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| Titel: |
Experimental Study of Submicrometer and Ultrafine Particle Penetration and Pressure Drop for High Efficiency Filters |
| Auteur: |
VanOsdell, Douglas W. Liu, Benjamin Y. H. Rubow, Kenneth L. Pui, David Y. H. |
| Verschenen in: |
Aerosol science and technology |
| Paginering: | Jaargang 12 (1990) nr. 4 pagina's 911-925 |
| Jaar: |
1990 |
| Inhoud: |
The fractional penetration of submicrometer particles through five high-efficiency glass fiber filters, one composite fiber filter, and two membrane filters was measured for particles of 0.004-0.42-μm diameter at filter face velocities ranging from 0.5 to 20 cm/s. The glass fiber filters all had approximately the same thickness and weight per unit area, and were rated 93% to 99.999% efficient using the conventional 0.3-μm dioctyl phthalate (DOP) test. The challenge aerosols were electrically classified monodisperse DOP in the diameter range of 0.032-0.42 μm, and polydisperse silver condensation aerosols having diameters of ∼ 0.004-0.01 μm. Aerosol penetration through these media was found to be generally consistent with current theory for collection by diffusion and interception over the particle size and velocity range studied. Using a filter figure of merit calculated for penetration by 0.1- and 0.3-μm particles to facilitate comparison, all of the filters except one tetrafluoroethylene membrane filter (which was slightly better) had about the same performance. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 15 van 26 gevonden artikelen
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