China 6 EGR gasoline vehicles without a GPF may struggle to meet the potential SPN10 limit
Particles larger than 10 nm from engine exhaust are gaining global concerns. In light of this, to investigate how EGR affects gasoline vehicle SPN10 (solid particles larger than 10 nm) emissions, seven gasoline vehicles (hybrid or conventional) were studied experimentally. The results revealed that...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Environment International |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0160412023005792 |
| _version_ | 1797615974469337088 |
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| author | Yachao Wang Sheng Su Yitu Lai Wanyou Luo Pan Hou Tao Lyu Yunshan Ge |
| author_facet | Yachao Wang Sheng Su Yitu Lai Wanyou Luo Pan Hou Tao Lyu Yunshan Ge |
| author_sort | Yachao Wang |
| collection | DOAJ |
| description | Particles larger than 10 nm from engine exhaust are gaining global concerns. In light of this, to investigate how EGR affects gasoline vehicle SPN10 (solid particles larger than 10 nm) emissions, seven gasoline vehicles (hybrid or conventional) were studied experimentally. The results revealed that EGR vehicles risk failing the current limit (6 * 1011 #/km) more than those without EGR if the cut-off size was tightened from 23 nm to 10 nm. More specifically, during the WLTC test, EGR increased the SPN10 emission factors by 2 ∼ 3 times depending on vehicle powertrains (conventional or hybrid). Notably, SPN10 emissions increased significantly when EGR was actively engaged but showed a decrease when the EGR rate remained constant. EGR and the enriched fuel–air mixture are the critical reasons for the increased SPN10. |
| first_indexed | 2024-03-11T07:34:38Z |
| format | Article |
| id | doaj.art-1e311f0b7eee42e99a29a91eea043452 |
| institution | Directory Open Access Journal |
| issn | 0160-4120 |
| language | English |
| last_indexed | 2024-03-11T07:34:38Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Environment International |
| spelling | doaj.art-1e311f0b7eee42e99a29a91eea0434522023-11-17T05:24:55ZengElsevierEnvironment International0160-41202023-11-01181108306China 6 EGR gasoline vehicles without a GPF may struggle to meet the potential SPN10 limitYachao Wang0Sheng Su1Yitu Lai2Wanyou Luo3Pan Hou4Tao Lyu5Yunshan Ge6School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China; Department of Energy Sciences, Lund University, Lund 22100, SwedenCollege of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen 361021, China; Xiamen Environment Protection Vehicle Emission Control Technology Center, Xiamen 361023, China; Corresponding authors at: College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen 361021, China (S. Su); School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China (Y. Ge).Xiamen Environment Protection Vehicle Emission Control Technology Center, Xiamen 361023, ChinaXiamen Environment Protection Vehicle Emission Control Technology Center, Xiamen 361023, ChinaXiamen Environment Protection Vehicle Emission Control Technology Center, Xiamen 361023, ChinaXiamen Environment Protection Vehicle Emission Control Technology Center, Xiamen 361023, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China; Corresponding authors at: College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen 361021, China (S. Su); School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China (Y. Ge).Particles larger than 10 nm from engine exhaust are gaining global concerns. In light of this, to investigate how EGR affects gasoline vehicle SPN10 (solid particles larger than 10 nm) emissions, seven gasoline vehicles (hybrid or conventional) were studied experimentally. The results revealed that EGR vehicles risk failing the current limit (6 * 1011 #/km) more than those without EGR if the cut-off size was tightened from 23 nm to 10 nm. More specifically, during the WLTC test, EGR increased the SPN10 emission factors by 2 ∼ 3 times depending on vehicle powertrains (conventional or hybrid). Notably, SPN10 emissions increased significantly when EGR was actively engaged but showed a decrease when the EGR rate remained constant. EGR and the enriched fuel–air mixture are the critical reasons for the increased SPN10.http://www.sciencedirect.com/science/article/pii/S0160412023005792Exhaust gas recirculation (EGR)SPN10China 6 vehiclesGPF |
| spellingShingle | Yachao Wang Sheng Su Yitu Lai Wanyou Luo Pan Hou Tao Lyu Yunshan Ge China 6 EGR gasoline vehicles without a GPF may struggle to meet the potential SPN10 limit Environment International Exhaust gas recirculation (EGR) SPN10 China 6 vehicles GPF |
| title | China 6 EGR gasoline vehicles without a GPF may struggle to meet the potential SPN10 limit |
| title_full | China 6 EGR gasoline vehicles without a GPF may struggle to meet the potential SPN10 limit |
| title_fullStr | China 6 EGR gasoline vehicles without a GPF may struggle to meet the potential SPN10 limit |
| title_full_unstemmed | China 6 EGR gasoline vehicles without a GPF may struggle to meet the potential SPN10 limit |
| title_short | China 6 EGR gasoline vehicles without a GPF may struggle to meet the potential SPN10 limit |
| title_sort | china 6 egr gasoline vehicles without a gpf may struggle to meet the potential spn10 limit |
| topic | Exhaust gas recirculation (EGR) SPN10 China 6 vehicles GPF |
| url | http://www.sciencedirect.com/science/article/pii/S0160412023005792 |
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