A new inorganic atmospheric aerosol phase equilibrium model (UHAERO)
Item
Title (Dublin Core)
A new inorganic atmospheric aerosol phase equilibrium model (UHAERO)
Description (Dublin Core)
A variety of thermodynamic models have been developed to predict inorganic gas-aerosol equilibrium. To achieve computational efficiency a number of the models rely on a priori specification of the phases present in certain relative humidity regimes. Presented here is a new computational model, named UHAERO, that is both efficient and rigorously computes phase behavior without any a priori specification. The computational implementation is based on minimization of the Gibbs free energy using a primal-dual method, coupled to a Newton iteration. The mathematical details of the solution are given elsewhere. The model computes deliquescence behavior without any a priori specification of the relative humidities of deliquescence. Also included in the model is a formulation based on classical theory of nucleation kinetics that predicts crystallization behavior. Detailed phase diagrams of the sulfate/nitrate/ammonium/water system are presented as a function of relative humidity at 298.15 K over the complete space of composition.
Creator (Dublin Core)
Amundson, N. R.
Caboussat, A.
He, J. W.
Martynenko, A. V.
Savarin, V. B.
Seinfeld, J. H.
Yoo, K. Y.
Date (Dublin Core)
2018-06-28
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acp-6-975-2006
https://acp.copernicus.org/articles/6/975/2006/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
