Development And Experimental Validation Of A Discrete Particle Simulation For Fluidized Beds With External And Inter Particle Forces

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Multiphase Flow and Fluidization

Author : Dimitri Gidaspow
Publisher : Elsevier
ISBN 13 : 0080512267
Total Pages : 489 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Multiphase Flow and Fluidization by : Dimitri Gidaspow

Download or read book Multiphase Flow and Fluidization written by Dimitri Gidaspow and published by Elsevier. This book was released on 2012-12-02 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Useful as a reference for engineers in industry and as an advanced level text for graduate engineering students, Multiphase Flow and Fluidization takes the reader beyond the theoretical to demonstrate how multiphase flow equations can be used to provide applied, practical, predictive solutions to industrial fluidization problems. Written to help advance progress in the emerging science of multiphase flow, this book begins with the development of the conservation laws and moves on through kinetic theory, clarifying many physical concepts (such as particulate viscosity and solids pressure) and introducing the new dependent variable--the volume fraction of the dispersed phase. Exercises at the end of each chapterare provided for further study and lead into applications not covered in the text itself. - Treats fluidization as a branch of transport phenomena - Demonstrates how to do transient, multidimensional simulation of multiphase processes - The first book to apply kinetic theory to flow of particulates - Is the only book to discuss numerical stability of multiphase equations and whether or not such equations are well-posed - Explains the origin of bubbles and the concept of critical granular flow - Presents clearly written exercises at the end of each chapter to facilitate understanding and further study

Fast Fluidization

Author :
Publisher : Academic Press
ISBN 13 : 0080565670
Total Pages : 453 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Fast Fluidization by :

Download or read book Fast Fluidization written by and published by Academic Press. This book was released on 1994-12-23 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last decade, circulating fluidization or fast fluidization has developed rapidly, superseding standard bubbling fluidization in many applications; for example, fast fluidization provides a better means forcontrolling emissions from the combustion of high-sulfur fuels and excels when used in boilers in steam plant and power stations. China initiated the study of fast fluidization in the early 1970s. Focusing on the substantial research cultivated in that country, with Kwauk at the leading edge, this latest volume in the Advances in Chemical Engineering Series is written in the context of the international state of the art and addresses some of the most vital issues surrounding this fluidization method."

Discrete Element Methods

Author : Benjamin K. Cook
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Discrete Element Methods by : Benjamin K. Cook

Download or read book Discrete Element Methods written by Benjamin K. Cook and published by . This book was released on 2002 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Third International Conference on Discrete Element Methods, held in Santa Fe, New Mexico on September 23-25, 2002. This Geotechnical Special Publication contains 72 technical papers on discrete element methods (DEM), a suite of numerical techniques developed to model granular materials, rock, and other discontinua at the grain scale. Topics include: DEM formulation and implementation approaches, coupled methods, experimental validation, and techniques, including three-dimensional particle representations, efficient contact detection algorithms, particle packing schemes, and code design. Coupled methods include approaches to linking solid continuum and fluid models with DEM to simulate multiscale and multiphase phenomena. Applications include fundamental investigations of granular mechanics; micromechanical studies of powder, soil, and rock behavior; and large-scale modeling of geotechnical, material processing, mining, and petroleum engineering problems.

Modeling and Flowsheet Simulation of Vibrated Fluidized Bed Dryers (Band 18)

Author : Sören Ernst Lehmann
Publisher : Cuvillier Verlag
ISBN 13 : 3736975392
Total Pages : 182 pages
Book Rating : 4.7/5 (369 download)

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Book Synopsis Modeling and Flowsheet Simulation of Vibrated Fluidized Bed Dryers (Band 18) by : Sören Ernst Lehmann

Download or read book Modeling and Flowsheet Simulation of Vibrated Fluidized Bed Dryers (Band 18) written by Sören Ernst Lehmann and published by Cuvillier Verlag. This book was released on 2021-12-07 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluidized bed dryers are the prime choice when it comes to drying of heat sensitive products, commonly processed in the pharmaceutical and food industry. As many products in these industries are ﬁne and cohesive, mechanical vibration of the dryer is used to enable or improve ﬂuidization. Thus, the goal of this thesis is the development of a ﬂuidized bed drying model that accounts for the inﬂuence of mechanical vibration of the dryer, as well as its implementation in an open-source ﬂowsheet simulation framework. Continuously operated ﬂuidized bed dryers under steady-state conditions are the focus of this thesis. The aim during model development and implementation is the broadest possible application range of the model. A custom-built vibrated ﬂuidized bed dryer is designed and constructed for comprehensive investigations of ﬂuidized bed hydrodynamics and drying kinetics. Based on experimental investigations, a semi-empirical model for hydrodynamics of ﬁne and cohesive powders is developed. The new model is combined with established models to allow for the ﬂowsheet simulation of ﬂuidized bed dryers for particles of all Geldart groups. Additionally, the inﬂuence of vibration is accounted for. Comprehensive validation experiments are performed for particles of different Geldart groups, different dryer geometries and a variety of process parameters, including mechanical vibration. Comparison of model predictions with experimental data attributes high accuracy of predicted particle and gas properties. Furthermore, sensitivity analyses are conducted to identify potential weaknesses in underlying model assumptions. Hereby, the validity of underlying assumptions is conﬁrmed and potential optimization parameters for different applications are identiﬁed. The proposed model is unprecedented in terms of range of process parameters, variety of particle properties and dryer geometries, tested and found valid for.

Solving Software Challenges for Exascale

Author : Stefano Markidis
Publisher : Springer
ISBN 13 : 3319159763
Total Pages : 154 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Solving Software Challenges for Exascale by : Stefano Markidis

Download or read book Solving Software Challenges for Exascale written by Stefano Markidis and published by Springer. This book was released on 2015-02-18 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the thoroughly refereed post-conference proceedings of the Second International Conference on Exascale Applications and Software, EASC 2014, held in Stockholm, Sweden, in April 2014. The 6 full papers presented together with 6 short papers were carefully reviewed and selected from 17 submissions. They are organized in two topical sections named: toward exascale scientific applications and development environment for exascale applications.

Ion-Solid Interactions for Materials Modification and Processing: Volume 396

Author : D. B. Poker
Publisher :
ISBN 13 :
Total Pages : 940 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Ion-Solid Interactions for Materials Modification and Processing: Volume 396 by : D. B. Poker

Download or read book Ion-Solid Interactions for Materials Modification and Processing: Volume 396 written by D. B. Poker and published by . This book was released on 1996-05-23 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several beam-solid interaction techniques have been developed that can either stand alone or be used in connection with others for materials processing, for fabrication of devices with enhanced electro-optical and mechanical properties, and with enhanced resistance to corrosion and erosion. For example, advances in focused ion beams (FIB) have brought out-of-reach ideas and applications to fruition. This book from MRS focuses on the developments in ion-beam-assisted processing of materials and reviews successful applications of the techniques. Topics include: fundamentals of ion-solid interactions; ion-beam mixing; radiation damage; insulators and wide bandgap materials; polymers; optical materials; plasma and ion-assisted techniques; metals and tribology; focused ion beams; fundamental semiconductor processing and compound semiconductors.

Granular Dynamics, Contact Mechanics and Particle System Simulations

Author : Colin Thornton
Publisher : Springer
ISBN 13 : 3319187112
Total Pages : 202 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Granular Dynamics, Contact Mechanics and Particle System Simulations by : Colin Thornton

Download or read book Granular Dynamics, Contact Mechanics and Particle System Simulations written by Colin Thornton and published by Springer. This book was released on 2015-09-03 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the Discrete Element Method (DEM) technique, a discontinuum modelling approach that takes into account the fact that granular materials are composed of discrete particles which interact with each other at the microscale level. This numerical simulation technique can be used both for dispersed systems in which the particle-particle interactions are collisional and compact systems of particles with multiple enduring contacts. The book provides an extensive and detailed explanation of the theoretical background of DEM. Contact mechanics theories for elastic, elastic-plastic, adhesive elastic and adhesive elastic-plastic particle-particle interactions are presented. Other contact force models are also discussed, including corrections to some of these models as described in the literature, and important areas of further research are identified. A key issue in DEM simulations is whether or not a code can reliably simulate the simplest of systems, namely the single particle oblique impact with a wall. This is discussed using the output obtained from the contact force models described earlier, which are compared for elastic and inelastic collisions. In addition, further insight is provided for the impact of adhesive particles. The author then moves on to provide the results of selected DEM applications to agglomerate impacts, fluidised beds and quasi-static deformation, demonstrating that the DEM technique can be used (i) to mimic experiments, (ii) explore parameter sweeps, including limiting values, or (iii) identify new, previously unknown, phenomena at the microscale. In the DEM applications the emphasis is on discovering new information that enhances our rational understanding of particle systems, which may be more significant than developing a new continuum model that encompasses all microstructural aspects, which would most likely prove too complicated for practical implementation. The book will be of interest to academic and industrial researchers working in particle technology/process engineering and geomechanics, both experimentalists and theoreticians.

Spouted and Spout-Fluid Beds

Author : Norman Epstein
Publisher : Cambridge University Press
ISBN 13 : 1139492721
Total Pages : 363 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Spouted and Spout-Fluid Beds by : Norman Epstein

Download or read book Spouted and Spout-Fluid Beds written by Norman Epstein and published by Cambridge University Press. This book was released on 2010-12-23 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the pioneering text by Mathur and Epstein over 35 years ago, much of the work on this subject has been extended or superseded, producing an enormous body of scattered literature. This edited volume unifies the subject, pulling material together and underpinning it with fundamental theory to produce the only complete, up-to-date reference on all major areas of spouted bed research and practice. With contributions from internationally renowned research groups, this book guides the reader through new developments, insights and models. The hydrodynamic and reactor models of spouted and spout-fluid beds are examined, as well as such topics as particle segregation, heat and mass transfer, mixing and scale-up. Later chapters focus on drying, particle-coating and energy-related applications based on spouted and spout-fluid beds. This is a valuable resource for chemical and mechanical engineers in research and industry.

Granular Dynamics

Author : Aibing Yu
Publisher : Springer
ISBN 13 : 9789812871398
Total Pages : 500 pages
Book Rating : 4.8/5 (713 download)

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Book Synopsis Granular Dynamics by : Aibing Yu

Download or read book Granular Dynamics written by Aibing Yu and published by Springer. This book was released on 2018-03-15 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this handbook is to provide a comprehensive summary of the field of Particle Science and Technology which includes most updated research findings and their applications in different industries. It is hoped that the consolidated knowledge described by this handbook will inspire more innovative ideas to bring the field forward. The size of the particles may range from nanometer scale, as in pigments or aerosols, to that of mined or quarried materials. The handbook will cover the topics ranging from the formation and synthesis, packing and flow, and application of these particles. Each part is explored in great details in different sections and chapters, it is written by a pool of international well known scholars, as well as industrial experts. The handbook fully reflects the state of the art in Particle Science and Technology

Process Modelling and Simulation

Author : César de Prada
Publisher : MDPI
ISBN 13 : 3039214551
Total Pages : 298 pages
Book Rating : 4.0/5 (392 download)

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Book Synopsis Process Modelling and Simulation by : César de Prada

Download or read book Process Modelling and Simulation written by César de Prada and published by MDPI. This book was released on 2019-09-23 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since process models are nowadays ubiquitous in many applications, the challenges and alternatives related to their development, validation, and efficient use have become more apparent. In addition, the massive amounts of both offline and online data available today open the door for new applications and solutions. However, transforming data into useful models and information in the context of the process industry or of bio-systems requires specific approaches and considerations such as new modelling methodologies incorporating the complex, stochastic, hybrid and distributed nature of many processes in particular. The same can be said about the tools and software environments used to describe, code, and solve such models for their further exploitation. Going well beyond mere simulation tools, these advanced tools offer a software suite built around the models, facilitating tasks such as experiment design, parameter estimation, model initialization, validation, analysis, size reduction, discretization, optimization, distributed computation, co-simulation, etc. This Special Issue collects novel developments in these topics in order to address the challenges brought by the use of models in their different facets, and to reflect state of the art developments in methods, tools and industrial applications.

Heat and Mass Transfer in Packed Beds

Author : Noriaki Wakao
Publisher : Taylor & Francis
ISBN 13 : 9780677058603
Total Pages : 396 pages
Book Rating : 4.0/5 (586 download)

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Book Synopsis Heat and Mass Transfer in Packed Beds by : Noriaki Wakao

Download or read book Heat and Mass Transfer in Packed Beds written by Noriaki Wakao and published by Taylor & Francis. This book was released on 1982 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1982. Routledge is an imprint of Taylor & Francis, an informa company.

Particle-fluid Two-phase Flow

Author : Jinghai Li
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Particle-fluid Two-phase Flow by : Jinghai Li

Download or read book Particle-fluid Two-phase Flow written by Jinghai Li and published by . This book was released on 1994 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Particulate Flows

Author : Donald A. Drew
Publisher : Springer Science & Business Media
ISBN 13 : 1468471090
Total Pages : 155 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis Particulate Flows by : Donald A. Drew

Download or read book Particulate Flows written by Donald A. Drew and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: This IMA Volume in Mathematics and its Applications PARTICULATE FLOWS: PROCESSING AND RHEOLOGY is based on the proceedings of a very successful one-week workshop with the same title, which was an integral part of the 1995-1996 IMA program on "Mathematical Methods in Materials Science." We would like to thank Donald A. Drew, Daniel D. Joseph, and Stephen L. Passman for their excellent work as organizers of the meeting. We also take this opportunity to thank the National Science Foun dation (NSF), the Army Research Office (ARO) and the Office of Naval Research (ONR), whose financial support made the workshop possible. A vner Friedman Robert Gulliver v PREFACE The workshop on Particulate Flows: Processing and Rheology was held January 8-12, 1996 at the Institute for Mathematics and its Applications on the University of Minnesota Twin Cities campus as part of the 1995- 96 Program on Mathematical Methods in Materials Science. There were about forty participants, and some lively discussions, in spite of the fact that bad weather on the east coast kept some participants from attending, and caused scheduling changes throughout the workshop. Heterogeneous materials can behave strangely, even in simple flow sit uations. For example, a mixture of solid particles in a liquid can exhibit behavior that seems solid-like or fluid-like, and attempting to measure the "viscosity" of such a mixture leads to contradictions and "unrepeatable" experiments. Even so, such materials are commonly used in manufacturing and processing.

IUTAM Symposium on Segregation in Granular Flows

Author : Anthony Rosato
Publisher : Springer Science & Business Media
ISBN 13 : 9780792365471
Total Pages : 364 pages
Book Rating : 4.3/5 (654 download)

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Book Synopsis IUTAM Symposium on Segregation in Granular Flows by : Anthony Rosato

Download or read book IUTAM Symposium on Segregation in Granular Flows written by Anthony Rosato and published by Springer Science & Business Media. This book was released on 2000-10-31 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Segregation is a pervasive phenomenon whereby a flowing granular mass consisting of particles with diverse physical properties becomes spatially inhomogeneous. In the industrial sector that deals with the handling and processing of bulk solids, this non-uniformity is highly undesirable since blend homogeneity is generally a stringent requirement of most products. In the arena of geophysical flows, segregation can enhance the destructive capabilities of natural events such as avalanches and landslides. During the last 15 years, these issues have provided motivation and fostered collaborations between the communities of mathematicians, engineers, industrial researchers, and physicists to develop predictive models of segregation by integrating the perspectives and approaches of each. The collection of unique papers brings to light many of the perplexing scientific and technical issues in our current understanding of this complex phenomenon. It addresses advances in experiment, computational modeling and theory. This volume is one of the very few books devoted entirely to problems of segregation of particulate solids.

Computational Fluid Dynamics for Engineers

Author : Bengt Andersson
Publisher : Cambridge University Press
ISBN 13 : 1139505564
Total Pages : 203 pages
Book Rating : 4.1/5 (395 download)

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Book Synopsis Computational Fluid Dynamics for Engineers by : Bengt Andersson

Download or read book Computational Fluid Dynamics for Engineers written by Bengt Andersson and published by Cambridge University Press. This book was released on 2011-12-22 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational fluid dynamics, CFD, has become an indispensable tool for many engineers. This book gives an introduction to CFD simulations of turbulence, mixing, reaction, combustion and multiphase flows. The emphasis on understanding the physics of these flows helps the engineer to select appropriate models to obtain reliable simulations. Besides presenting the equations involved, the basics and limitations of the models are explained and discussed. The book combined with tutorials, project and power-point lecture notes (all available for download) forms a complete course. The reader is given hands-on experience of drawing, meshing and simulation. The tutorials cover flow and reactions inside a porous catalyst, combustion in turbulent non-premixed flow, and multiphase simulation of evaporation spray respectively. The project deals with design of an industrial-scale selective catalytic reduction process and allows the reader to explore various design improvements and apply best practice guidelines in the CFD simulations.

Biofilms in Wastewater Treatment

Author : Stefan Wuertz
Publisher : IWA Publishing
ISBN 13 : 1843390078
Total Pages : 425 pages
Book Rating : 4.8/5 (433 download)

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Book Synopsis Biofilms in Wastewater Treatment by : Stefan Wuertz

Download or read book Biofilms in Wastewater Treatment written by Stefan Wuertz and published by IWA Publishing. This book was released on 2003-04-30 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: The central theme of the book is the flow of information from experimental approaches in biofilm research to simulation and modeling of complex wastewater systems. Probably the greatest challenge in wastewater research lies in using the methods and the results obtained in one scientific discipline to design intelligent experiments in other disciplines, and eventually to improve the knowledge base the practitioner needs to run wastewater treatment plants. The purpose of Biofilms in Wastewater Treatment is to provide engineers with the knowledge needed to apply the new insights gained by researchers. The authors provide an authoritative insight into the function of biofilms on a technical and on a lab-scale, cover some of the exciting new basic microbiological and wastewater engineering research involving molecular biology techniques and microscopy, and discuss recent attempts to predict the development of biofilms. This book is divided into 3 sections: Modeling and Simulation; Architecture, Population Structure and Function; and From Fundamentals to Practical Application, which all start with a scientific question. Individual chapters attempt to answer the question and present different angles of looking at problems. In addition there is an extensive glossary to familiarize the non-expert with unfamiliar terminology used by microbiologists and computational scientists. The colour plate section of this book can be downloaded by clicking here. (PDF Format 1 MB)

Continuous Manufacturing of Pharmaceuticals

Author : Peter Kleinebudde
Publisher : John Wiley & Sons
ISBN 13 : 1119001323
Total Pages : 645 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Continuous Manufacturing of Pharmaceuticals by : Peter Kleinebudde

Download or read book Continuous Manufacturing of Pharmaceuticals written by Peter Kleinebudde and published by John Wiley & Sons. This book was released on 2017-09-05 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive look at existing technologies and processes for continuous manufacturing of pharmaceuticals As rising costs outpace new drug development, the pharmaceutical industry has come under intense pressure to improve the efficiency of its manufacturing processes. Continuous process manufacturing provides a proven solution. Among its many benefits are: minimized waste, energy consumption, and raw material use; the accelerated introduction of new drugs; the use of smaller production facilities with lower building and capital costs; the ability to monitor drug quality on a continuous basis; and enhanced process reliability and flexibility. Continuous Manufacturing of Pharmaceuticals prepares professionals to take advantage of that exciting new approach to improving drug manufacturing efficiency. This book covers key aspects of the continuous manufacturing of pharmaceuticals. The first part provides an overview of key chemical engineering principles and the current regulatory environment. The second covers existing technologies for manufacturing both small-molecule-based products and protein/peptide products. The following section is devoted to process analytical tools for continuously operating manufacturing environments. The final two sections treat the integration of several individual parts of processing into fully operating continuous process systems and summarize state-of-art approaches for innovative new manufacturing principles. Brings together the essential know-how for anyone working in drug manufacturing, as well as chemical, food, and pharmaceutical scientists working on continuous processing Covers chemical engineering principles, regulatory aspects, primary and secondary manufacturing, process analytical technology and quality-by-design Contains contributions from researchers in leading pharmaceutical companies, the FDA, and academic institutions Offers an extremely well-informed look at the most promising future approaches to continuous manufacturing of innovative pharmaceutical products Timely, comprehensive, and authoritative, Continuous Manufacturing of Pharmaceuticals is an important professional resource for researchers in industry and academe working in the fields of pharmaceuticals development and manufacturing.