Fluid Dynamics of Turbulent Fluidized Beds for Geldart’s Group B Particles

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Publisher : Cuvillier Verlag
ISBN 13 : 3736965710
Total Pages : 200 pages
Book Rating : 4.7/5 (369 download)

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Book Synopsis Fluid Dynamics of Turbulent Fluidized Beds for Geldart’s Group B Particles by : Tom Wytrwat

Download or read book Fluid Dynamics of Turbulent Fluidized Beds for Geldart’s Group B Particles written by Tom Wytrwat and published by Cuvillier Verlag. This book was released on 2022-02-15 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: An in-depth experimental study of the fluid dynamics of turbulent fluidized beds with particles of Geldart’s Group B was carried out. For this purpose, fluidization behavior was investigated in different fluidized bed plants having diameters in the range of 0.05 m to 1 m. Pressure fluctuation analysis has been used as an identification tool for the turbulent fluidized bed regime. Different fluidization conditions have been investigated by variation of the fluidized bed properties, the bed material properties, and the gas properties. Based on the measured data, a correlation predicting the transition velocity from bubbling to turbulent fluidization is introduced. To investigate the local flow structure, capacitance probe measurements have been carried out. Using this measurement technique, local solids concentrations and properties of rising bubbles have been determined and analyzed. Finally, an empiric fluid dynamic model was developed using the local measurement data. It is mainly based on capacitance probe measurements and shows high accuracy in comparison to pressure data.

Fluid Dynamics of Turbulent Fluidized Beds for Geldart's Group B Particles

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Publisher : SPE-Schriftenreihe 20
ISBN 13 : 9783736975712
Total Pages : 200 pages
Book Rating : 4.9/5 (757 download)

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Book Synopsis Fluid Dynamics of Turbulent Fluidized Beds for Geldart's Group B Particles by : Tom Wytrwat

Download or read book Fluid Dynamics of Turbulent Fluidized Beds for Geldart's Group B Particles written by Tom Wytrwat and published by SPE-Schriftenreihe 20. This book was released on 2022-02-15 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: An in-depth experimental study of the fluid dynamics of turbulent fluidized beds with particles of Geldart's Group B was carried out. For this purpose, fluidization behavior was investigated in different fluidized bed plants having diameters in the range of 0.05 m to 1 m. Pressure fluctuation analysis has been used as an identification tool for the turbulent fluidized bed regime. Different fluidization conditions have been investigated by variation of the fluidized bed properties, the bed material properties, and the gas properties. Based on the measured data, a correlation predicting the transition velocity from bubbling to turbulent fluidization is introduced. To investigate the local flow structure, capacitance probe measurements have been carried out. Using this measurement technique, local solids concentrations and properties of rising bubbles have been determined and analyzed. Finally, an empiric fluid dynamic model was developed using the local measurement data. It is mainly based on capacitance probe measurements and shows high accuracy in comparison to pressure data.

Role of Mathematical Modeling in Advanced Power Generation Systems

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Publisher : Frontiers Media SA
ISBN 13 : 2832538800
Total Pages : 153 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Role of Mathematical Modeling in Advanced Power Generation Systems by : Arijit Ganguli

Download or read book Role of Mathematical Modeling in Advanced Power Generation Systems written by Arijit Ganguli and published by Frontiers Media SA. This book was released on 2023-11-13 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy demands throughout the globe has been increasing and the detrimental effects of carbon emissions on the environment by use of non-renewable resources has impacted life on the planet. The changing climate has caused an increase in natural calamities all over the globe. Many countries in the world have started to produce power using renewable resources like solar, biomass, wind energy, nuclear energy and green fuels. Though there are several technologies for power generation using the above sources, efficient design of these systems still needs lot of research. Mathematical modeling would play a vital role in design of state of the art technologies. Advanced nuclear power plants need special mention since they involve naturally driven safety systems where the complex phenomena of boiling, condensation and thermal stratification take place. These are difficult to model as there is more than one phase coupled with turbulence models, near wall phenomena, coalescence and break up, etc. Scaling up of such systems and their innovative design to reduce stratification requires the help of mathematical modeling. Other opportunities include Computational Fluid Dynamics (CFD) modeling for design of wind turbines for power generation using wind energy. Power generation from biomass involves use of gasifiers which has complex set of reactions and mostly two or three phases which are difficult to model using CFD at industrial scales.

Fluidized-Bed Reactors: Processes and Operating Conditions

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Publisher : Springer
ISBN 13 : 3319395939
Total Pages : 214 pages
Book Rating : 4.3/5 (193 download)

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Book Synopsis Fluidized-Bed Reactors: Processes and Operating Conditions by : John G. Yates

Download or read book Fluidized-Bed Reactors: Processes and Operating Conditions written by John G. Yates and published by Springer. This book was released on 2016-09-27 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fluidized-bed reactor is the centerpiece of industrial fluidization processes. This book focuses on the design and operation of fluidized beds in many different industrial processes, emphasizing the rationale for choosing fluidized beds for each particular process. The book starts with a brief history of fluidization from its inception in the 1940’s. The authors present both the fluid dynamics of gas-solid fluidized beds and the extensive experimental studies of operating systems and they set them in the context of operating processes that use fluid-bed reactors. Chemical engineering students and postdocs as well as practicing engineers will find great interest in this book.

Fluidization Engineering

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Publisher : Elsevier
ISBN 13 : 008050664X
Total Pages : 520 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Fluidization Engineering by : D. Kunii

Download or read book Fluidization Engineering written by D. Kunii and published by Elsevier. This book was released on 2013-10-22 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluidization Engineering, Second Edition, expands on its original scope to encompass these new areas and introduces reactor models specifically for these contacting regimes. Completely revised and updated, it is essentially a new book. Its aim is to distill from the thousands of studies those particular developments that are pertinent for the engineer concerned with predictive methods, for the designer, and for the user and potential user of fluidized beds. - Covers the recent advances in the field of fluidization. - Presents the studies of developments necessary to the engineers, designers, and users of fluidized beds.

Essentials of Fluidization Technology

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Publisher : John Wiley & Sons
ISBN 13 : 3527340645
Total Pages : 626 pages
Book Rating : 4.5/5 (273 download)

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Book Synopsis Essentials of Fluidization Technology by : John R. Grace

Download or read book Essentials of Fluidization Technology written by John R. Grace and published by John Wiley & Sons. This book was released on 2020-06-15 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise and clear treatment of the fundamentals of fluidization, with a view to its applications in the process and energy industries.

Coal and Biomass Gasification

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Publisher : Springer
ISBN 13 : 981107335X
Total Pages : 524 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Coal and Biomass Gasification by : Santanu De

Download or read book Coal and Biomass Gasification written by Santanu De and published by Springer. This book was released on 2017-12-13 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the science and technology of the gasification process and the production of electricity, synthetic fuels and other useful chemicals. Pursuing a holistic approach, it covers the fundamentals of gasification and its various applications. In addition to discussing recent advances and outlining future directions, it covers advanced topics such as underground coal gasification and chemical looping combustion, and describes the state-of-the-art experimental techniques, modeling and numerical simulations, environmentally friendly approaches, and technological challenges involved. Written in an easy-to-understand format with a comprehensive glossary and bibliography, the book offers an ideal reference guide to coal and biomass gasification for beginners, engineers and researchers involved in designing or operating gasification plants.

Essentials of Fluidization Technology

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 352769949X
Total Pages : 626 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Essentials of Fluidization Technology by : John R. Grace

Download or read book Essentials of Fluidization Technology written by John R. Grace and published by John Wiley & Sons. This book was released on 2020-03-19 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise and clear treatment of the fundamentals of fluidization, with a view to its applications in the process and energy industries.

Computational Fluid Dynamics (CFD) of Chemical Processes

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Publisher : MDPI
ISBN 13 : 3039439332
Total Pages : 114 pages
Book Rating : 4.0/5 (394 download)

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Book Synopsis Computational Fluid Dynamics (CFD) of Chemical Processes by : Young-Il Lim

Download or read book Computational Fluid Dynamics (CFD) of Chemical Processes written by Young-Il Lim and published by MDPI. This book was released on 2021-02-22 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Special Issue, one review paper highlights the necessity of multiscale CFD, coupling micro- and macro-scales, for exchanging information at the interface of the two scales. Four research papers investigate the hydrodynamics, heat transfer, and chemical reactions of various processes using Eulerian CFD modeling. CFD models are attractive for industrial applications. However, substantial efforts in physical modeling and numerical implementation are still required before their widespread implementation.

Handbook of Fluidization and Fluid-Particle Systems

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Publisher : CRC Press
ISBN 13 : 0203912748
Total Pages : 876 pages
Book Rating : 4.2/5 (39 download)

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Book Synopsis Handbook of Fluidization and Fluid-Particle Systems by : Wen-Ching Yang

Download or read book Handbook of Fluidization and Fluid-Particle Systems written by Wen-Ching Yang and published by CRC Press. This book was released on 2003-03-19 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference details particle characterization, dynamics, manufacturing, handling, and processing for the employment of multiphase reactors, as well as procedures in reactor scale-up and design for applications in the chemical, mineral, petroleum, power, cement and pharmaceuticals industries. The authors discuss flow through fixed beds, elutriation and entrainment, gas distributor and plenum design in fluidized beds, effect of internal tubes and baffles, general approaches to reactor design, applications for gasifiers and combustors, dilute phase pneumatic conveying, and applications for chemical production and processing. This is a valuable guide for chemists and engineers to use in their day-to-day work.

Advanced Fluid Dynamics

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Publisher : BoD – Books on Demand
ISBN 13 : 9535102702
Total Pages : 286 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Advanced Fluid Dynamics by : Hyoung Woo Oh

Download or read book Advanced Fluid Dynamics written by Hyoung Woo Oh and published by BoD – Books on Demand. This book was released on 2012-03-09 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a broad range of topics on fluid dynamics for advanced scientists and professional researchers. The text helps readers develop their own skills to analyze fluid dynamics phenomena encountered in professional engineering by reviewing diverse informative chapters herein.

Modeling Approaches and Computational Methods for Particle-laden Turbulent Flows

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Publisher : Academic Press
ISBN 13 : 0323901344
Total Pages : 588 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Modeling Approaches and Computational Methods for Particle-laden Turbulent Flows by : Shankar Subramaniam

Download or read book Modeling Approaches and Computational Methods for Particle-laden Turbulent Flows written by Shankar Subramaniam and published by Academic Press. This book was released on 2022-10-20 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modelling Approaches and Computational Methods for Particle-laden Turbulent Flows introduces the principal phenomena observed in applications where turbulence in particle-laden flow is encountered while also analyzing the main methods for analyzing numerically. The book takes a practical approach, providing advice on how to select and apply the correct model or tool by drawing on the latest research. Sections provide scales of particle-laden turbulence and the principal analytical frameworks and computational approaches used to simulate particles in turbulent flow. Each chapter opens with a section on fundamental concepts and theory before describing the applications of the modelling approach or numerical method. Featuring explanations of key concepts, definitions, and fundamental physics and equations, as well as recent research advances and detailed simulation methods, this book is the ideal starting point for students new to this subject, as well as an essential reference for experienced researchers. - Provides a comprehensive introduction to the phenomena of particle laden turbulent flow - Explains a wide range of numerical methods, including Eulerian-Eulerian, Eulerian-Lagrange, and volume-filtered computation - Describes a wide range of innovative applications of these models

Thermal Power Plants

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Publisher : BoD – Books on Demand
ISBN 13 : 1789230780
Total Pages : 171 pages
Book Rating : 4.7/5 (892 download)

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Book Synopsis Thermal Power Plants by : Paweł Madejski

Download or read book Thermal Power Plants written by Paweł Madejski and published by BoD – Books on Demand. This book was released on 2018-05-02 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: The demand for electricity and heat production is still largely covered by conventional thermal power plants based on fossil fuel combustion. Thermal power stations face a big challenge to meet the environmental requirements constantly keeping high process efficiency and avoiding lifetime shortening of critical components. In recent years, many activities have been observed to reduce pollutant emissions and optimize performance in thermal power plants. Increased share of renewable sources of energy in domestic markets enforces flexible operation and fast adjustment to actual demand. Gas power plants start to play a very important role in this process, allowing for rapid change of load and emission reduction. Operation under changing load together with keeping emissions at the accurate level requires constantly introducing new solutions and technologies as well as carrying out many research and development activities for optimization of the electricity and heat production process. The edited book is aimed to present new technologies, innovative solutions, measurement techniques, tools and computational methods dedicated to thermal power plants in the light of new trends and challenges.

Fluid Bed Technology in Materials Processing

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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

Multiphase Catalytic Reactors

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Publisher : John Wiley & Sons
ISBN 13 : 1119248469
Total Pages : 399 pages
Book Rating : 4.1/5 (192 download)

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Book Synopsis Multiphase Catalytic Reactors by : Zeynep Ilsen Önsan

Download or read book Multiphase Catalytic Reactors written by Zeynep Ilsen Önsan and published by John Wiley & Sons. This book was released on 2016-06-09 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a holistic approach to multiphase catalytic reactors from their modeling and design to their applications in industrial manufacturing of chemicals Covers theoretical aspects and examples of fixed-bed, fluidized-bed, trickle-bed, slurry, monolith and microchannel reactors Includes chapters covering experimental techniques and practical guidelines for lab-scale testing of multiphase reactors Includes mathematical content focused on design equations and empirical relationships characterizing different multiphase reactor types together with an assortment of computational tools Involves detailed coverage of multiphase reactor applications such as Fischer-Tropsch synthesis, fuel processing for fuel cells, hydrotreating of oil fractions and biofuels processing

Handbook of Fluid Dynamics

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Publisher : CRC Press
ISBN 13 : 1439849579
Total Pages : 1544 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Handbook of Fluid Dynamics by : Richard W. Johnson

Download or read book Handbook of Fluid Dynamics written by Richard W. Johnson and published by CRC Press. This book was released on 2016-04-06 with total page 1544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Fluid Dynamics offers balanced coverage of the three traditional areas of fluid dynamics—theoretical, computational, and experimental—complete with valuable appendices presenting the mathematics of fluid dynamics, tables of dimensionless numbers, and tables of the properties of gases and vapors. Each chapter introduces a different fluid dynamics topic, discusses the pertinent issues, outlines proven techniques for addressing those issues, and supplies useful references for further research. Covering all major aspects of classical and modern fluid dynamics, this fully updated Second Edition: Reflects the latest fluid dynamics research and engineering applications Includes new sections on emerging fields, most notably micro- and nanofluidics Surveys the range of numerical and computational methods used in fluid dynamics analysis and design Expands the scope of a number of contemporary topics by incorporating new experimental methods, more numerical approaches, and additional areas for the application of fluid dynamics Handbook of Fluid Dynamics, Second Edition provides an indispensable resource for professionals entering the field of fluid dynamics. The book also enables experts specialized in areas outside fluid dynamics to become familiar with the field.

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

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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.