Characterizing particulate matter emissions from GDI and PFI vehicles under transient and cold start conditions
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- 作者：Longfei Chena ; chenlongfei@buaa.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Zhirong Lianga ; Xin Zhanga ; Shijin Shuaib
- 关键词：CMD ; Count Medium Diameter ; CPMA ; Couette Centrifugal Particle Mass Analyser ; CVS ; constant volume sampling system ; Dp ; diameter of the particles ; DMS 500 ; Differential Mobility Spectrometer 500 ; DPF ; diesel particulate filter ; ECE 15 ; urban driving cycle ; EUDC ; Extra Urban driving cycle ; GDI ; Gasoline Direct Injection ; M ; calculated mass according Couette Centrifugal Particle Mass Analyser ; NEDC ; New European Driving Cycle ; PM ; particulate matter ; PFI ; Port Fuel Injection ; RON ; Research Octane
- 刊名：Fuel
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：189
- 期：Complete
- 页码：131-140
- 全文大小：3484 K
文摘
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Transient PM emissions from 3 GDI and 1 PFI vehicles under the NEDC cycles were reported.
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The primary aggregate size distribution obtained from TEM image analysis was in consistent with the size distribution measured by the DMS500.
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Acceleration has great impact on the PM emissions under warm conditions, whilst the torque has a significant impact on the PFI vehicle PM emissions under cold conditions.
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TWC effect on nucleation particles was investigated under varying motor power and engine speed.