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Deposition of Aerosol Particles below 10 nm on a Mixed Screen-Type Diffusion Battery

Category: Articles

Volume: 12 | Issue: 4 | Pages: 457-462
DOI: 10.4209/aaqr.2012.01.0009
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V. Gómez 1, F.J. Alguacil2, M. Alonso2

  • 1 Instituto de Nanociencia de Aragón (INA), Edificio I+D, c/Mariano Esquillor s/n, 50018 Zaragoza, Spain
  • 2 National Center for Metallurgical Research (CENIM-CSIC), Avenida Gregorio del Amo, 8. 28040 Madrid, Spain

Abstract

Experimental characterization of a mixed screen-type diffusion battery has been made by using monodisperse neutral particles with diameter below 10 nm. The diffusion battery contained two “composite” grids, each of them consisting of a gold screen sandwiched between two Aluminium screens. The equivalent fiber diameter of the composite grid was obtained by fitting the experimental penetration data for uncharged particles to the Cheng-Yeh model. Once the equivalent or effective fiber diameter is known, the fan filter model of Cheng and Yeh allows accurate prediction of particle penetration through the mixed-screen type diffusion battery.

Keywords

Nanoparticle Diffusion Wire screen Single fiber efficiency Equivalent fiber diameter


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