DOI: 10.1029/2012JD018389
论文题名: Fine-particle emissions from solid biofuel combustion studied with single-particle mass spectrometry: Identification of markers for organics, soot, and ash components
作者: Pagels J. ; Dutcher D.D. ; Stolzenburg M.R. ; Mcmurry P.H. ; Gälli M.E. ; Gross D.S.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 2 起始页码: 859
结束页码: 870
语种: 英语
Scopus关键词: Aerodynamics
; Chlorine compounds
; Fuels
; Mass spectrometers
; Mass spectrometry
; Shape memory effect
; Soot
; Stoves
; Aerodynamic diameters
; Aerosol time-of-flight mass spectrometers
; Chemical signatures
; Combustion temperatures
; Exhaust temperature
; Flaming combustion
; Scanning mobility particle sizer
; Vacuum aerodynamic diameters
; Combustion
; aerodynamics
; ash
; atmospheric pollution
; biofuel
; carbon monoxide
; combustion
; emission
; genetic marker
; mass spectrometry
; nitrogen oxides
; particulate matter
; size distribution
; sulfate
; Zea mays
英文摘要: The effects of combustion phase and fuel on smoke particle emissions from a wood stove operated with three different wood fuels and from a corn stove were investigated. A singleparticle mass spectrometer (aerosol time of flight mass spectrometer (ATOFMS)) was used for time- And size-resolved chemical signatures and a scanning mobility particle sizer (SMPS) was used for online mobility size distributions. Markers of particle phase organics and elemental carbon, PM 1.5 , and CO emissions were strongly reduced for the corn stove compared to the wood stove. This is because the more controlled fuel and air supply in the corn stove result in more complete combustion. NOx emissions and particle phase phosphates showed the opposite trend.Marker ions and particle types associated with soot and alkali salts such as potassium chloride and potassium sulfates dominated during flaming combustion and were correlated with increased exhaust temperatures and reduced CO emissions. Marker ions of hydrocarbons and oxidized organics as well as a particle cluster type with a strong organic signature were associated with reduced combustion temperature and increased CO levels, observed during start up from cold stove, addition of fuel, and combustion with reduced air supply. Two different particle types were identified in corn experiments when particles were classified according to mobility before they were measured with the ATOFMS. "Less massive" particles contained mostly ash and soot and had vacuum aerodynamic diameters that were nearly independent of mobility diameter. "More massive" particles had aerodynamic diameters that increased linearly with mobility diameter, indicating approximately spherical shapes, and were hypothesized to consist of organics. © 2012. American Geophysical Union. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64021
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department OfMechanical Engineering, Particle Technology Laboratory, University of Minnesota Twin Cities, Minneapolis, MN, United States; Ergonomics and Aerosol Technology, Lund University, PO box 118, SE 221 00 Lund, Sweden; TSI Inc., Shoreview, MN, United States; Department of Chemistry, Carleton College, Northfield, MN, United States
Recommended Citation:
Pagels J.,Dutcher D.D.,Stolzenburg M.R.,et al. Fine-particle emissions from solid biofuel combustion studied with single-particle mass spectrometry: Identification of markers for organics, soot, and ash components[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(2)