Journal of Guangdong University of Technology ›› 2022, Vol. 39 ›› Issue (02): 84-90.doi: 10.12052/gdutxb.210041

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An Analysis of NOx and Smoke Purification Effect for Diesel Vehicles Based on Lugdown Cycle

Peng Mei-chun1, Ye Wei-bin1, Zou Kang-cong1, Li Jun-ping1, Huang Wen-wei2   

  1. 1. School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China;
    2. School of Automotive and Transportation Engineering, Shenzhen Polytechnic, Shenzhen 518055, China
  • Received:2021-03-10 Online:2022-03-10 Published:2022-04-02

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Abstract: The purification effect of selective catalyst reduction (SCR), exhaust gas recirculation (EGR), diesel particulate filter (DPF) and diesel oxidation catalyst (DOC) on nitrogen oxide (NOx) and smoke of diesel vehicles was studied by short cycle lugdown. It was performed lugdown emission test of NOx and smoke opacity for 116 heavy-duty diesel trucks in line with China V and China VI emission standards, equipped with the above exhaust purification technologies. It was compared the emission data of vehicles, the purification effect of the purification technology evaluated, the difference of emissionsbetween100%VelHPMax and 80%VelHPMax test condition analyzed. It is found that the purification effect of EGR and SCR integrated technology on NOx is obviously better than single technology SCR or EGR, and the SCR is better than EGR. For vehicles equipped with EGR and SCR integrated technology and single technology SCR, the NOx volume concentration is higher at 100% VelHPMax than 80% VelHPMax, while with single technology EGR is opposite. The smoke opacity value of diesel vehicles equipped with DOC and DPF integrated technology is significantly lower than single technology DOC. The smoke optical absorption coefficient of diesel vehicles inspected is higher at 100% VelHPMax than 80% VelHPMax. The results show that lugdown cycle test can distinguish effective the difference of purification effect of emission purification technologies of diesel vehicles.

Key words: diesel vehicle, nitrogen oxide, smoke, emission purification technology, lugdown cycle

CLC Number: 

  • U467.1+2
[1] 生态环境部. 中国机动车环境管理年报(2020年)[R]. 北京: 中华人民共和国生态环境部, 2020.
[2] 单文坡, 余运波, 张燕, 等. 中国重型柴油车排气净化技术研究进展[J]. 环境科学研究, 2019, 32(10): 1672-1677.
SHAN W P, YU Y B, ZHANG Y, et al. Research progress in exhaust purification technology of heavy diesel vehicles in China [J]. Research of Environmental Sciences, 2019, 32(10): 1672-1677.
[3] GUAN B, ZHAN R, LIN H, et al. Review of the state-of-the-art of exhaust particulate filter technology in internal combustion engines [J]. Environ Manage, 2015, 154: 225-58.
[4] DHAL D, MOHAN P. Simultaneous abatement of diesel soot and NO x emissions by effective catalysts at low temperature: an overview [J]. Catalysis Reviews, 2018, 60(3): 437-496.
[5] 王谦, 周明星, 涂方印. 车用柴油机Urea-SCR系统降低NO x的试验研究[J]. 拖拉机与农用运输车, 2011, 38(5): 36-39,42.
WANG Q, ZHOU M X, TU F Y. Test study of reducing vehicular diesel engine NOx emission with Urea-SCR system [J]. Tractor & Farm Transporter, 2011, 38(5): 36-39,42.
[6] 张盼望, 熊锐, 吴坚, 等. 低压EGR系统对缸内直喷发动机性能影响的研究[J]. 广东工业大学学报, 2020, 37(5): 82-86.
ZHANG P W, XIONG R, WU J, et al. A Study of the effect of low pressure EGR system on gasoline direct injection engine performance [J]. Journal of Guangdong University of Technology, 2020, 37(5): 82-86.
[7] 葛蕴珊, 赵伟, 王军方, 等. DOC对柴油机排放特性影响的研究[J]. 北京理工大学学报, 2012, 32(5): 460-464.
GE Y S, ZHAO W, WANG J F, et al. Effects of diesel oxidation catalyst on emission from diesel [J]. Transactions of Beijing Institute of Technology, 2012, 32(5): 460-464.
[8] 焦鹏昊, 李强, 张文, 等. 机动车DOC-DPF系统排放特性试验研究[J]. 天津职业院校联合学报, 2017, 19(8): 68-72.
JIAO P H, LI Q, ZHANG W, et al. Research on emission characteristic test of motor vehicle DOC-DPF system [J]. Journal of Tianjin Vocational Institutes, 2017, 19(8): 68-72.
[9] 中华人民共和国生态环境部. GB17691-2018重型柴油车污染物排放限值及测量方法(中国第六阶段)[S]. 北京: 中国环境出版社, 2018.
[10] 彭美春, 张伟伦, 黎育雷, 等. 配置SCR的柴油货车道路运行NO x排放分析[J]. 安全与环境学报, 2019, 19(1): 320-325.
PENG M C, ZHANG W L, LI Y L, et al. Analysis of NOx emissions from road operation of diesel trucks equipped with SCR [J]. Journal of Safety and Environment, 2019, 19(1): 320-325.
[11] 禹文林, 叶文龙, 龙会游, 等. 轻型汽油车实际行驶污染物排放的影响因素[J]. 汽车安全与节能学报, 2020, 11(1): 135-142.
YU W L, YE W L, LONG H Y, et al. Influential factors of the real driving emission for light-duty gasoline vehicles [J]. J Automotive Safety and Energy, 2020, 11(1): 135-142.
[12] 中华人民共和国生态环境部. GB3847-2018柴油车污染物排放限值及测量方法(自由加速法及加载减速法)[S]. 北京: 中国环境出版社, 2018.
[13] 王军方, 尹航, 丁焰, 等. 在用柴油车NO x排放的测量方法[J]. 环境工程技术学报, 2015, 5(5): 407-410.
WANG J F, YIN H, DING Y, et al. Research of NOx emission test method for in-use diesel vehicles [J]. Journal of Environmental Engineering Technology, 2015, 5(5): 407-410.
[14] 徐驰, 刘娟, 居力, 等. 非分散红外法应用于在用柴油车NO x排放检测的研究[J]. 中国环境监测, 2019, 35(3): 28-33.
XU C, LIU J, JU L, et al. Research of NDIR applied on measuring NOx emission from in-use diesel vehicles [J]. Environmental Monitoring in China, 2019, 35(3): 28-33.
[15] 郭红松, 关敏, 景晓军, 等. 尿素-SCR技术对NO x转化率和NH3排放的影响[J]. 车用发动机, 2011(3): 55-59,64.
GUO H S, GUAN M, JING X J, et al. The influence of Urea-SCR technology on NOx conversion rate and NH3 emission [J]. Vehicle Engine, 2011(3): 55-59,64.
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