Author: B. PearsonPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Mathematical Model of Aerosol Filtration by Fibrous Filters
Author: B. PearsonA Fundamental Study of Aerosol Filtration by Fibrous Filters
Author: Hsu-Chi YehPublisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 538
Book Description
Advances in Aerosol Gas Filtration
Author: Kvetoslav R. SpurnyPublisher: CRC Press
ISBN: 9780873718301
Category : Nature
Languages : en
Pages : 564
Book Description
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.
Aerosol Filtration
Author: Dominique ThomasPublisher: Elsevier
ISBN: 008102116X
Category : Science
Languages : en
Pages : 228
Book Description
Filtration of aerosols is omnipresent in our daily lives, in areas as diverse as health, the protection of people and the environment, and air treatment inside buildings. However, the collection of particles within a filter media is not, contrary to popular belief, linked to a simple screen effect. The phenomena involved are much more complex and require the consideration of aerosol interactions, filter media and process conditions to select the best fiber filter for a given application. 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 of the nanoparticles. - Analyses the behavior of fibrous media against solid and liquid aerosols - Presents models of efficiency and pressure drop - Introduces computing elements for estimating the lifetime of filters - Provides guidance for designing filters and predicting their behavior over time
An Investigation of Aerosol Filtration Via Fibrous Filters
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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 fibers (often in two-dimensional geometries) perpendicular to the flow direction. The current work is aiming to develop an understanding of the role of filter?s microstructure and manufacturing process. In the first part of this study, pressure drop and nanoparticle collection efficiency of lightweight spun-bonded media are simulated by solving the Navier-Stokes equations inside three-dimensional geometries resembling the microstructure of such media. These pressure drop and collection efficiencies showed a perfect agreement with experimental data. In the second part of this work, the influences of fiber length and compaction ratio of filter media on the pressure drop are discussed. Simulation data of staple fiber media have shown good agreement with Davies? empirical equation. Such an agreement indicates that, within the range of dimensions considered, the fiber length has no significant influence on the materials? through-plane permeability as long as the SVF remains constant. Our simulation results for nonwovens with different compaction ratios, together with our experimental data, indicate that pressure drop of the porous media increases with increasing the compaction ratio or temperature of the calender rolls. In the third part of this work, we presented our approach for modeling permeability of fibrous filters with bimodal fiber size distributions (referred to as bimodal filters in this context). The three-dimensional microstructures resembling bimodal filter media with random in-plane fiber orientation distribution were generated to compute their permeability constants. These results were compared with the previous analytical and numerical models as well as our experimental data. Here we concluded that there exists an area-weighted equivalent average diameter for each bimodal filter tha.
Aerosol Filtration by Fibrous Filter Mats
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 30
Book Description
The purpose of the study was to determine the penetration characteristics of a 0.3-micron-diameter liquid dioctylphthalate (DOP) aerosol through four types of US Army mask filter mats as a function of variables, such as flow velocity, filter thickness, and pressure drop, and to develop in accord with present theory those mathematical relations which quantitatively express the experimental data.
Fibrous Filter Media
Author: Philip BrownPublisher: Woodhead Publishing
ISBN: 0081005822
Category : Technology & Engineering
Languages : en
Pages : 318
Book Description
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
A Fundamental Study of Aerosol Filtration by Fibrous Filters in the Transition Flow Regime
Author: Zhiqun ZhangFiltration of Submicron Aerosols by Fibrous Filters
Author: Kyoo Won LeePublisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 512
Book Description
Author: Hicham Elmrini