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Thursday, July 23, 2020 | History

2 edition of fundamental study of aerosol filtration by fibrous filters found in the catalog.

fundamental study of aerosol filtration by fibrous filters

H. C. Yeh

fundamental study of aerosol filtration by fibrous filters

by H. C. Yeh

  • 318 Want to read
  • 16 Currently reading

Published .
Written in English


Edition Notes

Statementby H.C. Yeh.
ID Numbers
Open LibraryOL19844669M

Fundamentals of the Compression Behavior of Dust Filter Cakes, W. Hoeflinger Filter Efficiency Modeling, E. Schmidt, A. Gutsch, and R. Maus On the Filtration and Separation of Fibrous Aerosols, K.R. Spurny Carbon Fiber Filters with Aerosol Separation and Gas Adsorption Properties, K.R. Spurny Pore Filters: Aerosol Filtration and Sampling, K.R. Atmospheric pollution caused by the uncontrolled development of industrial technologies, has now reached the danger point, past which its irreversible effect on natural factors and the resulting danger to living organisms and to future human generations starts outweighing the advantages of technological progress. The increase in the appearance and development of increasingly more .

This work presents a new computational fluid dynamics model, developed to simulate the behaviour of fibrous filters used to treat liquid aerosols. We demonstrate that the solver can resolve the fundamental processes that occur in coalescing filters, such as aerosol droplet capture, coalescence, film break-up, and the motion of coalesced liquid Cited by:   It also constitutes a unique technique for the fundamental study of single filter-fiber behavior. detection with nanomechanical resonant filter-fiber Study of Aerosol Filtration by Fibrous Cited by:

Topics include new filtration materials, filter testing methods, electrically enhanced filtration, mechanical and chemical filter resistivity, computational models, and much more. This book examines the history and development of aerosol filtration science and also considers research needs for the future.   Prof. Agranovski is a research scientist with 24 years experience in aerosol science and nanotechnology and their applications in design and implementation of air pollution control and monitoring technologies. He has published more 3/5(1).


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Fundamental study of aerosol filtration by fibrous filters by H. C. Yeh Download PDF EPUB FB2

A theoretical analysis of filtration mechanisms has been made for fibrous filters in the region of maximum penetration.

The theory is based on a boundary layer approach using the Kuwabara flow field to account for the interference effects of neighboring by: Abstract. Fundamental study of aerosol filtration by fibrous filters book theory of aerosol filtration by fibrous filters is based on the Kuwabara-Happel flow field for the cell model.

Previous studies in this area have involved mostly an examination of three main filtration mechanisms: Brownian diffusion, direct interception and inertial impaction, either separately or by combining direct interception with Brownian diffusion or inertial by: Aerosol Filtration, book for students, hygiene or process engineers, fibrous media manufacturers, designers, and filtration system suppliers or users addresses the filtration of aerosols in six chapters.

These chapters cover physics and aerosol characterization, the fibrous media, and efficiency and filter clogging by solid or liquid aerosols, with special attention to the filtration.

Aerosol filtration by fibrous filters pressure filtration or in a high efficiency filter with small fiber radius. For the slip flow regime, the flow fields of Kuwabara, Lamb and Spielman and Goren have been solved using the slip flow boundary condition. Current theories of aerosol filtration by fibrous filters are based on the Kuwabara-Hap-File Size: KB.

The efficiency of fibrous aerosol filters: Deposition by diffusion of particles of finite diameter. The Canadian Journal of Chemical Engineering38 (6), DOI: /cjce S.C Stern, H.W Zeller, A.I Schekman.

The aerosol efficiency and pressure drop of a fibrous filter at reduced by:   Experimental observation of dendrite structure on a single fibre.

Experimental observations on model and real fibrous filters. Fractal structure of particle deposits. Effect of loading with liquid aerosols. Time-dependent effects in filter clogging. The effect of dust loading on the performance of electrically charged filters. Filter Edition: 1. Fibrous depth filters are frequently used for the purification of gas streams with low dust loadings, as well as processes where a high initial filtration efficiency is required (e.g., clean rooms.

As a result, aerosol particles are captured by conventional filtration as well as by electrostatic mechanisms. This makes plasma textiles a promising filtration material with potential applications as filters, sensors, antimicrobial, and chemical.

This study presents the experimental results of penetration of aerosol particles with diameters between nm and through fibrous filters.

Three particle size spectrometers: the TSI Abstract. Filtration of particles from the gas stream is one of the main classes of particulate air cleaning devices.

The filter medium is the most essential component of every cleaning device based on filtration principle. The effectiveness of a cleaning device is determined by the type of filter media. A wide range of different filter media can be utilized, including fibrous filter media.

Fine mist filtration by wet filters—II: Efficiency of fibrous filters. Journal of Aerosol Science20 (1), DOI: /(89)X. John E. Tobiason. Chemical effects on the deposition of non-Brownian by: A fibrous filter is a common cleaning device often used to remove particles from industrial gas streams.

A fundamental question concerns the evolution of the filter performance under aerosol load and the prediction of its life by:   Filtration of nanosized particle aerosols by electret fibrous filters. Authors; Authors and affiliations The Theory of Aerosol Filtration with Fibrous Filters. Fundamentals of Aerosol Science, Ed.

by D. Shaw (Wiley-Intersci “Filtration of submicron aerosol particles using a carbon fiber ionizerassisted electret filter,” Aerosol Cited by: 2. Aerosol Filtration, book for students, hygiene or process engineers, fibrous media manufacturers, designers, and filtration system suppliers or users addresses the filtration of aerosols in six chapters.

These chapters cover physics and aerosol characterization, the fibrous media, and efficiency and filter clogging by solid or liquid aerosols.

Aerosol collection efficiency was studied for electrostatically charged fibrous filters (3M Filtrete™, BMFF). In this study, collection efficiencies at moderate filter face velocities (– m/s) representative of some high volume sampling applications was characterized.

Experimental data and analytical theories of filter performance are less common in this flow Cited by: The relation between the filter efficiency and the pressure drop as a function of mass of loaded particles was also studied by Thomas () during the clogging of fibrous filters with solid.

This self-contained handbook and ready reference examines aerosol science and technology in depth, providing a detailed insight into this progressive field. As such, it covers fundamental concepts, experimental methods, and a wide variety of applications, ranging from aerosol filtration to biological aerosols, and from the synthesis of carbon.

Lee, K. W.; Liu, B. H.: Theoretical Study of Aerosol Filtration by Fibrous Filters. Aerosol Sci. and Technol. 1 ( The Effect of Cyclonic Precleaners on the Pressure Drop of Fabric Filters. Filtration & Separation 16 (), / Löffler F.

() Fundamental Principles of Particle Separation in Fabric Filters. In: Löffler F Cited by: 1. All tested fibrous filters showed % filtration efficiency for the sub-3 nm particles and were still sufficiently powerful to eliminate nanoparticles in the air down to nm.

A method is proposed for calculating an increase in the pressure drop across the volume of a fibrous aerosol filter upon its clogging with solid particles with respect to the formation of. Fibrous Filter Media comprehensively covers the types, manufacture, applications, performance, and modeling of fibrous filter media.

Part I introduces the principles of gas and liquid filtration, while Part II presents an overview of the types of fibrous filters, including details of fiber types, fabric construction, and applications.Aerosol Filtration And Separation Tachih Hsiao and series of filter loading experiments are performed to study the behavior of filters loaded with liquid-coated particles, which exhibit transition behavior between those of.

Figure Typical loading behavior for fibrous filter loaded with liquid particle 15Cited by: 1.An Investigation of Aerosol Filtration via Fibrous Filters. (Under the direction of Hooman Vahedi Tafreshi and Behnam Pourdeyhimi.) The most common method of removing particles from a gas stream is via fibrous filters.

However, most of the previous studies have been limited to systems consisting of rows of.