Particle growth analysis. Date refers to the day nucleation began. Get Price; The remaining 20% comes from fossil fuel processing, manufacturing and other mining or industrial activities. Federal efforts for mercury reduction focus primarily on the coal-fired power sector. Different types of coal and combinations of technology all play a role in .
Particle growth in the plumes of coal-fired power plants1.24 Мб [1] Submicron particle-size distributions were measured with 10-s resolution aboard the National Oceanic and Atmospheric Administration WP-3D Orion research aircraft in the plumes downwind of coal-fired power generation plants in the eastern United States and the urban areas of Nashville...
Eitgroth M. W. (1978) A numerical model of particle interactions in the plumes from coal-fired power plants and comparisons with field measurements. Ph.D. Thesis, At- mospheric Sciences Dept., University of Washington, Seattle, WA. Forrcst J. and Newman L. (1977) Further studies on the oxidation of sulfur dioxide in coal-fired power plant plumes.
Debora Griffin, Chris A. McLinden, Enrico Dammers, Cristen Adams, Chelsea Stockwell, Carsten Warneke, Ilann Bourgeois, Jeff Peischl, Thomas B. Ryerson, Kyle J ...
The rate of reaction between 03 and S02, when both are dissolved in aqueous droplets, has been shown in laboratory studies to be relatively fast (Penkett et al., 1979; Kunen et al., 1983; Brock and Durham, 1984; Hoffman and Jacob, 1984; Martin, 1984; Schwartz, 1984), but the rate of this reaction is pH dependent and decreases as the acidity of ...
Intense nucleation bursts have also been observed over the exposed surface zone at Mace Head (O'Dowd 2001; 2002a) and in industrial plumes that contain SO2 (Woo, 2001; Brock et al., 2002, 2003). ... measured in aircraft exhaust plumes. Journal of Geophysical Research D ... G., and Fehsenfeld, F. C. (2002): Particle growth in the plumes of ...
We evaluate the model with airborne data obtained in the plumes of various coal-fired power plants (2). Finally, we show how the effective downwind plume aerosol emissions can be greatly modified by both meteorological and background aerosol conditions. (1) Khairoutdinov, M. F., and D.A. Randall,. J. Atmos. Sci., 60, 607-625, 2003.
BibTeX @ARTICLE{Brock02particlegrowth, author = {Charles A. Brock and Rebecca A. Washenfelder and Michael Trainer and Thomas B. Ryerson and J. Charles Wilson and J. Michael Reeves and L. Gregory Huey and John S. Holloway and David D. Parrish and Fred C. Fehsenfeld}, title = {Particle growth in the plumes of coal-fired power plants}, journal = {J. Geophys.
The aging of refractory black carbon (rBC) aerosol by sulfate-driven chemistry has been constrained in coal-fired power-plant plumes using the NOAA WP-3D research aircraft during the Southern Nexus (SENEX) study, which took place in the Southeastern US in June and July of 2013. A Single Particle Soot Photometer (SP2) determined the microphysical properties of rBC-containing particles including ...
The EJ251 and EJ252 engines had multi-point sequential fuel injection and centrally located spark plugs. The EJ251 and EJ252 engines had two ignition coils (one for each pair of cylinders, i.e. 1-2 and 3-4) which fired the spark plugs directly twice per cycle.
5th Most Cited of ACP Papers from 2005 (of 241 papers) J. Alex Huffman, John T. Jayne, Frank Drewnick, Allison C. Aiken, Timothy Onasch, Douglas R. Worsnop, and Jose L. Jimenez. Design, Modeling, Optimization, and Experimental Tests of a Particle Beam Width Probe for the Aerodyne Aerosol Mass Spectrometer.
A pre-existing model of plume particles is examined to determine its usefulness for simulating particle formation and growth in coal-fired, cyclone boiler exhaust. Of greatest interest are fine particles (diameters of 0.2-2 μm) most likely to influence plume opacity. For the boiler examined, these particles consist primarily of water-sulfuric acid droplets formed from emitted SO 3.
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when transported with plume into the atmosphere. In the absence of clouds, the key pathway for the SO 2 removal from power plant plumes is gas-phase SO 2 oxidation (Springston et al., 2005). These changes may also lead to particle growth (Brock et al., 2002, 2003). When SO …
[1] A recently developed new particle formation (NPF)-explicit version of the Weather Research and Forecasting Chemistry (WRF-chem) model can explicitly calculate the growth and sink of nucleated clusters with 20 aerosol size bins from 1 nm to 10 µm in diameter. In this study, the model was used to investigate spatial and temporal variations in NPF event frequency and the concentrations of ...
Finally, we calculate particle-formation statistics of 330 coal-fired power plants in the US in 1997 and 2010, and the model results show a median decrease of 19% in particle formation rates from ...
Substantial particle volume growth was reported to associate with sulfate-rich plumes . The particle growth in HISP was enhanced after the condensation of SO 2 and taking up droplets. As a result, the in-cloud scavenging amplified the absorption and scattering of the HISP meanwhile reduced the residence time of plume's particles.
New particle formation in the fresh flue-gas plume from a coal-fired power plant: Effect of flue-gas cleaning June 2016 Atmospheric Chemistry and Physics 16(11):7485-7496
Particlegrowth coal-firedpower plants Charles Brock,1,2 Rebecca MichaelTrainer, CharlesWilson, MichaelReeves, GregoryHuey, Holloway,1,2 David GerhardHubler, 1,2 Fehsenfeld1,2 Received 28 June 2001; revised 17 October 2001; accepted 25 October 2001; published 29 June 2002. Submicronparticle-size distributions were measured 10-sresolution aboard ...
We detected similar anomalous polluted cloud lines in the long-term average satellite data, where cloud response to aerosol over a long time is recorded. Polluted cloud tracks are induced by various aerosol sources like oil refineries, smelters, coal-fired power plants, …
Aerosol formation and growth in coal-fired power-plant plumes: Linking plume-scale processes to global aerosols and climate. View/ Open. Main article (25.14Mb) P6 parametrization Fortran 90 code (26.61Kb) Date . Author. Stevens, Robin. Metadata Show full item record.
In plumes that were enhanced in VOCs but not in SO2, and in the plume of the Houston urban center, no particle volume growth with increasing plume oxidation was detected.
The study period (from June to August of 2019) was characterized by 67 NPF events, 16 undefined events and 13 non-events days. Following Rose et al. (2017) criteria, only those NPF events referred as type I, i.e. with clear particle growth from smallest sizes, were selected to investigate the contribution of NPF events on CCN concentrations.
Sources of UFPs in the urban ambient atmosphere include primary emissions of motor vehicles and coal-fired power plants (Morawska et al., 2008, Wehner et al., 1999, Zhu et al., 2002) and secondary particle nucleation (Brock et al., 2002, Holmes, 2007, Kulmala and Kerminen, 2008).
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Nucleation in coal-fired power-plant plumes can greatly contribute to particle no. concns. near source regions. The changing emissions rates of SO2 and NOx due to pollution-control technologies over recent decades may have had a significant effect on aerosol formation and growth in the plumes with ultimate implications for climate and human health.
Cover Articles in Geosphysical Research Letters (2010) and the Journal of Geophysical Research-Atmospheres Special Issue on EPA Supersites (2005) Excellence in Reviewing Award from the Journal Environmental Science & Technology, 2003. NASA Group Achievement Awards for the CRYSTAL-FACE Field Mission, 2003. ICREA Fellowship, Spain, declined, 2001
