Separation of Particles from Fibers for Backwashing a Fibrous Filter PDF Download
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Author: George Ernest Grossmann
Publisher:
ISBN:
Category :
Languages : en
Pages : 218
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Book Description
Author: George Ernest Grossmann
Publisher:
ISBN:
Category :
Languages : en
Pages : 218
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Book Description
Author: Zhili Liu
Publisher:
ISBN:
Category :
Languages : en
Pages : 370
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Book Description
Author: Seyed Alireza Hosseini
Publisher:
ISBN:
Category : Filters and filtration
Languages : en
Pages :
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Book Description
This study is aimed at developing modeling methodologies for simulating the flow of air and aerosol particles through fibrous filter media made up of micro- or nano-fibers. The study also deals with modeling particle deposition (due to Brownian diffusion, interception, and inertial impaction) and particle cake formation, on or inside fibrous filters. By computing the air flow field and the trajectory of airborne particles in 3-D virtual geometries that resemble the internal microstructure of fibrous filter media, pressure drop and collection efficiency of micro- or nano-fiber filters are simulated and compared with the available experimental studies. It was demonstrated that the simulations conducted in 3-D disordered fibrous domains, unlike previously reported 2-D cell-model simulations, do not need any empirical correction factors to closely predict experimental observations. This study also reports on the importance of fibers' cross-sectional shape for filters operating in slip (nano-fiber filters) and no-slip (micro-fiber filters) flow regimes. In particular, it was found that the more streamlined the fiber geometry, the lower the fiber drag caused by a nanofiber relative to that generated by its micron-sized counterpart. This work also presents a methodology for simulating pressure drop and collection efficiency of a filter medium during instantaneous particle loading using the Fluent CFD code, enhanced by using a series of in-house subroutines. These subroutines are developed to allow one to track particles of different sizes, and simulate the formation of 2-D and 3-D dendrite particle deposits in the presence of aerodynamic slip on the surface of the fibers. The deposition of particles on a fiber and the previously deposited particles is made possible by developing additional subroutines, which mark the cells located at the deposition sites and modify their properties to so that they resemble solid or porous particles. Our unsteady-state simulations, in qualitative agreement with the experimental observations reported in the literature, predict the rate of increase of pressure drop and collection efficiency of a filter medium as a function of the mass of the loaded particles.
Author: Arjen van Nieuwenhuijzen
Publisher: IWA Publishing
ISBN: 1843392771
Category : Science
Languages : en
Pages : 241
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Book Description
Particles in water play an important role in all kinds of water quality and treatment issues. Since the early beginnings of centralised water production and treatment, the main goal of water purification was primarily the removal of water turbidity in order to produce clear water free from visible particles. The Handbook on Particle Separation Processes provides knowledge and expertise from a selected group of international experts with a wealth of experience in the field of particles and particle separation in water and wastewater treatment. The Handbook on Particle Separation Processes includes an edited selection of presentations and workshops held at the academic summer school Particle Separation in Water and Wastewater Treatment, organised under the supervision of the IWA Specialist Group Particle Separation.
Author: André B. de Haan
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110654806
Category : Science
Languages : en
Pages : 454
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Book Description
Separation processes on an industrial scale account for well over half of the capital and operating costs in the chemical industry. Knowledge of these processes is key for every student of chemical or process engineering. This book is ideally suited to university teaching, thanks to its wealth of exercises and solutions. The second edition boasts an even greater number of applied examples and case studies as well as references for further reading.
Author: John Gregory
Publisher: Elsevier Science & Technology
ISBN:
Category : Nature
Languages : en
Pages : 252
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Book Description
Author: T. Christopher Dickenson
Publisher: Elsevier
ISBN: 9781856173223
Category : Technology & Engineering
Languages : en
Pages : 1084
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Book Description
Following over 3,000 sales of the third edition, the fourth edition of Filters & Filtration Handbook is again destined to become the leading reference manual for filtration and separation products.The handbook is an essential reference tool for engineers, designers technicians, plant operators and consultants as well as staff with responsibility for purchasing, planning, sales and marketing. It is directly relevant to numerous industries including water, fluid power, chemicals, pharmaceutical, food and beverages, processing, general engineering, electronics and manufacturing.
Author: Albert Rushton
Publisher: John Wiley & Sons
ISBN: 3527614966
Category : Science
Languages : en
Pages : 542
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Book Description
A valuable presentation of theoretical and practical information in the area of liquid-solid filtration. The development of theoretical models is highlighted with practical design data and problem-related examples. Modern trends, e.g., membrane systems, are reported together with the fundamental aspects of particulate technology. The increasing interest in pollution control and environmental protection provides an expansive market for this book. Chemical engineers, chemists, physicists, water treatment/sewage engineers, civil engineers and all those concerned with filtration and pollution will find this book of tremendous value and practical use.
Author: Kenneth Lee Rubow
Publisher: Butterworth-Heinemann
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 560
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Book Description
This is the fourth volume in a series of technical papers from the American Filtration Society conferences. This volume looks at fine particle filtration and separation and includes an examination of the fundamentals of gas filtration, filter materials, industrial separation, respiratory protection, filter testing methods, and pharmaceutical, medical and biomedical separation.
Author: R. J. Wakeman
Publisher:
ISBN: 9780444420060
Category : Filters and filtration
Languages : en
Pages : 326
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Book Description
Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
