Download Aerosol Measurement: Principles, Techniques, and by Pramod Kulkarni, Paul A. Baron, Klaus Willeke PDF

By Pramod Kulkarni, Paul A. Baron, Klaus Willeke

Aerosol dimension: rules, options, and purposes 3rd version is the main particular remedy to be had of the newest aerosol size equipment. Drawing at the knowledge of diverse specialist members; it presents a superior clutch of size basics and practices a wide selection of aerosol applications.

This new version is up to date to deal with new and constructing purposes of aerosol size, together with purposes in environmental healthiness, atmospheric technological know-how, weather swap, pollution, public future health, nanotechnology, particle and powder know-how, pharmaceutical study and improvement, fresh room expertise (integrated circuit manufacture), and nuclear waste management.

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2-46) where the electrical mobility, Z, has units of velocity/electric field or m2/V . s [cm2/statV . s], that is, unit electrical mobility is a drift velocity of 1 m/s in a 1 V/m field. One statvolt (cgs unit) is equal to 300 volts (V). EXAMPLE 2-7 Aerosol emissions from a foundry are sampled into an electrostatic precipitator for collection onto an electron microscope grid. 01 m. 02 m/s. 33 Â 1029 m2/V . s. What is the minimum plate length, L, that will precipitate all of these particles? Answer: For a potential of 5000 V, the precipitation time, te, in the electric field is Fgrav ¼ te ¼ H H ¼ ¼ Velec ZE ¼ 6:41 Â 10À16 N [6:41 Â 10À11 dyne] Comparing the two forces Felec 7:2 Â 10À13 N ¼ ¼ 1120 Fgrav 6:41 Â 10À16 N The electric force exceeds the gravity force by over a thousand times.

The particle Reynolds number is less than one, indicating the flow around the particle can be laminar. However, it is not in this case because the gas flow is turbulent. 5 Boundary Layer A boundary layer in a flow is defined as a region near a boundary, usually a solid surface, where the influence of fluid viscosity is particularly important. The fluid velocity must fall to zero at the boundary itself. When flow starts along a surface, either in time or space, the boundary layer consists only of the gas at the surface, where the relative velocity is zero.

Air Pollution Control Engineering: Basic Calculations for Particulate Collection. New York: Marcel Dekker. Mazumder, M. , R. E. Ware, J. D. Wilson, R. G. Renninger, F. C. Hiller, P. C. McLeod, R. W. Raible, and M. K. Testerman. 1979. SPART analyzer: Its application to aerodynamic size measurement. J. Aerosol Sci. 10: 561–569. McConalogue, D. , and R. S. Srivastava. 1968. Motion of a fluid in a curved tube. Proc. Roy. Soc. A. 307: 37 –53. 30 FUNDAMENTALS OF SINGLE PARTICLE TRANSPORT Mercer, T. T.

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