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Multicomponent aerosol dynamics model with gas/particle transport and modal approach

Title
Multicomponent aerosol dynamics model with gas/particle transport and modal approach
Authors
Jung C.H.Kim Y.P.Lee K.W.
Ewha Authors
김용표
SCOPUS Author ID
김용표scopus
Issue Date
2004
Journal Title
Environmental Engineering Science
ISSN
1092-8758JCR Link
Citation
Environmental Engineering Science vol. 21, no. 4, pp. 437 - 450
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
A multicomponent aerosol dynamic model, that is suitable for regional/global chemical transport models, was developed by combining a thermodynamic module and a modal approach module and by using a dynamic gas/aerosol relationship. The modal approach, which represents the particle size distribution as the superposition of three log-normal size distributions without any assumption on the characteristics of the log-normal distribution, was introduced for simulating the evolution of the chemical species of aerosol particles efficiently. The dynamic approach was utilized for gas/particle transport mechanisms to simulate mass transfer between the gas phase and size-resolved aerosol particles. Both dynamic approaches-the local equilibrium method and global equilibrium method-are compared, and the importance of dynamic approach compared to the equilibrium approach is demonstrated. It is also shown that the global equilibrium method can reduce the computing time significantly compared to the conventional local equilibrium method without much loss of accuracy.
DOI
10.1089/1092875041358476
Appears in Collections:
공과대학 > 화공신소재공학과 > Journal papers
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