Hydrodynamics Stability And Scale Up Of Slot Rectangular Spouted Beds

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Hydrodynamics, Stability and Scale-up of Slot-rectangular Spouted Beds

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (68 download)

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Book Synopsis Hydrodynamics, Stability and Scale-up of Slot-rectangular Spouted Beds by :

Download or read book Hydrodynamics, Stability and Scale-up of Slot-rectangular Spouted Beds written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Slot-rectangular spouted beds, with rectangular cross-section and slotted gas inlets, have been proposed as a solution to overcoming scale-up difficulties with conventional axisymmetric spouted beds. They can be utilized in gas/particle processes such as drying of coarse particles and coating of tablets. However, application of this spouted bed was limited because of instability and insufficient hydrodynamic studies. The present work is therefore aimed at the study of hydrodynamics, stability and scale-up of slot-rectangular spouted beds. The hydrodynamic study was carried out in four slot-rectangular columns of various width-to-thickness ratios combined with various slot configurations, particles of different properties and a range of operating conditions. Hydrodynamics of slot-rectangular spouted beds showed major similarity with conventional spouted beds. However, equations and mechanistic models adopted from conventional axisymmetric spouted beds generally failed to provide good predictions for the three-dimensional slot-rectangular geometry. New empirical correlations were derived for the minimum spouting velocity and maximum pressure drop for different slot configurations. Slot-rectangular spouted beds also showed more flow regimes than conventional spouted beds. Nine flow regimes, as well as unstable conditions, were identified based on frequency and statistical analysis of pressure fluctuations. Slot geometrical configuration was found to be the main factor affecting the stability of slot-rectangular spouted beds. A comprehensive hydrodynamic study on the effect of slot configuration was therefore carried out. Slots of smaller length-to-width ratio, smaller length and greater depth were found to provide greater stability. Stable criteria for the slot configuration were found consistent with the conventional axisymmetric spouted beds with extra limitation on slot length-to-width ratio and slot depth. Local distributions of pressure, particle velocity and void.

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.

Computational Methods in Multiphase Flow VII

Author : C. A. Brebbia
Publisher : WIT Press
ISBN 13 : 1845647343
Total Pages : 557 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Computational Methods in Multiphase Flow VII by : C. A. Brebbia

Download or read book Computational Methods in Multiphase Flow VII written by C. A. Brebbia and published by WIT Press. This book was released on 2013-07-03 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase flows are found in all areas of technology, at all length scales and flow regimes and can involve compressible or incompressible linear or nonlinear, fluids. However, although they are ubiquitous, multiphase flows continue to be one of the most challenging areas of computational mechanics, with numerous problems as yet unsolved. Advanced computational and experimental methods are often required to solve the equations that describe such complex problems. The many challenges that must be faced in solving them include modelling nonlinear fluids, modelling and tracking interfaces, dealing with multiple length scales, characterising phase structures, and treating drop break-up and coalescence. It is important to validate models, which calls for the use of expensive and difficult experimental techniques.This book presents contributions on the latest research in the techniques for solving multiphase flow problems, presented at the seventh in a biennial series of conferences on the subject that began in 2001. Featured topics include: Flow in porous media; Turbulent flow; Multiphase flow simulation; Image processing; Heat transfer; Atomization; Interface behaviour; Oil and gas applications; Experimental measurements; Energy applications; Biological flows; Micro and macro fluids; Compressible flows.

Computational Methods in Multiphase Flow VI

Author : Andrea Alberto Mammoli
Publisher : WIT Press
ISBN 13 : 1845645189
Total Pages : 345 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Computational Methods in Multiphase Flow VI by : Andrea Alberto Mammoli

Download or read book Computational Methods in Multiphase Flow VI written by Andrea Alberto Mammoli and published by WIT Press. This book was released on 2011 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase flows, which can involve compressible or incompressible linear or nonlinear, fluids, Are found in all areas of technology, at all length scales and flow regimes. In spite of their ubiquitousness, however multiphase flow continues to be one of the most challenging areas of computational mechanics and experimental methods, with numerous problems remaining unsolved to date. Because the multiphase flow problems are so complex, advanced computational and experimental methods are often required to solve the equations that describe them. The many hhallenges include modelling nonlinear fluids, modelling and tracking interfaces, dealing with multiple length scales, characterizing phase structures, and treating drop breakup and coalescence. Models must be validated, which requires the use of expensive and difficult experimental techniquess. This book presents contributions on the latest research in these techniques, presented at the sixth in a biennial series of conferences on the subject that begain in 2001. Featured topics include: Bubble and drop dynamics, Flow in porous media, Turbulent flow, Multiphase flow simulation, Image processing, Heat transfer, Interaction of gases, liquids and solids, Interface behaviour, Small scale phenomena, Atomization processes, and Liquid film behaviour.

Process and Chemical Engineering

Author :
Publisher :
ISBN 13 :
Total Pages : 676 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Process and Chemical Engineering by :

Download or read book Process and Chemical Engineering written by and published by . This book was released on 2000 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Spouted Beds

Author : Kishan Mather
Publisher : Elsevier
ISBN 13 : 032314120X
Total Pages : 321 pages
Book Rating : 4.3/5 (231 download)

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Book Synopsis Spouted Beds by : Kishan Mather

Download or read book Spouted Beds written by Kishan Mather and published by Elsevier. This book was released on 2012-12-02 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spouted Beds is a comprehensive 13-chapter book that covers the spouting phenomenon and the special features and applications of spouted beds. After briefly discussing the history and features of spouted bed compared to fluidized bed, the book deals with the fluid and solid dynamics of spouted beds. The book then gives a description of the internal geometrical structure of a stable bed, as well as the estimation of maximum spoutable bed depth. The subsequent chapters examine the attrition and heat and mass transfer in spouted beds, both between fluid and particles and within particles. The book further discusses theoretical aspects on using a spouting bed in carrying out gas phase chemical reaction. It also describes the application of spouted bed to a large variety of mechanical, thermal, diffusional, and chemical processes, whether on the bench, pilot, or commercial scale. This is followed by a discussion on the various process and equipment modifications to a standard spouted bed that have been devised to achieve specific ends. The final chapter outlines some practical hints for the benefit of the spouted bed designer and operator. This book is an ideal resource text to spouted bed designers, operators, and manufacturers.

Fluid Bed Technology in Materials Processing

Author : C. K. Gupta
Publisher : CRC Press
ISBN 13 : 9781420049862
Total Pages : 526 pages
Book Rating : 4.0/5 (498 download)

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Book Synopsis Fluid Bed Technology in Materials Processing by : C. K. Gupta

Download or read book Fluid Bed Technology in Materials Processing written by C. K. Gupta and published by CRC Press. This book was released on 1998-12-28 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid Bed Technology in Materials Processing comprehensively covers the various aspects of fluidization engineering and presents an elaborate examination of the applications in a multitude of materials processing techniques. This singular resource discusses: All the basic aspects of fluidization essential to understand and learn about various techniques The range of industrial applications Several examples in extraction and process metallurgy Fluidization in nuclear engineering and nuclear fuel cycle with numerous examples Innovative techniques and several advanced concepts of fluidization engineering, including use and applications in materials processing as well as environmental and bio-engineering Pros and cons of various fluidization equipment and specialty of their applications, including several examples Design aspects and modeling Topics related to distributors effects and flow regimes A separate chapter outlines the importance of fluidization engineering in high temperature processing, including an analysis of the fundamental concepts and applications of high temperature fluidized bed furnaces for several advanced materials processing techniques. Presenting information usually not available in a single source, Fluid Bed Technology in Materials Processing serves Fluidization engineers Practicing engineers in process metallurgy, mineral engineering, and chemical metallurgy Researchers in the field of chemical, metallurgical, nuclear, biological, environmental engineering Energy engineering professionals High temperature scientists and engineers Students and professionals who adopt modeling of fluidization in their venture for design and scale up

Fox and McDonald's Introduction to Fluid Mechanics

Author : Robert W. Fox
Publisher : John Wiley & Sons
ISBN 13 : 1119721024
Total Pages : 608 pages
Book Rating : 4.1/5 (197 download)

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Book Synopsis Fox and McDonald's Introduction to Fluid Mechanics by : Robert W. Fox

Download or read book Fox and McDonald's Introduction to Fluid Mechanics written by Robert W. Fox and published by John Wiley & Sons. This book was released on 2020-06-30 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through ten editions, Fox and McDonald's Introduction to Fluid Mechanics has helped students understand the physical concepts, basic principles, and analysis methods of fluid mechanics. This market-leading textbook provides a balanced, systematic approach to mastering critical concepts with the proven Fox-McDonald solution methodology. In-depth yet accessible chapters present governing equations, clearly state assumptions, and relate mathematical results to corresponding physical behavior. Emphasis is placed on the use of control volumes to support a practical, theoretically-inclusive problem-solving approach to the subject. Each comprehensive chapter includes numerous, easy-to-follow examples that illustrate good solution technique and explain challenging points. A broad range of carefully selected topics describe how to apply the governing equations to various problems, and explain physical concepts to enable students to model real-world fluid flow situations. Topics include flow measurement, dimensional analysis and similitude, flow in pipes, ducts, and open channels, fluid machinery, and more. To enhance student learning, the book incorporates numerous pedagogical features including chapter summaries and learning objectives, end-of-chapter problems, useful equations, and design and open-ended problems that encourage students to apply fluid mechanics principles to the design of devices and systems.

Scale-up in Chemical Engineering

Author : Marko Zlokarnik
Publisher : John Wiley & Sons
ISBN 13 : 3527607765
Total Pages : 296 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Scale-up in Chemical Engineering by : Marko Zlokarnik

Download or read book Scale-up in Chemical Engineering written by Marko Zlokarnik and published by John Wiley & Sons. This book was released on 2006-08-21 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the important task of the scale-up of processes from the laboratory to the production scale, this easily comprehensible and transparent book is divided into two sections. The first part details the theoretical principles, introducing the subject for readers without a profound prior knowledge of mathematics. It discusses the fundamentals of dimensional analysis, the treatment of temperature-dependent and rheological material values and scale-up where model systems or not available or only partly similar. All this is illustrated by 20 real-world examples, while 25 exercises plus solutions new to this edition practice and monitor learning. The second part presents the individual basic operations and covers the fields of mechanical, thermal, and chemical process engineering with respect to dimensional analysis and scale-up. The rules for scale-up are given and discussed for each operation. Other additions to this second edition are dimensional analysis of pelleting processes, and a historical overview of dimensional analysis and modeling, while all the chapters have been updated to take the latest literature into account. Written by a specialist with more than 40 years of experience in the industry, this book is specifically aimed at students as well as practicing engineers, chemists and process engineers already working in the field.

Design and Processing of Particulate Products

Author : Jim Litster
Publisher : Cambridge University Press
ISBN 13 : 1107007372
Total Pages : 343 pages
Book Rating : 4.1/5 (7 download)

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Book Synopsis Design and Processing of Particulate Products by : Jim Litster

Download or read book Design and Processing of Particulate Products written by Jim Litster and published by Cambridge University Press. This book was released on 2016-10-20 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique text providing comprehensive coverage of fundamental particle science, processing and technology. Including quantitative tools, real-world case studies and end-of-chapter problems, it is ideal for students in engineering and applied sciences, as well as for practitioners in a range of industries manufacturing particulate products.

Combustion and Gasification in Fluidized Beds

Author : Prabir Basu
Publisher : CRC Press
ISBN 13 : 1420005154
Total Pages : 492 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Combustion and Gasification in Fluidized Beds by : Prabir Basu

Download or read book Combustion and Gasification in Fluidized Beds written by Prabir Basu and published by CRC Press. This book was released on 2006-02-17 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Besides being one of the best Clean Coal Technologies, fluidized beds are also proving to be the most practical option for biomass conversion. Although the technology is well established, the field lacks a comprehensive guide to the design and operating principles of fluidized bed boilers and gasifiers. With more than 30 years of research and indus

Energy Harvesting

Author : Alireza Khaligh
Publisher : CRC Press
ISBN 13 : 1351834029
Total Pages : 529 pages
Book Rating : 4.3/5 (518 download)

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Book Synopsis Energy Harvesting by : Alireza Khaligh

Download or read book Energy Harvesting written by Alireza Khaligh and published by CRC Press. This book was released on 2017-12-19 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Also called energy scavenging, energy harvesting captures, stores, and uses "clean" energy sources by employing interfaces, storage devices, and other units. Unlike conventional electric power generation systems, renewable energy harvesting does not use fossil fuels and the generation units can be decentralized, thereby significantly reducing transmission and distribution losses. But advanced technical methods must be developed to increase the efficiency of devices in harvesting energy from environmentally friendly, "green" resources and converting them into electrical energy. Recognizing this need, Energy Harvesting: Solar, Wind, and Ocean Energy Conversion Systems describes various energy harvesting technologies, different topologies, and many types of power electronic interfaces for stand-alone utilization or grid connection of energy harvesting applications. Along with providing all the necessary concepts and theoretical background, the authors develop simulation models throughout the text to build a practical understanding of system analysis and modeling. With a focus on solar energy, the first chapter discusses the I−V characteristics of photovoltaic (PV) systems, PV models and equivalent circuits, sun tracking systems, maximum power point tracking systems, shading effects, and power electronic interfaces for grid-connected and stand-alone PV systems. It also presents sizing criteria for applications and modern solar energy applications, including residential, vehicular, naval, and space applications. The next chapter reviews different types of wind turbines and electrical machines as well as various power electronic interfaces. After explaining the energy generation technologies, optimal operation principles, and possible utilization techniques of ocean tidal energy harvesting, the book explores near- and offshore approaches for harvesting the kinetic and potential energy of ocean waves. It also describes the required absorber, turbine, and generator types, along with the power electronic interfaces for grid connection and commercialized ocean wave energy conversion applications. The final chapter deals with closed, open, and hybrid-cycle ocean thermal energy conversion systems.

Circulating Fluidized Beds

Author : J.R. Grace
Publisher : Springer Science & Business Media
ISBN 13 : 9400900953
Total Pages : 599 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Circulating Fluidized Beds by : J.R. Grace

Download or read book Circulating Fluidized Beds written by J.R. Grace and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the late 1970s there has been an explosion of industrial and academic interest in circulating fluidized beds. In part, the attention has arisen due to the environmental advantages associated with CFB (circulating . fluidized bed) combustion systems, the incorporation of riser reactors employing cir culating fluidized bed technology in petroleum refineries for fluid catalytic cracking and, to a lesser extent, the successes of CFB technology for calcina tion reactions and Fischer-Tropsch synthesis. In part, it was also the case that too much attention had been devoted to bubbling fluidized beds and it was time to move on to more complex and more advantageous regime,S of operation. Since 1980 a number of CFB processes have been commercialized. There have been five successful International Circulating Fluidized Bed Confer ences beginning in 1985, the most recent taking place in Beijing in May 1996. In addition, we have witnessed a host of other papers on CFB funda mentals and applications in journals and other archival publications. There have also been several review papers and books on specific CFB topics. However, there has been no comprehensive book reviewing the field and attempting to provide an overview of both fundamentals and applications. The purpose of this book is to fill this vacuum.

Physics in Food Manufacturing

Author : Megan Povey
Publisher :
ISBN 13 : 9780750325974
Total Pages : 248 pages
Book Rating : 4.3/5 (259 download)

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Book Synopsis Physics in Food Manufacturing by : Megan Povey

Download or read book Physics in Food Manufacturing written by Megan Povey and published by . This book was released on 2020-06-12 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first authoritative text on the role that physicists play in solving the inherently multidisciplinary science and technology challenges in food manufacturing. Topics range from designing safe, nutritious and great-tasting foods to the process technology and manufacturing know-how needed to deliver compelling product innovation. The book provides a foundational resource for the transformation of engineering and materials characterisation in the food and pharmaceuticals industries. It is an essential reference for interdisciplinary physical scientists, food/nutrition scientists and engineers working in academic research, government labs and industry, and it is also a valuable resource for R&D staff and product engineers working for suppliers of specialist instrumentation and equipment to the food processing industry. The book is augmented by complementary presentations from the Fourth IOP Physics in Food Manufacturing Conference 2020, held in Leeds, UK. Key Features The first authoritative account of the diverse role that physics and physicists play in the food processing industry. A go-to reference source for anyone wishing to become involved in food processing - science, technology, engineering. Expert accounts by leading academics and industrial scientists.

Fluidization

Author : J. F. Davidson
Publisher : CUP Archive
ISBN 13 : 9780521219433
Total Pages : 430 pages
Book Rating : 4.2/5 (194 download)

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Book Synopsis Fluidization by : J. F. Davidson

Download or read book Fluidization written by J. F. Davidson and published by CUP Archive. This book was released on 1978-04-20 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Dictionary of Mining, Mineral, and Related Terms

Author : United States. Bureau of Mines
Publisher :
ISBN 13 :
Total Pages : 1284 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis A Dictionary of Mining, Mineral, and Related Terms by : United States. Bureau of Mines

Download or read book A Dictionary of Mining, Mineral, and Related Terms written by United States. Bureau of Mines and published by . This book was released on 1968 with total page 1284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes about 55,000 individual mining and mineral industry term entries with about 150,000 definitions under these terms.

Fox and McDonald's Introduction to Fluid Mechanics

Author : Philip J. Pritchard
Publisher : John Wiley & Sons
ISBN 13 : 1118921879
Total Pages : 786 pages
Book Rating : 4.1/5 (189 download)

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Book Synopsis Fox and McDonald's Introduction to Fluid Mechanics by : Philip J. Pritchard

Download or read book Fox and McDonald's Introduction to Fluid Mechanics written by Philip J. Pritchard and published by John Wiley & Sons. This book was released on 2016-05-23 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fox & McDonald’s Introduction to Fluid Mechanics 9th Edition has been one of the most widely adopted textbooks in the field. This highly-regarded text continues to provide readers with a balanced and comprehensive approach to mastering critical concepts, incorporating a proven problem-solving methodology that helps readers develop an orderly plan to finding the right solution and relating results to expected physical behavior. The ninth edition features a wealth of example problems integrated throughout the text as well as a variety of new end of chapter problems.