Abstract
Porous foam provides an inexpensive, light-weight and effective medium to capture physiologically-relevant aerosol fractions. It can be manufactured to have a wide range of properties relevant to aerosol deposition. A series of laboratory experiments were conducted to measure particle penetration though porous foam media of varying pore size and foam length. Both solid and liquid aerosols (0.01-10 μm diameter) were tested using a Sequenzial Mobility Particle Sizer or Aerodynamic Particle Sizer to count and size particles penetrating the foam. With this data, an existing semi-empirical model was improved upon to predict particle penetration through a foam of a given fiber diameter, and thickness. The model is based on three dimensionless parameters (St, Ng, Pe) that account for inertial, gravitational, and diffusive modes of deposition, respectively.
Original language | English (US) |
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Pages (from-to) | 563-572 |
Number of pages | 10 |
Journal | Journal of Aerosol Science |
Volume | 40 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2009 |
Externally published | Yes |
Keywords
- Aerosol penetration model
- Aerosol sampling
- Porous foam
ASJC Scopus subject areas
- Environmental Engineering
- Pollution
- Mechanical Engineering
- Fluid Flow and Transfer Processes
- Atmospheric Science