Brownian coagulation of aerosols in transition regime

Chen, Zhong-Li

doi:10.2298/tsci1205362c

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…It is assumed that the most important mechanism responsible for the coagulation of nanometer particles in the air is Brownian diffusion (Otto and Fissan 1999;Chen 2012), as a collective average behavior of all particles. Forms constructed in this way resemble diffusion-limited cluster-cluster agglomerates (DLCA) (Eggersdorfer and Pratsinis 2014).…”

Section: Methodsmentioning

confidence: 99%

Introduction of fractal-like agglomerates to the algorithm for calculating surface area concentrations of PM1

Bełkowska-Wołoczko

2018

Air Qual Atmos Health

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A method of estimating, in urban indoor environments, human exposure to particulate matter with aerodynamic diameter of less than 1 μm (PM1, also referred in the literature as fine-mode or nanometer (nm) particulate matter) is proposed. It defines a measure of exposure as a surface area concentration of PM1 and the means of its calculation. The calculation algorithm was constructed using statistical parameters of particulate matter lognormal distribution, with the use of Hatch-Choate equations and the Maynard method, and extended by the accumulation stage physics of PM1 fraction, including Eggersdorfer's and Pratsinis's findings. Introduction of structure and dynamics of fractal-like agglomerates into the calculation algorithm significantly increased estimation accuracy of surface area concentrations, in relation to the standard Maynard method, which calculates surface area concentrations of only spherical particles.

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Section: Methodsmentioning

confidence: 99%