DOI: 10.1016/j.atmosenv.2017.10.058
Scopus记录号: 2-s2.0-85032381779
论文题名: Tuneable diode laser spectroscopy correction factor investigation on ammonia measurement
作者: Li N ; , El-Hamalawi A ; , Baxter J ; , Barrett R ; , Wheatley A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 172 起始页码: 12
结束页码: 15
语种: 英语
英文关键词: Ammonia
; Diesel engine
; Emission
; Exhaust gas
; Tuneable diode laser
Scopus关键词: Ammonia
; Digital to analog conversion
; Diodes
; Engines
; Exhaust gases
; Exhaust systems (engine)
; Laser spectroscopy
; Neutron emission
; Nitrogen oxides
; Semiconductor lasers
; Accurate measurement
; Ammonia measurements
; Correction factors
; Diesel engine aftertreatment systems
; Exhaust temperature
; Influential factors
; Interference effects
; Selective catalyst reduction
; Diesel engines
; ammonia
; carbon dioxide
; oxygen
; water
; ammonium
; catalyst
; diesel engine
; error correction
; exhaust emission
; instrumentation
; laser
; measurement method
; nitrous oxide
; spectroscopy
; Article
; pressure
; priority journal
; spectroscopy
; temperature
; tuneable diode laser spectroscopy
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Current diesel engine aftertreatment systems, such as Selective Catalyst Reduction (SCR) use ammonia (NH3) to reduce Nitrogen Oxides (NOx) into Nitrogen (N2) and water (H2O). However, if the reaction between NH3 and NOx is unbalanced, it can lead either NH3 or NOx being released into the environment. As NH3 is classified as a dangerous compound in the environment, its accurate measurement is essential. Tuneable Diode Laser (TDL) spectroscopy is one of the methods used to measure raw emissions inside engine exhaust pipes, especially NH3. This instrument requires a real-time exhaust temperature, pressure and other interference compounds in order to adjust itself to reduce the error in NH3 readings. Most researchers believed that exhaust temperature and pressure were the most influential factors in TDL when measuring NH3 inside exhaust pipes. The aim of this paper was to quantify these interference effects on TDL when undertaking NH3 measurement. Surprisingly, the results show that pressure was the least influential factor when compared to temperature, H2O, CO2 and O2 when undertaking NH3 measurement using TDL. © 2017 The Author(s) Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83141
Appears in Collections: 气候变化事实与影响
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作者单位: Centre for Innovation and Collaborative Construction Engineering, Loughborough University, Leicestershire, England, United Kingdom; School of Civil and Building Engineering, Loughborough University, Leicestershire, England, United Kingdom; Caterpillar Inc. Global Engine Development UK, Peterborough, England, United Kingdom
Recommended Citation:
Li N,, El-Hamalawi A,, Baxter J,et al. Tuneable diode laser spectroscopy correction factor investigation on ammonia measurement[J]. Atmospheric Environment,2018-01-01,172