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Migration Of Liquid Drops On Fibers In Nonwoven Fibrous Filters
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Book Synopsis Migration of Liquid Drops on Fibers in Nonwoven Fibrous Filters by : Saru Dawar
Download or read book Migration of Liquid Drops on Fibers in Nonwoven Fibrous Filters written by Saru Dawar and published by VDM Publishing. This book was released on 2008-05-01 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of liquid drop migration on fibers is significant to many industrial applications (automotive, chemical, textile) and in particular to coalescence filtration of liquid aerosols. Liquid drop migration effects the saturation of liquid in a coalescing filter and determines pressure drop. It is important to design a self cleaning filter, whereby the liquid droplets are collected by the filter and drain out of the filter. An underlying need for all these applications is a reliable method to estimate the rate of liquid motion through the filter. This can be done by defining and determining a drag coefficient for movement of liquid drops on fiber surfaces. This book provides a summary of research results to determine drag coefficient correlations from experiments and models for axial and transverse air flow conditions. The experiments are conducted for different types of fibers and include the effects of an applied acoustic field. Correlations to predict the probability of the motion are also developed considering the effect of acoustic fields. These correlations are a unique approach to determine the velocities of the liquid drops on fibers for different fiber orientations.
Book Synopsis Microscale Study of Drop Migration on Fibers in Coalescing Filters by : Saru Dawar
Download or read book Microscale Study of Drop Migration on Fibers in Coalescing Filters written by Saru Dawar and published by . This book was released on 2007 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The micro scale study of drop motion on fibers is significant to many industrial applications such as drop coalescence and drainage in fibrous filter media. Removal of the liquid droplets from the exhaust streams of many chemical, automotive, aeronautics, textile and health and safety industries is of vital importance. These droplets can lead to clogging of the fibrous filters during the cleaning operation. It is significant to design a self cleaning filter, whereby the liquid droplets collect on the filter and drain down onto some collecting device. This reduces the operational and cleaning cost of the filter. The underlying need for all these applications is estimation of the velocity of a drop along the fiber axis. This can be done by defining and determining the drag coefficient correlation. In this work, the drag coefficient is correlated to Reynolds and capillary numbers from experiments and models with the axial and transverse air flow conditions. The experiments are conducted for different types of fibers and using acoustic fields. Correlations to predict the probability of the motion of the drops on fibers are also developed considering the effect of acoustic fields. These correlations are unique approach to determine the velocities of the liquid drops on fibers for different fiber orientations. Very little has been published on the development of such correlations to predict drop migration on fibers which makes this work unique."--Abstract.
Book Synopsis Aerosol Droplet Migration in Fibrous Media by : Masoume Davoudi
Download or read book Aerosol Droplet Migration in Fibrous Media written by Masoume Davoudi and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The motions of droplets on fibers are important to many industrial applications. In particular, the movements of drops control the performance of fibrous filters. Fibrous filters are widely used in the petrochemical industries to separate aerosol droplets from air to protect the environment and worker health. The performance of a filter medium depends on factors like fiber size, droplet, face velocity, liquid properties and gas conditions. In the operation of a fibrous filter, the droplets carried by a flowing gas are captured by the filter medium due to collisions with the fibers of the medium. Liquid droplets can deform when forces are applied and, when captured on fibers, the droplets can spread over the fiber surface, coalesce into larger drops, and can migrate within the filter as drops or as a flowing film. The movements of the drops on the fibers after they are captured require study to develop theory, correlations, and data to validate models. The overall goal of this dissertation work is to develop new generalized theory for design and manufacture of gas-liquid separation media by developing correlations for gas flow conditions and movements of liquid drops in fibrous media. These relationships will enable the design and development of the next generation of fibrous filtration/separation media with superior performance.There are four experimental tasks to achieve this goal. Experiments on droplet interactions with single fibers, crossing fibers, thin and thick mats. These experiments were conducted to study the shape and migration of drops on fibers and provide fundamental understanding and insight as to how drops attach to, move on and detach from fibers. Different liquids with different drop sizes were tested that give a range of contact angles on the fibers. Different fiber materials with different fiber diameters were evaluated that give a range of surface properties. The liquids, fibers materials and sizes, and droplet sizes were selected as those currently of interest to the filter testing community.
Book Synopsis Study of Liquid Drop Migration on Fibers and Mats Due to Liquid Flow in a Thin Slit Geometry by : Jia Fang
Download or read book Study of Liquid Drop Migration on Fibers and Mats Due to Liquid Flow in a Thin Slit Geometry written by Jia Fang and published by . This book was released on 2015 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The movement of liquid drops on fibers and mats commonly occurs in fabrics used in household and commercial applications. Removal of the liquid droplets from the gas/liquid and liquid/liquid streams will be of benefit for the health of the workers, safety of the environment, and protection of equipment. For example, the presence of water in diesel fuel may lead to some problems such as plugging of fuel injectors, reduce fuel flow rate, reduce fuel lubricity, and cause corrosion of engine parts. It is better to design a self-cleaning filter, which could be used to collect the liquid droplets and drain to a collecting device. This filter has advantages of reducing the cleaning cost and extending the filter life. The quality factor is used to evaluate the performance of the filter, which is related to the separation efficiency and pressure drop. The separation efficiency is strongly related to the velocity of drops on the fibers and mats. The drag coefficient correlation is used to estimate the average velocity of drop moving on the fiber/mat surfaces. In this work, the drag coefficient is correlated to Reynolds and capillary numbers from experiments and models. The flow direction is parallel the fibers and mats. In the gas-liquid experiment, the experiments are conducted for different types of fibers and different liquids. In the liquid-liquid experiment, the experiments are conducted for water drop moving on different types of mat surfaces. Also, other correlations have been derived to estimate the minimum gas/liquid flow Reynolds numbers to initiate the drop movement on fiber and mat surfaces. Finally, when the flow direction is through the filter medium (perpendicular to the fiber mat surface), another correlation is derived to estimate the minimum flow rate to move the water droplets through the pores of the mats. These correlations are unique to determine the average velocities of the liquid drops on fiber/mat surfaces. The motion of drops on fibers and woven mats are not widely discussed in literature. Very few papers have been published on the development of such correlations to estimate the drop migration on fibers/mats which makes this work unique.
Book Synopsis Fibrous Filter Media by : Philip Brown
Download or read book Fibrous Filter Media written by Philip Brown and published by Woodhead Publishing. This book was released on 2017-06-16 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. Part III covers a variety of filtration applications in which fibrous assemblies are used, with examples ranging from filtration for improving air quality, to medical filters, to industrial waste-water filtration. Finally, Part III covers the properties and performance of fibrous filters, including chapters on filter performance and simulation. With its expert editors and international team of contributors, this important book provides information on fibrous filters relevant to fiber and textile scientists, and is also ideal for academics and industry professionals working in the field of filtration. Dr. Philip Brown is Sweetenburg Professor of polymer and textile engineering at Clemson University, USA. Dr. Christopher Cox is Professor of mathematical sciences at Clemson University, USA. - Systematic and comprehensive coverage of the trends and new technologies being developed in the field of fibrous filter media - Focused on the needs of the textiles and filtration industries, with a clear emphasis on applied technology - Contains contributions from an international team of authors edited by an expert in the field
Book Synopsis Advances in Technical Nonwovens by : George Kellie
Download or read book Advances in Technical Nonwovens written by George Kellie and published by Woodhead Publishing. This book was released on 2016-05-17 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Technical Nonwovens presents the latest information on the nonwovens industry, a dynamic and fast-growing industry with recent technological innovations that are leading to the development of novel end-use applications. The book reviews key developments in technical nonwoven manufacturing, specialist materials, and applications, with Part One covering important developments in materials and manufacturing technologies, including chapters devoted to fibers for technical nonwovens, the use of green recycled and biopolymer materials, and the application of nanofibres. The testing of nonwoven properties and the specialist area of composite nonwovens are also reviewed, with Part Two offering a detailed and wide-ranging overview of the many applications of technical nonwovens that includes chapters on automotive textiles, filtration, energy applications, geo- and agrotextiles, construction, furnishing, packaging and medical and hygiene products. - Provides systematic coverage of trends, developments, and new technology in the field of technical nonwovens - Focuses on the needs of the nonwovens industry with a clear emphasis on applied technology - Contains contributions from an international team of authors edited by an expert in the field - Offers a detailed and wide-ranging overview of the many applications of technical nonwovens that includes chapters on automotive textiles, filtration, energy applications, geo- and agrotextiles, and more
Book Synopsis Handbook of Nonwoven Filter Media by : Irwin M. Hutten
Download or read book Handbook of Nonwoven Filter Media written by Irwin M. Hutten and published by Elsevier. This book was released on 2007-03-23 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface; Introduction; Processes for Forming Nonwoven Filter Media; Raw Materials for Nonwoven Filter Media; Types of Filters Using Nonwovens; Applications for Nonwoven Filters; Test Methods for Nonwoven Filter Media; Standards for Nonwoven Media; Glossary; Index; Appendix.
Book Synopsis Composite Nonwoven Materials by : Dipayan Das
Download or read book Composite Nonwoven Materials written by Dipayan Das and published by Elsevier. This book was released on 2014-03-14 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite nonwoven materials are versatile materials with a variety of applications, including hygiene, medicine and filtration. This important book provides a technical resource for professionals and academics in the field. It explores these materials in terms of fiber types used, manufacturing processes, structure, and physical properties. The first part of the book focuses on the use of natural and synthetic fibers in composite nonwovens, discusses their structure in terms of fiber packing and alignment, and their physical properties. Further chapters deal with the practical applications of composite nonwoven materials. Hygiene applications, such as diapers, female sanitary products, incontinence pads, and wipes are covered, as well as composite nonwoven-based medical products and filters. Composite Nonwoven Materials is an ideal reference for R&D managers in the textile industry and academic researchers in textile science. - Systematic and comprehensive information on composite nonwovens - Critical review of progress in research and development on composite nonwovens - Comment on future research direction and ideas for product development
Book Synopsis A Fundamental Study of Filter Loading with Liquid Aerosols by : Gary S. Earnest
Download or read book A Fundamental Study of Filter Loading with Liquid Aerosols written by Gary S. Earnest and published by . This book was released on 2000 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fluid Transport Phenomena in Fibrous Materials by : N. Pan
Download or read book Fluid Transport Phenomena in Fibrous Materials written by N. Pan and published by Woodhead Pub Limited. This book was released on 2006 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Textile Progress monograph series provides a critical and comprehensive examination of the origination and application of developments in the textile industry and its products. This issue reviews recent developments in the understanding of the fundamentals of liquid transport phenomena in fibrous materials, and deals with a wide range of issues, many of which are complex and thus still inadequately understood.
Book Synopsis Behavior of Liquid Drops Within Fiber Bundles by : Tarik Galip Somer
Download or read book Behavior of Liquid Drops Within Fiber Bundles written by Tarik Galip Somer and published by . This book was released on 1952 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Nonwoven Filter Media by : Irwin M. Hutten
Download or read book Handbook of Nonwoven Filter Media written by Irwin M. Hutten and published by Butterworth-Heinemann. This book was released on 2015-10-24 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Nonwoven Filter Media, Second Edition provides readers with a fundamental understanding of nonwoven filter media. It is one of the few books dealing exclusively with the subject, and is primarily intended as a reference for people in the nonwovens industry (industry and academic researchers, technical, marketing , and quality control personnel) and universities offering courses in filtration theory and practice and nonwovens technology.The book includes applications for gas, liquid, and engine filtration, and identifies the types of filter media used in these applications. The various separation technologies that can be achieved with nonwoven filter media are revealed and discussed. Theoretical presentation is based on flow through porous media, and is developed around a nonwovens or engineered fabrics orientation. - Presents the latest information on legislative, regulatory, environmental and sustainability issues affecting the nonwovens and filtration industries - Includes a comprehensive discussion of Computational Flow Dynamics (CFD) by Dr. George Chase, University of Akron, USA - Includes the latest Global and North American marketing statistics for filters and filter media prepared by Brad Kalil of INDA
Book Synopsis Liquid Filtration Simulation Through Nonwoven Fibrous Materials by : Jorge Arturo Destephen Soler
Download or read book Liquid Filtration Simulation Through Nonwoven Fibrous Materials written by Jorge Arturo Destephen Soler and published by . This book was released on 1995 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modelling and Predicting Textile Behaviour by : Xiaogang Chen
Download or read book Modelling and Predicting Textile Behaviour written by Xiaogang Chen and published by Elsevier. This book was released on 2009-11-30 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: The textile industry can experience a vast array of problems. Modelling represents a group of techniques that have been widely used to explore the nature of these problems, it can highlight the mechanisms involved and lead to predictions of the textile behaviour. This book provides an overview of how textile modelling techniques can be used successfully within the textile industry for solving various problems.The first group of chapters reviews the different types of models and methods available for predicting textile structures and behaviour. Chapters include modelling of yarn, woven and nonwoven materials. The second group of chapters presents a selection of case studies, expressing the strengths and limitations and how various models are applied in specific applications. Case studies such as modelling colour properties for textiles and modelling, simulation and control of textile dyeing are discussed.With its distinguished editor and international range of contributors, Modelling and predicting textile behaviour is essential reading material for textile technologists, fibre scientists and textile engineers. It will also be beneficial for academics researching this important area. - Provides an overview of the different types of models and methods that can be used successfully within the textile industry - Reviews the structural hierarchy in textile materials fundamental to the modelling of textile fibrous structures - Assesses the strengths and weaknesses of different textile models and how specific models are applied in different situations
Download or read book Textile Technology Digest written by and published by . This book was released on 1986 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Australian Chemical Engineering by :
Download or read book Australian Chemical Engineering written by and published by . This book was released on 1972 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wetting and Wicking in Fibrous Materials by : A. Patnaik
Download or read book Wetting and Wicking in Fibrous Materials written by A. Patnaik and published by Woodhead Pub Limited. This book was released on 2006-01 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Textile Progress monograph series provides a critical and comprehensive examination of the origination and application of developments in the textile industry and its products. This issue reviews the developments in wicking and wetting of fibrous materials, including fibres, filaments, yarns and fabrics.
