future to reduce both pollution and carbon emissions and to promote comprehensive en-vironmental improvement.关键词
碳中和/非道路移动机械/排放标准/内燃机/后处理系统Key words
carbon neutrality/non-road mobile machinery/emission standards/combustion engine/aftertreatment system分类
农业科技
