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Title: Mixing state evolution of agglomerating particles in an aerosol chamber: Comparison of measurements and particle-resolved simulations

Journal Article · · Aerosol Science and Technology
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [1]
  1. Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
  2. Boston College, Chestnut Hill, MA (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
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This article introduces a validation study of the stochastic particle-resolved aerosol model PartMC with experimental data from an aerosol chamber experiment. For the experiment, a scanning mobility particle sizer and a single-particle soot photometer were used to monitor the aerosol mixing state evolution of two initially externally-mixed aerosol populations of ammonium sulfate and black carbon particles undergoing agglomeration. We applied an efficient optimization algorithm (ProSRS) to determine several unconstrained simulation parameters and were able to successfully reproduce number concentrations and size distributions of mixed particles that formed by agglomeration. The PartMC modeling method in conjunction with the optimization procedure provides a tool for detailed comparisons of chamber experiments and modeling, where aerosol mixing state is the focus of investigation.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
SC0012704
OSTI ID:
1561250
Report Number(s):
BNL--212073-2019-JAAM
Journal Information:
Aerosol Science and Technology, Journal Name: Aerosol Science and Technology Journal Issue: 11 Vol. 53; ISSN 0278-6826
Publisher:
American Association for Aerosol ResearchCopyright Statement
Country of Publication:
United States
Language:
English

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