Zobrazeno 1 - 10
of 45
pro vyhledávání: '"R.J. Han"'
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Conference
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Publikováno v:
Journal of Aerosol Science. 27:235-247
The mass and heat transfer to a particle in a flow field have important practical applications in distillation, absorption, spray drying and catalytic reactions. The applications in aerosol science include inhalation dosimetry as well as gas cleaning
Autor:
R.J. Han, James W. Gentry
Publikováno v:
Journal of Aerosol Science. 25:499-508
Computational methods for evolution of unipolar charge distribution on fibers and platelets were developed based on population balance equations. The minimum flux criteria were extended to obtain the ion acquisition rate for these nonspherical aeroso
Autor:
James W. Gentry, R.J. Han
Publikováno v:
Journal of Aerosol Science. 24:211-226
Models for the unipolar charging of fibers were developed. The theoretical models using idealized geometries—either prolate spheroids or cylinders—and considering both the free-molecular and continuum cases served as a basis for numerical simulat
Autor:
R.J. Han, James W. Gentry
Publikováno v:
Aerosol Science and Technology. 18:165-179
In this article the theoretical development of the unipolar field charging and combined diffusional and field charging in the continuum regime for fibrous aerosols is studied. The geometry of fibrous aerosols was modeled by a rodlike cylinder. The ef
Akademický článek
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Publikováno v:
Journal of Aerosol Science. 23:139-152
An algorithm for obtaining the size dependent collection efficiency (or penetration) of ultrathin chrysotile fibers through nuclepore filters as a function of fiber diameter and aspect ratio is presented. Numerical simulations are used to provide est
Autor:
R.J. Han, James W. Gentry
Publikováno v:
Journal of Aerosol Science. 23:401-404
The effect of unequal ion mobilities, particle shape, and the inclusion of the image correction factor on the charge equilibrium for fibers and platelets was examined using numerical simulations. The calculations are based on the principle of “deta
Publikováno v:
Journal of Aerosol Science. 23:603-606
The EPA protocol for the sampling of asbestos fibers was tested in a low speed wind tunnel using monodisperse fluorescein particles as a surrogate. The primary objective of the test were to examine whether the deposition on the filters were homogeneo