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Population Balances of Micron-Sized Aerosols in a Bipolar Ion Environment

Lòpez-Yglesias, Xerxes and Flagan, Richard C. (2013) Population Balances of Micron-Sized Aerosols in a Bipolar Ion Environment. Aerosol Science and Technology, 47 (6). pp. 681-687. ISSN 0278-6826. doi:10.1080/02786826.2013.783683. https://resolver.caltech.edu/CaltechAUTHORS:20130509-104957055

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Abstract

The present work re-examines the assumptions that are required for a steady-state charge distribution analysis to be valid. First, the common approximation that there are only 11 charge states available to the distribution is relaxed to allow for 201 charge states to be available to the particle distribution. This is found to have large repercussions on the behavior of the distribution for radii greater than 0.5 μm. The steady-state assumption itself is then re-examined by calculating the time required to reach steady state for many different ion-pair production rates and initial particle charge states as a function of radius. In the steady-state model, the ion populations are often assumed to decouple completely from the aerosol; this is shown to be false throughout the troposphere. Finally, the number of positive and negative charge states needed to accurately model a particle population of a given size is determined.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1080/02786826.2013.783683DOIArticle
http://www.tandfonline.com/doi/abs/10.1080/02786826.2013.783683PublisherArticle
ORCID:
AuthorORCID
Flagan, Richard C.0000-0001-5690-770X
Additional Information:© 2013 American Association for Aerosol Research. Received 17 January 2012; accepted 21 January 2013. We thank Andrew Downard for his time spent editing and discussing this manuscript. We would also like to thank the NASA Astrobiology Institute through the NAI Titan team managed at JPL under NASA Contract NAS7-03001 for the funding of this project, and the Ayrshire Foundation for their support in making computing resources available.
Funders:
Funding AgencyGrant Number
NASANAS7-03001
Ayrshire FoundationUNSPECIFIED
Issue or Number:6
DOI:10.1080/02786826.2013.783683
Record Number:CaltechAUTHORS:20130509-104957055
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130509-104957055
Official Citation:Population Balances of Micron-Sized Aerosols in a Bipolar Ion Environment Xerxes Lòpez-Yglesias, Richard C. Flagan Aerosol Science and Technology Vol. 47, Iss. 6, 2013
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38385
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:09 May 2013 20:12
Last Modified:09 Nov 2021 23:37

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