Modelling dynamic aerosol processes for indoor ultrafine particles

Donghyun Rim, Lance Wallace, Andrew Persily, Jung Il Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study has investigated aerosol transformation processes for four common sources of indoor ultrafine particles (UFP): a gas stove, an electric stove, a candle, and a hair dryer. For each of the four UFP sources, the temporal change in particle size distribution (3 nm to 100 nm) was measured during particle decay. An analytical model was developed based on the discrete general dynamic mass-balance equation considering coagulation, deposition, and ventilation. The results indicate that in addition to particle deposition and ventilation loss, coagulation is a dominant physical process for changes in indoor UFP size distributions. Especially at high UFP concentrations, coagulation was found to be a dominant process that transforms small particles to larger sizes in a short time.

Original languageEnglish (US)
Title of host publication12th International Conference on Indoor Air Quality and Climate 2011
Pages2290-2296
Number of pages7
Publication statusPublished - Dec 1 2011
Event12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States
Duration: Jun 5 2011Jun 10 2011

Publication series

Name12th International Conference on Indoor Air Quality and Climate 2011
Volume3

Other

Other12th International Conference on Indoor Air Quality and Climate 2011
CountryUnited States
CityAustin, TX
Period6/5/116/10/11

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All Science Journal Classification (ASJC) codes

  • Pollution

Cite this

Rim, D., Wallace, L., Persily, A., & Choi, J. I. (2011). Modelling dynamic aerosol processes for indoor ultrafine particles. In 12th International Conference on Indoor Air Quality and Climate 2011 (pp. 2290-2296). (12th International Conference on Indoor Air Quality and Climate 2011; Vol. 3).