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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (88 download)
Download or read book Particle Filtration: An Analysis Using the Method of Volume Averaging written by and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 33 pages
Book Rating : 4.:/5 (727 download)
Download or read book Hierarchical Analysis of Filtration. Progress Report written by and published by . This book was released on 1993 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: The original proposal for this work suggested two lines Of analysis that could be used to develop an hierarchical analysis of filtration. The first of these was semi-empirical and required the use of an angle-dependent rate coefficient to model the effect of particle inertia, while the second made use of a particle velocity decomposition that separated the velocity into an inertial part and a diffusive part. We have concluded that the semiempirical approach cannot lead to an efficient treatment of the filtration problem, and in this study we have dirrcted most of our effort toward the development of the velocity decomposition approach. Problems arise with the velocity decomposition method because the panicle tracking equation is hyperbolic in nature, and there are regions in the flow field where it is difficult to calculate the deterministic particle velocity. These problems can be avoided with an asymptotic analysis, and we have used this approach to determine single fiber efficiencies for small Stokes numbers. These efficiencies illustrate a minimum as a function of the particle diameter; however, the range of validity (in terms of the Stokes number) of the asymptotic method is uncertain. If the range of validity of the asymptotic expansion is suitable for the solution of practical problems, the current work on homogeneous filters should be expanded to included a broader range of values of the key parameters and then extended to include the case of heterogeneous filters. If the range of validity of the asymptotic method is not suitable for the solution of practical problems, the particle tracking problem must be resolved or we must move on to the use of Brownian dynamics. This approach is outlined, where we have indicated how Brownian dynamics may be incorporated into the method of volume averaging.
Author : S. Whitaker
Publisher : Springer Science & Business Media
ISBN 13 : 9401733899
Total Pages : 236 pages
Book Rating : 4.4/5 (17 download)
Download or read book The Method of Volume Averaging written by S. Whitaker and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase systems dominate nearly every area of science and technology, and the method of volume averaging provides a rigorous foundation for the analysis of these systems. The development is based on classical continuum physics, and it provides both the spatially smoothed equations and a method of predicting the effective transport coefficients that appear in those equations. The text is based on a ten-week graduate course that has been taught for more than 20 years at the University of California at Davis and at other universities around the world. Problems dealing with both the theoretical foundations and the applications are included with each chapter, and detailed solutions for all problems are available from the author. The course has attracted participants from chemical engineering, mechanical engineering, civil engineering, hydrologic science, mathematics, chemistry and physics.
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ISBN 13 :
Total Pages : 500 pages
Book Rating : 4.X/5 (4 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 35 pages
Book Rating : 4.:/5 (683 download)
Download or read book Particle Filtration written by and published by . This book was released on 1994 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: The process of filtration of non-charged, submicron particles represents an example of transport in homogeneous and heterogeneous porous media that can be analyzed using the method of volume averaging. In this article the authors develop the local volume averaged particle transport equation for a homogeneous filter and compare the results with experimental data. The particle continuity equation is represented in terms of the first correction to the Smoluchowski equation that takes into account particle inertia effects for small Stokes numbers. This leads to a cellular efficiency that contains a minimum in the efficiency as a function of the particle size, and this allows them to identify the most penetrating particle size. Comparison of the theory with experimental results indicates that the first correction to the Smoluchowski equation gives reasonable results for the most penetrating particle size and for smaller particles; however, results for larger particles clearly indicate the need to extend the Smoluchowski equation to include higher order corrections. The influence of local heterogeneities on the measured filter efficiency may account for some of the observed differences between theory and experiment.
Author : Kvetoslav R. Spurny
Publisher : CRC Press
ISBN 13 : 9780873718301
Total Pages : 564 pages
Book Rating : 4.7/5 (183 download)
Download or read book Advances in Aerosol Gas Filtration written by Kvetoslav R. Spurny and published by CRC Press. This book was released on 1998-03-27 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerosols are generally associated with damaging effects to the ozone and human health, however, some aerosols enable productions of very clean, highly dispersed materials. Advances in Aerosol Filtration is dedicated to progress in aerosol science, presenting newly developed theories, filtration models, and novel applications of aerosol gas filtration. 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.
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ISBN 13 :
Total Pages : 884 pages
Book Rating : 4.3/5 (243 download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hanns-Christian Mahler
Publisher : John Wiley & Sons
ISBN 13 : 0470497181
Total Pages : 480 pages
Book Rating : 4.4/5 (74 download)
Download or read book Analysis of Aggregates and Particles in Protein Pharmaceuticals written by Hanns-Christian Mahler and published by John Wiley & Sons. This book was released on 2012-01-24 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how to address the analysis of aggregates and particles in protein pharmaceuticals, provides a comprehensive overview of current methods and integrated approaches used to quantify and characterize aggregates and particles, and discusses regulatory requirements. Analytical methods covered in the book include separation, light scattering, microscopy, and spectroscopy.
Author : Miroslaw Jonasz
Publisher : Elsevier
ISBN 13 : 0080548679
Total Pages : 715 pages
Book Rating : 4.0/5 (85 download)
Download or read book Light Scattering by Particles in Water written by Miroslaw Jonasz and published by Elsevier. This book was released on 2011-08-29 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light scattering-based methods are used to characterize small particles suspended in water in a wide range of disciplines ranging from oceanography, through medicine, to industry. The scope and accuracy of these methods steadily increases with the progress in light scattering research. This book focuses on the theoretical and experimental foundations of the study and modeling of light scattering by particles in water and critically evaluates the key constraints of light scattering models. It begins with a brief review of the relevant theoretical fundamentals of the interaction of light with condensed matter, followed by an extended discussion of the basic optical properties of pure water and seawater and the physical principles that explain them. The book continues with a discussion of key optical features of the pure water/seawater and the most common components of natural waters. In order to clarify and put in focus some of the basic physical principles and most important features of the experimental data on light scattering by particles in water, the authors employ simple models. The book concludes with extensive critical reviews of the experimental constraints of light scattering models: results of measurements of light scattering and of the key properties of the particles: size distribution, refractive index (composition), structure, and shape. These reviews guide the reader through literature scattered among more than 210 scientific journals and periodicals which represent a wide range of disciplines. A special emphasis is put on the methods of measuring both light scattering and the relevant properties of the particles, because principles of these methods may affect interpretation and applicability of the results. The book includes extensive guides to literature on light scattering data and instrumentation design, as well as on the data for size distributions, refractive indices, and shapes typical of particles in natural waters. It also features a comprehensive index, numerous cross-references, and a reference list with over 1370 entries. An errata sheet for this work can be found at: http://www.tpdsci.com/Ref/Jonasz_M_2007_LightScatE.php *Extensive reference section provides handy compilations of knowledge on the designs of light scattering meters, sources of experimental data, and more *Worked exercises and examples throughout
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ISBN 13 :
Total Pages : 444 pages
Book Rating : 4.0/5 ( download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher : Academic Press
ISBN 13 : 0128150955
Total Pages : 258 pages
Book Rating : 4.1/5 (281 download)
Download or read book Bridging Scales in Modelling and Simulation of Non-Reacting and Reacting Flows. Part II written by and published by Academic Press. This book was released on 2018-04-24 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridging Scales in Modelling and Simulation of Reacting Flows, Part B, Volume 53, presents key methods used to bridge scales in the simulation of reacting multiphase flows. It looks at the different aspects of such flows (transport phenomena, reactions) and includes illustrations of the methods on a variety of applications, along with the contribution of key groups in the field. Sections in this new release include multi-scale methods for fluidized bed reactors, a discussion of advances in coarse-grained discrete particle methods with industrial applications, and spatial filtering for scale bridging and its application to transport in dense bidisperse particle beds, and more. Contains reviews by leading authorities in their respective areas Presents up-to-date reviews of the latest techniques in the modeling of catalytic processes Includes a broad mix of US and European authors, as well as academic, industrial and research institute perspectives Provides discussions on the connections between computation and experimental methods
Author : J. Brock McEwen
Publisher : American Water Works Association
ISBN 13 : 0898678870
Total Pages : 392 pages
Book Rating : 4.8/5 (986 download)
Download or read book Treatment Process Selection for Particle Removal written by J. Brock McEwen and published by American Water Works Association. This book was released on 1998 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. J. Plumpton
Publisher : Elsevier
ISBN 13 : 1483286908
Total Pages : 929 pages
Book Rating : 4.4/5 (832 download)
Download or read book Production and Processing of Fine Particles written by A. J. Plumpton and published by Elsevier. This book was released on 2017-05-04 with total page 929 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of an international symposium organised by the Metallurgical Society of the Canadian Institute of Mining and Metallurgy. The aims of the symposium were to discuss fundamental and practical aspects of the technology for the production of fine inorganic particles for the metals, industrial minerals and advanced ceramics sectors, to highlight particle characterization methods and developments, and to review major advances in the processing and extractive metallurgy of finely-sized minerals. 96 conference papers by authors from 19 countries addressed such topics as particle morphology and size analysis, physical and chemical methods for producing fine particles, processing of minerals using gravity, magnetic and electrostatic separation, flotation and flocculation, phase separation involving fine particles, and the hydrometallurgy and pyroprocessing of fine particles. This book will be of interest to mineral processing scientists and engineers, ceramicists, extractive metallurgists and chemical engineers, who are faced with the increasing significance of inorganic fine particles either as valuable products or as materials to be treated in mineral processing systems.
Author : Kambiz Vafai
Publisher : CRC Press
ISBN 13 : 1439885575
Total Pages : 946 pages
Book Rating : 4.4/5 (398 download)
Download or read book Handbook of Porous Media written by Kambiz Vafai and published by CRC Press. This book was released on 2015-06-23 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Porous Media, Third Edition offers a comprehensive overview of the latest theories on flow, transport, and heat-exchange processes in porous media. It also details sophisticated porous media models which can be used to improve the accuracy of modeling in a variety of practical applications. Featuring contributions from leading experts i
Author : Sadik Kakaç
Publisher : Springer Science & Business Media
ISBN 13 : 9401132208
Total Pages : 1083 pages
Book Rating : 4.4/5 (11 download)
Download or read book Convective Heat and Mass Transfer in Porous Media written by Sadik Kakaç and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1083 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid growth of literature on convective heat and mass transfer through porous media has brought both engineering and fundamental knowledge to a new state of completeness and depth. Additionally, several new questions of fundamental merit have arisen in several areas which bear direct relation to further advancement of basic knowledge and applications in this field. For example, the growth of fundamental heat transfer data and correlations for engineering use for saturated media has now reached the point where the relations for heat transfer coefficients and flow parameters are known well enough for design purposes. Multiple flow field regimes in natural convection have been identified in several important enclosure geometries. New questions have arisen on the nature of equations being used in theoretical studies, i. e. , the Validity of Darcy assumption is being brought into question; Wall effects in high and low velocity flow fields have been found to play a role in predicting transport coefficients; The formulation of transport problems in fractured media are being investigated as both an extension of those in a homogeneous medium and for application in engineering systems in geologic media and problems on saturated media are being addressed to determine their proper formulation and solution. The long standing problem of how to adequately formulate and solve problems of multi-phase heat and mass transfer in heterogeneous media is important in the technologies of chemical reactor engineering and enhanced oil recovery.
Author : David Scott
Publisher : Royal Society of Chemistry
ISBN 13 : 1847552617
Total Pages : 613 pages
Book Rating : 4.8/5 (475 download)
Download or read book Analytical Ultracentrifugation written by David Scott and published by Royal Society of Chemistry. This book was released on 2007-12-16 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical ultracentrifugation has become an increasingly important technique for monitoring the size and shape of biological macromolecules. Analytical Ultracentrifugation: Techniques and Methods contains contributions from experts in the field, bringing together the multitude of developments that have taken place in instrumentation and analysis over the past decade into a single volume. This book covers the latest methods in analysis along with an extensive introduction for the novice user. Analysis methods in both sedimentation velocity and sedimentation equilibrium are discussed at length. Protein, protein/DNA, membrane proteins and polymer systems are also explored, along with software developments and non-ideality.
Author : Ian Colbeck
Publisher : Springer
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.3/5 (91 download)
Download or read book Physical and Chemical Properties of Aerosols written by Ian Colbeck and published by Springer. This book was released on 1998 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: An aerosol is a suspension of fine particles in a gas, usually air, and is generally taken to include both solid and liquid particles with dimensions ranging from a few nanometres up to around 100 micrometres in diameter. Aerosol sicence is the study of the physics and chemistry of aerosol behaviour and this includes techniques of generating particles of nanometre and micrometre dimensions: size classification and measurement, transport and deposition properties: chemical properties of aerosols in the atmosphere and in industry, as well as health effects from inhalation and industrial gas cleaning technology. Aerosols have important commercial implications, e.g. pressure-packaged `aerosol' products, agricultural sprays, atmospheric visibility and high technology materials and knowledge of aerosol properties is important in a wide range of disciplines, including industrial hygiene, air pollution, medicine, agriculture, meteorology and geochemistry. Written by an international team of contributors, this book forms a timely, concise and accessible overview of aerosol science and technology. Chemists, technologists and engineers new to aerosol science will find this book an essential companion in their studies of the subject. Those more familiar with aerosols will use it as an essential source of reference.
