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Multiphase Flow Analysis Using Population Balance Modeling

Multiphase Flow Analysis Using Population Balance Modeling
  • Author : Guan Heng Yeoh,Dr. Chi Pok Cheung,Jiyuan Tu
  • Publisher :Unknown
  • Release Date :2013-08-19
  • Total pages :384
  • ISBN : 9780080982335
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Summary : Written by leading multiphase flow and CFD experts, this book enables engineers and researchers to understand the use of PBM and CFD frameworks. Population balance approaches can now be used in conjunction with CFD, effectively driving more efficient and effective multiphase flow processes. Engineers familiar with standard CFD software, including ANSYS-CFX and ANSYS–Fluent, will be able to use the tools and approaches presented in this book in the effective research, modeling and control of multiphase flow problems. Builds a complete understanding of the theory behind the application of population balance models and an appreciation of the scale-up of computational fluid dynamics (CFD) and population balance modeling (PBM) to a variety of engineering and industry applications in chemical, pharmaceutical, energy and petrochemical sectors The tools in this book provide the opportunity to incorporate more accurate models in the design of chemical and particulate based multiphase processes Enables readers to translate theory to practical use with CFD software

Multiphase Particulate Systems in Turbulent Flows

Multiphase Particulate Systems in Turbulent Flows
  • Author : Wioletta Podgórska
  • Publisher :Unknown
  • Release Date :2019-09-17
  • Total pages :482
  • ISBN : 9781482235708
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Summary : Multiphase Particulate Systems in Turbulent Flows: Fluid-Liquid and Solid-Liquid Dispersions provides methods necessary to analyze complex particulate systems and related phenomena including physical, chemical and mathematical description of fundamental processes influencing crystal size and shape, suspension rheology, interfacial area of drops and bubbles in extractors and bubble columns. Examples of mathematical model formulation for different processes taking place in such systems is shown. Discussing connections between turbulent mixing mechanisms and precipitation, it discusses influence of fine-scale structure of turbulence, including its intermittent character, on breakage of drops, bubbles, cells, plant cell aggregates. An important aspect of the mathematical modeling presented in the book is multi-fractal, taking into account the influence of internal intermittency on different phenomena. Key Features Provides detailed descriptions of dispersion processes in turbulent flow, interactions between dispersed entities, and continuous phase in a single volume Includes simulation models and validation experiments for liquid-liquid, gas-liquid, and solid-liquid dispersions in turbulent flows Helps reader learn formulation of mathematical models of breakage or aggregation processes using multifractal theory Explains how to solve different forms of population balance equations Presents a combination of theoretical and engineering approaches to particulate systems along with discussion of related diversity, with exercises and case studies

Multiphase reacting flows: modelling and simulation

Multiphase reacting flows: modelling and simulation
  • Author : Daniele L. Marchisio,Rodney O. Fox
  • Publisher :Unknown
  • Release Date :2007-10-16
  • Total pages :269
  • ISBN : 9783211724644
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Summary : This book describes the most widely applicable modeling approaches. Chapters are organized in six groups covering from fundamentals to relevant applications. The book covers particle-based methods and also discusses Eulerian-Eulerian and Eulerian-Lagrangian techniques based on finite-volume schemes. Moreover, the possibility of modeling the poly-dispersity of the secondary phases in Eulerian-Eulerian schemes by solving the population balance equation is discussed.

Bubbly Flows

Bubbly Flows
  • Author : Martin Sommerfeld
  • Publisher :Unknown
  • Release Date :2012-12-06
  • Total pages :351
  • ISBN : 9783642185403
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Summary : The book summarises the outcom of a priority research programme: 'Analysis, Modelling and Computation of Multiphase Flows'. The results of 24 individual research projects are presented. The main objective of the research programme was to provide a better understanding of the physical basis for multiphase gas-liquid flows as they are found in numerous chemical and biochemical reactors. The research comprises steady and unsteady multiphase flows in three frequently found reactor configurations, namely bubble columns without interiors, airlift loop reactors, and aerated stirred vessels. For this purpose new and improved measurement techniques were developed. From the resulting knowledge and data, new and refined models for describing the underlying physical processes were developed, which were used for the establishment and improvement of analytic as well as numerical methods for predicting multiphase reactors. Thereby, the development, lay-out and scale-up of such processes should be possible on a more reliable basis.

Computational Techniques for Multiphase Flows

Computational Techniques for Multiphase Flows
  • Author : Guan Heng Yeoh,Jiyuan Tu
  • Publisher :Unknown
  • Release Date :2009-10-07
  • Total pages :664
  • ISBN : 0080914896
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Summary : Mixed or multiphase flows of solid/liquid or solid/gas are commonly found in many industrial fields, and their behavior is complex and difficult to predict in many cases. The use of computational fluid dynamics (CFD) has emerged as a powerful tool for the understanding of fluid mechanics in multiphase reactors, which are widely used in the chemical, petroleum, mining, food, beverage and pharmaceutical industries. Computational Techniques for Multiphase Flows enables scientists and engineers to the undertand the basis and application of CFD in muliphase flow, explains how to use the technique, when to use it and how to interpret the results and apply them to improving aplications in process enginering and other multiphase application areas including the pumping, automotive and energy sectors. Understandable guide to a complex subject Important in many industries Ideal for potential users of CFD

Chemical Process Design, Simulation and Optimization

Chemical Process Design, Simulation and Optimization
  • Author : Jean-Pierre Corriou,Jean-Claude Assaf
  • Publisher :Unknown
  • Release Date :2021-02-19
  • Total pages :352
  • ISBN : 9783036500966
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Summary : The book presents a series of articles devoted to modeling, simulation, and optimization of processes, mainly chemical. General methods for process modeling and numerical simulation are described with flowsheeting. Population balances are addressed in detail with application to crystal production; energy saving is frequently optimized, including exergy analysis. The coupling between process simulation and computational fluid dynamics is studied for air classification and bubble columns. Pressure swing adsorption, reactive distillation, and nanofiltration are explained in general and applied to particular processes. The synthesis of carbon dots is solved by the design of experiments method. A safety study addresses the consequences of gas explosion.

Optimization of Micro Processes in Fine Particle Agglomeration by Pelleting Flocculation

Optimization of Micro Processes in Fine Particle Agglomeration by Pelleting Flocculation
  • Author : Benjamin Oyegbile
  • Publisher :Unknown
  • Release Date :2016-06-22
  • Total pages :122
  • ISBN : 9781315671871
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Summary : Efficient particle separation in order to meet stringent regulatory standards represent one of the biggest challenges facing the process industry operators today. Emerging environmental problems such as climate change, population growth and natural resource depletion make it more compelling to undertake research into alternative phase separation techniques and optimization of existing ones. Meeting this challenge requires innovative, revolutionary and integrated approach in the design and optimization of various unit processes in fine particle separation. Flocculation is widely used as an effective phase separation technique across many process industries such as water and wastewater treatment and in minerals processing. In this work, a new pre-treatment technique was developed using a patented bench scale reactor unit as a technical proof of concept. Furthermore, the book provides a valuable insight into the hydrodynamics and fluid-particle interactions within the agglomeration units. The relatively high solids content of the stable pellets (approximately 30 %) and very low residual turbidity of the post-sedimentation supernatant (7 NTU) clearly demonstrate the potential of this technique. In addition to significantly improving the subsequent solid-liquid separation efficiency, this study also showed that the effluent can be recycled back into the sewer network or utilized for non-portable reuse. The findings obtained from this research will be extremely useful in the scaling up and optimization of the reactor system.

Dynamics of Multiphase Flows

Dynamics of Multiphase Flows
  • Author : Chao Zhu,Liang-Shih Fan,Zhao Yu
  • Publisher :Unknown
  • Release Date :2021-06-17
  • Total pages :650
  • ISBN : 9781108473743
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Summary : Address physical principles and unified theories governing multiphase flows, with methods, applications, and problems.

Advances in Comminution

Advances in Comminution
  • Author : S. Komar Kawatra
  • Publisher :Unknown
  • Release Date :2006
  • Total pages :557
  • ISBN : 0873352467
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Summary : "The 36 chapters are based on the 2006 SME symposium"--Page 4 de la couverture.

Topics in Multiphase Transport Phenomena

Topics in Multiphase Transport Phenomena
  • Author : Robert W. Lyczkowski,Dimitri Gidaspow
  • Publisher :Unknown
  • Release Date :2020-01-17
  • Total pages :142
  • ISBN : 9781728341620
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Summary : The story of multiphase science and computational fluid dynamics (CFD) has never been documented heretofore. It is a new and by now a rather robust science and one which must be told how it came to be before the founders and key contributors pass on. If any one of an amazing chain of incidents, and coincidences had never happened, multiphase science and CFD would never have evolved and the story this book tells would never have materialized. This book presents my personal recollection tracing the most signal events in the history of the initiation, development, and propagation phases of multiphase science and computational fluid dynamics (CFD) which initiated in 1970.

Computational Fluid Dynamics

Computational Fluid Dynamics
  • Author : Jiyuan Tu,Guan Heng Yeoh,Chaoqun Liu
  • Publisher :Unknown
  • Release Date :2012-11-21
  • Total pages :440
  • ISBN : 9780080982434
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Summary : An introduction to CFD fundamentals and using commercial CFD software to solve engineering problems, designed for the wide variety of engineering students new to CFD, and for practicing engineers learning CFD for the first time. Combining an appropriate level of mathematical background, worked examples, computer screen shots, and step by step processes, this book walks the reader through modeling and computing, as well as interpreting CFD results. The first book in the field aimed at CFD users rather than developers. New to this edition: A more comprehensive coverage of CFD techniques including discretisation via finite element and spectral element as well as finite difference and finite volume methods and multigrid method. Coverage of different approaches to CFD grid generation in order to closely match how CFD meshing is being used in industry. Additional coverage of high-pressure fluid dynamics and meshless approach to provide a broader overview of the application areas where CFD can be used. 20% new content

Advances of Computational Fluid Dynamics in Nuclear Reactor Design and Safety Assessment

Advances of Computational Fluid Dynamics in Nuclear Reactor Design and Safety Assessment
  • Author : Jyeshtharaj Joshi,Arun K. Nayak
  • Publisher :Unknown
  • Release Date :2019-06-09
  • Total pages :888
  • ISBN : 9780081023389
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Summary : Advances of Computational Fluid Dynamics in Nuclear Reactor Design and Safety Assessment presents the latest computational fluid dynamic technologies. It includes an evaluation of safety systems for reactors using CFD and their design, the modeling of Severe Accident Phenomena Using CFD, Model Development for Two-phase Flows, and Applications for Sodium and Molten Salt Reactor Designs. Editors Joshi and Nayak have an invaluable wealth of experience that enables them to comment on the development of CFD models, the technologies currently in practice, and the future of CFD in nuclear reactors. Readers will find a thematic discussion on each aspect of CFD applications for the design and safety assessment of Gen II to Gen IV reactor concepts that will help them develop cost reduction strategies for nuclear power plants. Presents a thematic and comprehensive discussion on each aspect of CFD applications for the design and safety assessment of nuclear reactors Provides an historical review of the development of CFD models, discusses state-of-the-art concepts, and takes an applied and analytic look toward the future Includes CFD tools and simulations to advise and guide the reader through enhancing cost effectiveness, safety and performance optimization

Computational Models for Polydisperse Particulate and Multiphase Systems

Computational Models for Polydisperse Particulate and Multiphase Systems
  • Author : Daniele L. Marchisio,Rodney O. Fox
  • Publisher :Unknown
  • Release Date :2013-03-28
  • Total pages :508
  • ISBN : 9780521858489
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Summary : All-inclusive introduction to polydisperse multiphase flows linking theory to practice through numerous real-world examples and MATLAB scripts for key algorithms.

Computational Methods in Multiphase Flow V

Computational Methods in Multiphase Flow V
  • Author : Andrea Alberto Mammoli,C. A. Brebbia
  • Publisher :Unknown
  • Release Date :2009-01
  • Total pages :522
  • ISBN : 9781845641887
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Summary : Together with turbulence, multiphase flow remains one of the most challenging areas of computational mechanics and experimental methods and numerous problems remain unsolved to date. Multiphase flows are found in all areas of technology, at all length scales and flow regimes. The fluids involved can be compressible or incompressible, linear or nonlinear. Because of the complexity of the problems, it is often essential to utilize advanced computational and experimental methods to solve the complex equations that describe them. Challenges in these simulations include modelling and tracking interfaces, dealing with multiple length scales, modelling nonlinear fluids, treating drop breakup and coalescence, characterizing phase structures, and many others. Experimental techniques, although expensive and difficult to perform, are essential to validate models. This book contains papers presented at the Fifth International Conference on Computational Methods in Multiphase Flow, which are grouped into the following topics: Multiphase Flow Simulation; Interaction of Gas, Liquids and Solids; Turbulent Flow; Environmental Multiphase Flow; Bubble and Drop Dynamics; Flow in Porous Media; Heat Transfer; Image Processing; Interfacial Behaviour.

Population Balances

Population Balances
  • Author : Doraiswami Ramkrishna
  • Publisher :Unknown
  • Release Date :2000-08-08
  • Total pages :355
  • ISBN : 9780080539249
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Summary : Engineers encounter particles in a variety of systems. The particles are either naturally present or engineered into these systems. In either case these particles often significantly affect the behavior of such systems. This book provides a framework for analyzing these dispersed phase systems and describes how to synthesize the behavior of the population particles and their environment from the behavior of single particles in their local environments. Population balances are of key relevance to a very diverse group of scientists, including astrophysicists, high-energy physicists, geophysicists, colloid chemists, biophysicists, materials scientists, chemical engineers, and meteorologists. Chemical engineers have put population balances to most use, with applications in the areas of crystallization; gas-liquid, liquid-liquid, and solid-liquid dispersions; liquid membrane systems; fluidized bed reactors; aerosol reactors; and microbial cultures. Ramkrishna provides a clear and general treatment of population balances with emphasis on their wide range of applicability. New insight into population balance models incorporating random particle growth, dynamic morphological structure, and complex multivariate formulations with a clear exposition of their mathematical derivation is presented. Population Balances provides the only available treatment of the solution of inverse problems essential for identification of population balance models for breakage and aggregation processes, particle nucleation, growth processes, and more. This book is especially useful for process engineers interested in the simulation and control of particulate systems. Additionally, comprehensive treatment of the stochastic formulation of small systems provides for the modeling of stochastic systems with promising new areas of applications such as the design of sterilization systems and radiation treatment of cancerous tumors. A clear and general treatment of population balances with emphasis on their wide range of applicability. Thus all processes involving solid-fluid and liquid-liquid dispersions, biological populations, etc. are encompassed Provides new insight into population balance models incorporating random particle growth, dynamic morphological structure, and complex multivariate formulations with a clear exposition of their mathematical derivation Presents a wide range of solution techniques, Monte Carlo simulation methods with a lucid exposition of their origin and scope for enhancing computational efficiency An account of self-similar solutions of population balance equations and their significance to the treatment of data on particulate systems The only available treatment of the solution of inverse problems essential for identification of population balance models for breakage and aggregation processes, particle nucleation and growth processes and so on A comprehensive treatment of the stochastic formulation of small systems with several new applications

Chemical Reactor Modeling

Chemical Reactor Modeling
  • Author : Hugo A. Jakobsen
  • Publisher :Unknown
  • Release Date :2014-04-02
  • Total pages :1535
  • ISBN : 9783319050928
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Summary : Chemical Reactor Modeling closes the gap between Chemical Reaction Engineering and Fluid Mechanics. The second edition consists of two volumes: Volume 1: Fundamentals. Volume 2: Chemical Engineering Applications In volume 1 most of the fundamental theory is presented. A few numerical model simulation application examples are given to elucidate the link between theory and applications. In volume 2 the chemical reactor equipment to be modeled are described. Several engineering models are introduced and discussed. A survey of the frequently used numerical methods, algorithms and schemes is provided. A few practical engineering applications of the modeling tools are presented and discussed. The working principles of several experimental techniques employed in order to get data for model validation are outlined. The monograph is based on lectures regularly taught in the fourth and fifth years graduate courses in transport phenomena and chemical reactor modeling and in a post graduate course in modern reactor modeling at the Norwegian University of Science and Technology, Department of Chemical Engineering, Trondheim, Norway. The objective of the book is to present the fundamentals of the single-fluid and multi-fluid models for the analysis of single and multiphase reactive flows in chemical reactors with a chemical reactor engineering rather than mathematical bias. Organized into 13 chapters, it combines theoretical aspects and practical applications and covers some of the recent research in several areas of chemical reactor engineering. This book contains a survey of the modern literature in the field of chemical reactor modeling.

Multiphase Flow Phenomena And Applications: Memorial Volume In Honor Of Gad Hetsroni

Multiphase Flow Phenomena And Applications: Memorial Volume In Honor Of Gad Hetsroni
  • Author : Yadigaroglu George,Ziskind Gennady
  • Publisher :Unknown
  • Release Date :2018-02-08
  • Total pages :212
  • ISBN : 9789813227408
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Summary : This volume is dedicated to a very special person, Professor Gad Hetsroni (1934–2015). His towering figure was familiar to researchers in heat transfer and multiphase flow all over the world. He was the founding Editor of the International Journal of Multiphase Flow and the person who defined and promoted the discipline around the journal. The unique community formed in this field during his lifetime gathers every three years for a major conference, the International Conference on Multiphase Flow, that most recent was held in May 2016 in Florence, Italy. This was the first time ever Gad did not attend ICMF. Friends and colleagues from many countries came to Florence to present their personal tributes and scientific papers honoring Gad. Reviewed and edited tributes and scientific papers dedicated to Gad from these memorial sessions comprise the core content of this memorial volume; certain persons who could not participate in the ICMF made later contributions. Contents: Preface Tributes: Gad Hetsroni: Life Story (by Hetsroni family) Gad Hetsroni and the International Journal of Multiphase Flow (by Andrea Prosperetti) Gad Hetsroni (by George Yadigaroglu) Gad Hetsroni (byShimonHabe) Gad Hetsroni (by Geoff Hewitt) My Encounters with Gad Hetsroni (by Gennady Ziskind) Tribute to Prof Gad Hetsroni (by Masahiro Kawaji) Single Phase-Turbulence and Heat Transfer: Extension of Pod Analysis Towards the Three-Dimensional Coherent Structure (R Gurka, A Liberzon and G Hetsroni) Penetration of Turbulent Temperature Fluctuations into the Heated Wall (Iztok Tiselj) Particle-Flow Interaction: Experimental Investigation of the Interaction Between a Stationary Rigid Sphere and a Turbulent Boundary Layer (René van Hout, Jerke Eisma, Edwin Overmars, Gerrit E Elsinga and Jerry Westerweel) Breakup of Individual Colloidal Aggregates in Turbulent Flow Investigated by 3D Particle Tracking Velocimetry (Matthaus U Babler, Alex Liberzon, Debashish Saha, Markus Holzner, Miroslav Soos, Beat Lüthi and Wolfgang Kinzelbach) Gas-Liquid Two-Phase Flows: Structural Stability and Transient Changes of the Liquid Level in Stratified Flow (Yehuda Taitel and Dvora Barnea) Radial Void Fraction Profiles in a Downward Two-Phase Flow: Reconstruction Using the Surface of Revolution Method (Freddy Hernandez-Alvarado, Simon Kleinbart, Dinesh V Kalaga, Sanjoy Banerjee and Masahiro Kawaji) Complex Multiphase Systems: Applying Liquid-Liquid Phase Separation for Enhancing Convective Heat Transfer Rates (A Ullmann, I Lipstein and N Brauner) Scavenging of Soluble Atmospheric Trace Gases Due to Chemical Absorption by Rain Droplets in Inhomogeneous Atmosphere (Tov Elperin, Andrew Fominykh and Boris Krasovitov) Thermal Management on Microscale: Pin-Fin Two-Phase Microgap Coolers for Concentrating Photovoltaic Arrays (A Reeser, A Bar-Cohen, G Hetsroni and A Mosyak) Heat Transfer Characteristics in an Array of Micro-Pin-Fins: Single- and Two-Phase Flow (E Pogrebnyak, B Halachmi and A Mosyak) Experimental and Numerical Investigation of Heat Removal by Microjets (Tomer Rozenfeld, Yingying Wang, Ashwin Kumar Vutha, Jeong-Heon Shin, Gennady Ziskind and Yoav Peles) Readership: Graduate students and professionals interested in the field of heat transfer and multiphase flow. Keywords: Multiphase Flow;Particle-Turbulence Interactions;Micro-Scale Heat Transfer;Therma

Applied Mathematical Modeling

Applied Mathematical Modeling
  • Author : Eetu N. Virtanen
  • Publisher :Unknown
  • Release Date :2008
  • Total pages :349
  • ISBN : 1600219756
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Summary : This new book focuses on important research related to the mathematical modelling of engineering and environmental processes, manufacturing, and industrial systems. It includes heat transfer, fluid mechanics, CFD, and transport phenomena; solid mechanics and mechanics of metals; electromagnets and MHD; reliability modelling and system optimisation; finite volume, finite element, and boundary element procedures; decision sciences in an industrial and manufacturing context; civil engineering systems and structures; mineral and energy resources; relevant software engineering issues associated with CAD and CAE; and materials and metallurgical engineering.

Continuous Casting

Continuous Casting
  • Author : Michael Vynnycky
  • Publisher :Unknown
  • Release Date :2019-07-30
  • Total pages :250
  • ISBN : 9783039213214
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Summary : Continuous casting is an industrial process whereby molten metal is solidified into a semi-finished billet, bloom, or slab for subsequent rolling in finishing mills; it is the most frequently used process to cast not only steel, but also aluminium and copper alloys. Since its widespread introduction for steel in the 1950s, it has evolved to achieve improved yield, quality, productivity and cost efficiency. It allows lower-cost production of metal sections with better quality, due to the inherently lower costs of continuous, standardized production of a product, as well as providing increased control over the process through automation. Nevertheless, challenges remain and new ones appear, as ways are sought to minimize casting defects and to cast alloys that could originally only be cast via other means. This Special Issue of the journal "Metals" consists of 14 research articles that cover many aspects of experimental work and theoretical modelling related to the ongoing development of continuous casting processes.

Advanced Nanomaterials for Catalysis and Energy

Advanced Nanomaterials for Catalysis and Energy
  • Author : Vladislav A. Sadykov
  • Publisher :Unknown
  • Release Date :2018-08-27
  • Total pages :587
  • ISBN : 9780128148082
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Summary : Advanced Nanomaterials for Catalysis and Energy: Synthesis, Characterization and Applications outlines new approaches to the synthesis of nanomaterials (synthesis in flow conditions, laser electrodispersion of single metals or alloys on carbon or oxide supports, mechanochemistry, sol-gel routes, etc.) to provide systems with a narrow particle size distribution, controlled metal-support interaction and nanocomposites with uniform spatial distribution of domains of different phases, even in dense sintered materials. Methods for characterization of real structure and surface properties of nanomaterials are discussed, including synchrotron radiation diffraction and X-ray photoelectron spectroscopy studies, neutronography, transmission/scanning electron microscopy with elemental analysis, and more. The book covers the effect of nanosystems' composition, bulk and surface properties, metal-support interaction, particle size and morphology, deposition density, etc. on their functional properties (transport features, catalytic activity and reaction mechanism). Finally, it includes examples of various developed nanostructured solid electrolytes and mixed ionic-electronic conductors as materials in solid oxide fuel cells and asymmetric supported membranes for oxygen and hydrogen separation. Outlines synthetic and characterization methods for nanocatalysts Relates nanocatalysts' properties to their specific applications Proposes optimization methods aiming at specific applications

Nuclear Thermal Hydraulic and Two-Phase Flow

Nuclear Thermal Hydraulic and Two-Phase Flow
  • Author : Jun Wang,Kaiyi Shi,Zhaoming Meng,Shripad T. Revankar
  • Publisher :Unknown
  • Release Date :2018-10-11
  • Total pages :229
  • ISBN : 9782889456123
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Summary : Nuclear energy is one of the most important clear energy and contributes more than 10% electric power to human society in the past decades of years. The nuclear thermal hydraulic and two-phase flow is one of the basic branches of nuclear technology and provides structure design and safety analysis to the nuclear power reactors. In the new century, the basic theoretical research of thermal hydraulic and two-phase flow, and innovative design for the next generation nuclear power plants (especially for the small modular reactor and molten salt reactor), along with other nuclear branches, constantly support the development of nuclear technology.