Evaluating the In-Service Emissions of High-Mileage Dedicated Methanol-Fueled Passenger Cars: Regulated and Unregulated Emissions
This paper reports the regulated, unregulated, and particle number emissions from six high-mileage, China-4 compliant, dedicated methanol taxis over the new European driving cycle. Compared to new vehicles, carbon monoxide, total hydrocarbons, and nitrogen oxides emissions from in-use methanol taxis...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/11/2680 |
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| author | Sheng Su Yunshan Ge Xin Wang Mengzhu Zhang Lijun Hao Jianwei Tan Fulu Shi Dongdong Guo Zhengjun Yang |
| author_facet | Sheng Su Yunshan Ge Xin Wang Mengzhu Zhang Lijun Hao Jianwei Tan Fulu Shi Dongdong Guo Zhengjun Yang |
| author_sort | Sheng Su |
| collection | DOAJ |
| description | This paper reports the regulated, unregulated, and particle number emissions from six high-mileage, China-4 compliant, dedicated methanol taxis over the new European driving cycle. Compared to new vehicles, carbon monoxide, total hydrocarbons, and nitrogen oxides emissions from in-use methanol taxis increased by 76.1%, 40.2%, and 179.8%, respectively. Still, they managed to meet China-4, indicating good in-service conformity. In the test fleet, the test vehicles with longer mileage inclined to emit higher carbon monoxide and total hydrocarbons emissions. Formaldehyde emissions from these field-aged taxis ranged from 1.06 to 2.33 mg/km, which were similar to or lower than those from previously reported pre-Euro-5 gasoline vehicles. One of the six test vehicles produced extraordinarily high unburned methanol emissions, which was about ten times higher than the rest of the properly operating vehicles due to possible misfire, suggesting that unburned methanol will be the primary stress for future methanol applications. Compared to the regulated emissions, formaldehyde and unburned methanol emissions deteriorated at faster rates along with catalyst aging. Particle number emissions from these methanol taxis remained low even after high-mileage driving, suggesting the compatibility of methanol fueling in future particle number compliance. |
| first_indexed | 2024-03-10T19:35:45Z |
| format | Article |
| id | doaj.art-7da327a9f6df42ca83322f335abeebde |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T19:35:45Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-7da327a9f6df42ca83322f335abeebde2023-11-20T01:46:25ZengMDPI AGEnergies1996-10732020-05-011311268010.3390/en13112680Evaluating the In-Service Emissions of High-Mileage Dedicated Methanol-Fueled Passenger Cars: Regulated and Unregulated EmissionsSheng Su0Yunshan Ge1Xin Wang2Mengzhu Zhang3Lijun Hao4Jianwei Tan5Fulu Shi6Dongdong Guo7Zhengjun Yang8National Laboratory of Automotive Performance & Emission Test, Beijing Institute of Technology, Beijing 100081, ChinaNational Laboratory of Automotive Performance & Emission Test, Beijing Institute of Technology, Beijing 100081, ChinaNational Laboratory of Automotive Performance & Emission Test, Beijing Institute of Technology, Beijing 100081, ChinaNational Laboratory of Automotive Performance & Emission Test, Beijing Institute of Technology, Beijing 100081, ChinaNational Laboratory of Automotive Performance & Emission Test, Beijing Institute of Technology, Beijing 100081, ChinaNational Laboratory of Automotive Performance & Emission Test, Beijing Institute of Technology, Beijing 100081, ChinaBeijing Vehicle Emissions Management Center, Beijing 100176, ChinaNational Laboratory of Automotive Performance & Emission Test, Beijing Institute of Technology, Beijing 100081, ChinaNational Laboratory of Automotive Performance & Emission Test, Beijing Institute of Technology, Beijing 100081, ChinaThis paper reports the regulated, unregulated, and particle number emissions from six high-mileage, China-4 compliant, dedicated methanol taxis over the new European driving cycle. Compared to new vehicles, carbon monoxide, total hydrocarbons, and nitrogen oxides emissions from in-use methanol taxis increased by 76.1%, 40.2%, and 179.8%, respectively. Still, they managed to meet China-4, indicating good in-service conformity. In the test fleet, the test vehicles with longer mileage inclined to emit higher carbon monoxide and total hydrocarbons emissions. Formaldehyde emissions from these field-aged taxis ranged from 1.06 to 2.33 mg/km, which were similar to or lower than those from previously reported pre-Euro-5 gasoline vehicles. One of the six test vehicles produced extraordinarily high unburned methanol emissions, which was about ten times higher than the rest of the properly operating vehicles due to possible misfire, suggesting that unburned methanol will be the primary stress for future methanol applications. Compared to the regulated emissions, formaldehyde and unburned methanol emissions deteriorated at faster rates along with catalyst aging. Particle number emissions from these methanol taxis remained low even after high-mileage driving, suggesting the compatibility of methanol fueling in future particle number compliance.https://www.mdpi.com/1996-1073/13/11/2680methanolregulated emissionsformaldehydeunburned methanolparticle number |
| spellingShingle | Sheng Su Yunshan Ge Xin Wang Mengzhu Zhang Lijun Hao Jianwei Tan Fulu Shi Dongdong Guo Zhengjun Yang Evaluating the In-Service Emissions of High-Mileage Dedicated Methanol-Fueled Passenger Cars: Regulated and Unregulated Emissions Energies methanol regulated emissions formaldehyde unburned methanol particle number |
| title | Evaluating the In-Service Emissions of High-Mileage Dedicated Methanol-Fueled Passenger Cars: Regulated and Unregulated Emissions |
| title_full | Evaluating the In-Service Emissions of High-Mileage Dedicated Methanol-Fueled Passenger Cars: Regulated and Unregulated Emissions |
| title_fullStr | Evaluating the In-Service Emissions of High-Mileage Dedicated Methanol-Fueled Passenger Cars: Regulated and Unregulated Emissions |
| title_full_unstemmed | Evaluating the In-Service Emissions of High-Mileage Dedicated Methanol-Fueled Passenger Cars: Regulated and Unregulated Emissions |
| title_short | Evaluating the In-Service Emissions of High-Mileage Dedicated Methanol-Fueled Passenger Cars: Regulated and Unregulated Emissions |
| title_sort | evaluating the in service emissions of high mileage dedicated methanol fueled passenger cars regulated and unregulated emissions |
| topic | methanol regulated emissions formaldehyde unburned methanol particle number |
| url | https://www.mdpi.com/1996-1073/13/11/2680 |
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