| DOI: | 10.1016/j.atmosenv.2015.01.044
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| Scopus记录号: | 2-s2.0-84936980629
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| 论文题名: | Performance of optimised SCR retrofit buses under urban driving and controlled conditions |
| 作者: | Carslaw D; C; , Priestman M; , Williams M; L; , Stewart G; B; , Beevers S; D
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| 刊名: | Atmospheric Environment
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| ISSN: | 0168-2563
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| EISSN: | 1573-515X
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| 出版年: | 2015
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| 卷: | 105 | | 起始页码: | 70
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| 结束页码: | 77
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| 语种: | 英语
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| 英文关键词: | Limit value
; Nitrogen dioxide
; Oxides of nitrogen
; Selective catalytic reduction
; Vehicle emission remote sensing
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| Scopus关键词: | Amphibious vehicles
; Buses
; Emission control
; Engines
; Nitric oxide
; Nitrogen
; Nitrogen oxides
; Reduction
; Remote sensing
; Retrofitting
; Roads and streets
; Vehicles
; Continuously regenerating traps
; Controlled conditions
; Limit values
; Nitrogen dioxides
; Oxides of nitrogen
; Remote sensing instruments
; Selective catalytic reduction systems
; Vehicle emission
; Selective catalytic reduction
; nitric oxide
; nitrogen dioxide
; catalysis
; emission control
; measurement method
; nitrogen oxides
; optimization
; performance assessment
; remote sensing
; urban area
; Article
; car driving
; catalysis
; environmental temperature
; exhaust gas
; measurement
; priority journal
; reduction
; remote sensing
; United Kingdom
; urban area
; England
; London [England]
; United Kingdom
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| Scopus学科分类: | Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
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| 英文摘要: | This work presents the first comprehensive real-world emissions results from urban buses retrofitted with an optimised low-NO2 selective catalytic reduction (SCR) system. The SCRT system combines a CRT (Continuously Regenerating Trap) to reduce particle emissions and SCR to reduce NOx emissions. The optimised low-NO2 SCRT was designed to work under urban conditions where the vehicle exhaust gas temperature is often too low for many SCR systems to work efficiently. The system was extensively tested through on-road and test track measurements using a vehicle emission remote sensing instrument capable of measuring both nitric oxide (NO) and nitrogen dioxide (NO2). Over 700 on-road measurements of the SCRT system were made in London. Compared with identical buses operating under the same conditions fitted with a CRT, NO2 emissions were reduced by 61% and total NOx by 45%. Under test track conditions reductions in NOx of 77% were observed. The test track results do reveal however that compared with an original Euro III bus without a CRT, the SCRT retrofit bus emissions of NO2 are 50% higher. Engine-out and tailpipe measurements of several important engine parameters under test track conditions showed the important effect of SCR inlet temperature on NOx conversion efficiency. Overall, we conclude that retrofitting urban buses to use low-NO2 SCRT systems is an effective method for delivering NOx and NO2 emissions reduction. © 2015 Elsevier Ltd. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/81971
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | King's College London, Environmental Research Group, Franklin Wilkins Building, 150 Stamford Street, London, United Kingdom
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| Recommended Citation: | |
Carslaw D,C,, Priestman M,et al. Performance of optimised SCR retrofit buses under urban driving and controlled conditions[J]. Atmospheric Environment,2015-01-01,105
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