1974
DOI: 10.1021/es60086a008
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Capture of aerosol particles by spherical collectors. Electrostatic, inertial, interception and viscous effects

Abstract: W A mathematical model is presented to predict the efficiency of capture of aerosol particles by spherical collectors. This model includes consideration for inertial, viscous, gravity, and electrostatic forces, and the interception phenomena. The model shows that the efficiency of collection can be improved by the presence of electrostatic charges on the particles. The model, based on potential flow around the collector, is written in dimensionless form. Model predictions are plotted in terms of the appropriat… Show more

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Cited by 40 publications
(17 citation statements)
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“…A comparison of the model developed by George (1974) with experimental data collected by Matteson (1978) revealed a large discrepancy in certain results. Nielsen and Hill found George's aft-side collection computation deficient; however, they also found their estimates to agree in order of magnipresent at the edge of the velocity wake was indicated.…”
Section: Introductionmentioning
confidence: 85%
See 1 more Smart Citation
“…A comparison of the model developed by George (1974) with experimental data collected by Matteson (1978) revealed a large discrepancy in certain results. Nielsen and Hill found George's aft-side collection computation deficient; however, they also found their estimates to agree in order of magnipresent at the edge of the velocity wake was indicated.…”
Section: Introductionmentioning
confidence: 85%
“…In the early to mid-1970s models were developed by George and Poehlein (1974) and Hill (1976a, 1976b) which predicted the collection efficiencies of micrometer-sized particles on charged, spherical collectors. Both workers considered inertial, viscous, gravity, electrostatic forces, and interception phenomena in their models.…”
Section: Introductionmentioning
confidence: 99%
“…The removal of large particles by a cyclone eliminates errors in the size fractions due to particles which bounce through the impactor system. Spherical collectors have also been evaluated for the capture of aerosol particles 277 and have had limited application.…”
Section: Filtrationmentioning
confidence: 99%
“…Inertial and electrostatic collection of particles by spheres has been extensively discussed in the literature (George and Poehlein, 1974;Nielsen and Hill, 1976;Beizaie and Tien, 1980;Wang et al, 1984). The literature results strongly suggest that the imposition of electrostatic forces on these spheres significantly improves their collection efficiencies.…”
Section: Introductionmentioning
confidence: 99%