| DOI: | 10.1016/j.atmosenv.2016.11.038
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| Scopus记录号: | 2-s2.0-85006085682
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| 论文题名: | Measuring NMHC and NMOG emissions from motor vehicles via FTIR spectroscopy |
| 作者: | Gierczak C; A; , Kralik L; L; , Mauti A; , Harwell A; L; , Maricq M; M
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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: | 2017
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| 卷: | 150 | | 起始页码: | 425
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| 结束页码: | 433
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| 语种: | 英语
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| 英文关键词: | Engine exhaust
; FTIR
; NMHC
; NMOG
; Vehicle emissions
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| Scopus关键词: | Environmental Protection Agency
; Environmental regulations
; Exhaust systems (engine)
; Hydrocarbons
; Ionization of gases
; Methane
; Vehicles
; Flame ionization detection
; FTIR
; Light duty vehicles
; NMHC
; NMOG
; Non-methane hydrocarbons
; United states environmental protection agencies
; Vehicle emission
; Fourier transform infrared spectroscopy
; acetaldehyde
; alcohol
; carbon
; formaldehyde
; gasoline
; hydrocarbon
; methane
; non methane hydrocarbon
; non methane organic gas
; toluene
; unclassified drug
; automobile
; chemical compound
; engine
; exhaust emission
; FTIR spectroscopy
; instrumentation
; measurement method
; motorway
; nonmethane hydrocarbon
; traffic emission
; Article
; catalyst
; exhaust gas
; flame ionization detection
; infrared spectroscopy
; limit of detection
; measurement accuracy
; motor vehicle
; priority journal
; United States
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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: | The determination of non-methane organic gases (NMOG) emissions according to United States Environmental Protection Agency (EPA) regulations is currently a multi-step process requiring separate measurement of various emissions components by a number of independent on-line and off-line techniques. The Fourier transform infrared spectroscopy (FTIR) method described in this paper records all required components using a single instrument. It gives data consistent with the regulatory method, greatly simplifies the process, and provides second by second time resolution. Non-methane hydrocarbons (NMHCs) are measured by identifying a group of hydrocarbons, including oxygenated species, that serve as a surrogate for this class, the members of which are dynamically included if they are present in the exhaust above predetermined threshold levels. This yields an FTIR equivalent measure of NMHC that correlates within 5% to the regulatory flame ionization detection (FID) method. NMOG is then determined per regulatory calculation solely from FTIR recorded emissions of NMHC, ethanol, acetaldehyde, and formaldehyde, yielding emission rates that also correlate within 5% with the reference method. Examples are presented to show how the resulting time resolved data benefit aftertreatment development for light duty vehicles. © 2016 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/82232
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Research & Advanced Engineering, Ford Motor Company, P.O. Box 2053, MD 3179, Dearborn, MI, United States
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| Recommended Citation: | |
Gierczak C,A,, Kralik L,et al. Measuring NMHC and NMOG emissions from motor vehicles via FTIR spectroscopy[J]. Atmospheric Environment,2017-01-01,150
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