| Title: | Real-world emission characteristics of an ocean-going vessel through long sailing measurement |
| Author(s): | Yang L; Zhang Q; Zhang Y; Lv Z; Wu L; Mao H; |
| Address: | "Tianjin Key Laboratory of Urban Transport Emission Research & State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China. Tianjin Key Laboratory of Urban Transport Emission Research & State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China. Electronic address: zhangqijun@nankai.edu.cn" |
| DOI: | 10.1016/j.scitotenv.2021.152276 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "To quantify the emission characteristics of large ocean-going ships, onboard measurements were carried out for a large ocean-going vessel using portable emission measurement system (PEMS). The emission factors (EFs) of conventional pollutants and volatile organic compounds (VOCs) were greatly influenced by real-world operating conditions and engine loads. The sulfur dioxide (SO(2)) and particulate matter (PM) emissions were mainly influenced by fuel type. The particle size distribution basically showed a single peak pattern, with nucleation mode particles as the main particles and the peak particle sizes ranging between 30 nm and 50 nm. The EFs for particle number (PN) ranged from 2.82 x 10(16) to 4.49 x 10(16) #/kwh. Carbonaceous components accounted for approximately 31.8% to 41.6% of the PM. SO(4)(2-), NH(4)(+), Ca(2+), Na(+), and NO(3)(-) were dominant in water-soluble ions, while V and Ni were high-concentration metal elements, with the ratio of V: Ni ranging from 0.17 to 0.33. Increase in driving speed can lead to the increase in VOCs emissions. Our study presented a comprehensive test method with PEMS, which provides a reference for acquiring future real-world EFs. However, only one representative ship in China using a specific fuel was selected for the test, so it is important to characterize a broader range of ships and fuels" |
| Keywords: | *Air Pollutants/analysis Oceans and Seas Particle Size Particulate Matter/analysis Ships *Vehicle Emissions/analysis Emission factors Ocean-going Pems Ship emission VOCs; |
| Notes: | "MedlineYang, Lei Zhang, Qijun Zhang, Yanjie Lv, Zongyan Wu, Lin Mao, Hongjun eng Netherlands 2021/12/14 Sci Total Environ. 2022 Mar 1; 810:152276. doi: 10.1016/j.scitotenv.2021.152276. Epub 2021 Dec 10" |
