1
|
Wang H, Zhai T, Zhang L, Li J, Xue Z, Wang J, Ji Z, Li W, Wang Y. The effect of various urea-in-water solution types on exhaust particle number emission. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:108825-108831. [PMID: 37759051 DOI: 10.1007/s11356-023-29971-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023]
Abstract
In order to qualitatively evaluate the impact of urea-in-water solution on the particle number emission, five different urea types were chosen under diesel engine bench test. The results show that compared to the instantaneous particle concentrations without injection, the instantaneous particle concentrations with injection increase distinctly, which are larger around 0.3-1.2 times than that without urea-in-water solution. At high speed phase, the instantaneous particle concentrations with urea-in-water solution injection rise obviously, especially for C and E solutions. In addition, the particle size distribution characteristic does not change with the urea-in-water solution dosing. The PN emission factors follow the sequence of C solution > E solution > A solution > B solution > D solution. It is deduced that the metallic element contents in the urea-in-water solution play a key role for the PN emission factor. In the future, the particle formation due to urea-in-water solution injection should be given more attention.
Collapse
Affiliation(s)
- Haohao Wang
- Weichai Power Co., Ltd., Weifang, 261061, People's Republic of China
| | - Tianyu Zhai
- Weichai Power Co., Ltd., Weifang, 261061, People's Republic of China.
| | - Lijun Zhang
- Weichai Power Co., Ltd., Weifang, 261061, People's Republic of China
| | - Jiachen Li
- National Laboratory of Auto Performance & Emission Test, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Zhentao Xue
- Weichai Power Co., Ltd., Weifang, 261061, People's Republic of China
| | - Jiaxing Wang
- Weichai Power Co., Ltd., Weifang, 261061, People's Republic of China
| | - Zhongrui Ji
- Weichai Power Co., Ltd., Weifang, 261061, People's Republic of China
| | - Wanyang Li
- Weichai Power Co., Ltd., Weifang, 261061, People's Republic of China
| | - Yibao Wang
- Weichai Power Co., Ltd., Weifang, 261061, People's Republic of China
| |
Collapse
|