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Download or read book Tightly Coupled Neutronics and Thermal-hydraulics Using Open-source Software written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Maxime Guyot
Publisher :
ISBN 13 :
Total Pages : 239 pages
Book Rating : 4.:/5 (931 download)
Download or read book Neutronics and Thermal-hydraulics Coupling written by Maxime Guyot and published by . This book was released on 2014 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project is dedicated to the analysis and the quantification of bias corresponding to the computational methodology for simulating the initiating phase of severe accidents on Sodium Fast Reactors. A deterministic approach is carried out to assess the consequences of a severe accident by adopting best estimate design evaluations. An objective of this deterministic approach is to provide guidance to mitigate severe accident developments and recriticalities through the implementation of adequate design measures. These studies are generally based on modern simulation techniques to test and verify a given design. The new approach developed in this project aims to improve the safety assessment of Sodium Fast Reactors by decreasing the bias related to the deterministic analysis of severe accident scenarios.During the initiating phase, the subassembly wrapper tubes keep their mechanical integrity. Material disruption and dispersal is primarily one-dimensional. For this reason, evaluation methodology for the initiating phase relies on a multiple-channel approach. Typically a channel represents an average pin in a subassembly or a group of similar subassemblies. Inthe multiple-channel approach, the core thermal-hydraulics model is composed of 1 or 2 D channels. The thermal-hydraulics model is coupled to a neutronics module to provide an estimate of the reactor power level.In this project, a new computational model has been developed to extend the initiating phase modeling. This new model is based on a multi-physics coupling. This model has been applied to obtain information unavailable up to now in regards to neutronics and thermal-hydraulics models and their coupling.
Author : Christophe Demazière
Publisher : Academic Press
ISBN 13 : 012815070X
Total Pages : 370 pages
Book Rating : 4.1/5 (281 download)
Download or read book Modelling of Nuclear Reactor Multi-physics written by Christophe Demazière and published by Academic Press. This book was released on 2019-11-19 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modelling of Nuclear Reactor Multiphysics: From Local Balance Equations to Macroscopic Models in Neutronics and Thermal-Hydraulics is an accessible guide to the advanced methods used to model nuclear reactor systems. The book addresses the frontier discipline of neutronic/thermal-hydraulic modelling of nuclear reactor cores, presenting the main techniques in a generic manner and for practical reactor calculations.The modelling of nuclear reactor systems is one of the most challenging tasks in complex system modelling, due to the many different scales and intertwined physical phenomena involved. The nuclear industry as well as the research institutes and universities heavily rely on the use of complex numerical codes. All the commercial codes are based on using different numerical tools for resolving the various physical fields, and to some extent the different scales, whereas the latest research platforms attempt to adopt a more integrated approach in resolving multiple scales and fields of physics. The book presents the main algorithms used in such codes for neutronic and thermal-hydraulic modelling, providing the details of the underlying methods, together with their assumptions and limitations. Because of the rapidly expanding use of coupled calculations for performing safety analyses, the analysists should be equally knowledgeable in all fields (i.e. neutron transport, fluid dynamics, heat transfer).The first chapter introduces the book’s subject matter and explains how to use its digital resources and interactive features. The following chapter derives the governing equations for neutron transport, fluid transport, and heat transfer, so that readers not familiar with any of these fields can comprehend the book without difficulty. The book thereafter examines the peculiarities of nuclear reactor systems and provides an overview of the relevant modelling strategies. Computational methods for neutron transport, first at the cell and assembly levels, then at the core level, and for one-/two-phase flow transport and heat transfer are treated in depth in respective chapters. The coupling between neutron transport solvers and thermal-hydraulic solvers for coarse mesh macroscopic models is given particular attention in a dedicated chapter. The final chapter summarizes the main techniques presented in the book and their interrelation, then explores beyond state-of-the-art modelling techniques relying on more integrated approaches. Covers neutron transport, fluid dynamics, and heat transfer, and their interdependence, in one reference Analyses the emerging area of multi-physics and multi-scale reactor modelling Contains 71 short videos explaining the key concepts and 77 interactive quizzes allowing the readers to test their understanding
Author : Thomas Schulenberg
Publisher : KIT Scientific Publishing
ISBN 13 : 3866448171
Total Pages : 258 pages
Book Rating : 4.8/5 (664 download)
Download or read book High Performance Light Water Reactor written by Thomas Schulenberg and published by KIT Scientific Publishing. This book was released on 2014-07-28 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of the project "High Performance Light Water Reactor--Phase 2," carried out September 2006-February 2010 as part of the 6th European Framework Program.
Download or read book Accuracy and Efficiency of a Coupled Neutronics and Thermal Hydraulics Model written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The accuracy requirements for modern nuclear reactor simulation are steadily increasing due to the cost and regulation of relevant experimental facilities. Because of the increase in the cost of experiments and the decrease in the cost of simulation, simulation will play a much larger role in the design and licensing of new nuclear reactors. Fortunately as the work load of simulation increases, there are better physics models, new numerical techniques, and more powerful computer hardware that will enable modern simulation codes to handle the larger workload. This manuscript will discuss a numerical method where the six equations of two-phase flow, the solid conduction equations, and the two equations that describe neutron diffusion and precursor concentration are solved together in a tightly coupled, nonlinear fashion for a simplified model of a nuclear reactor core. This approach has two important advantages. The first advantage is a higher level of accuracy. Because the equations are solved together in a single nonlinear system, the solution is more accurate than the traditional "operator split" approach where the two-phase flow equations are solved first, the heat conduction is solved second and the neutron diffusion is solved third, limiting the temporal accuracy to 1st order because the nonlinear coupling between the physics is handled explicitly. The second advantage of the method described in this manuscript is that the time step control in the fully implicit system can be based on the timescale of the solution rather than a stability-based time step restriction like the material Courant. Results are presented from a simulated control rod movement and a rod ejection that address temporal accuracy for the fully coupled solution and demonstrate how the fastest timescale of the problem can change between the state variables of neutronics, conduction and two-phase flow during the course of a transient.
Author : E. C. Verkerk
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (246 download)
Download or read book Coupling Thermal Hydraulics with Neutronics for Pebble-bed High Temperature Reactor Calculations written by E. C. Verkerk and published by . This book was released on 1998 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Neutronics/thermal-hydraulics coupling in LWR technology : CRISSUE-S : 5th EURATOM Framework Programme (1998-2002) written by and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 : 9789264020856
Total Pages : pages
Book Rating : 4.0/5 (28 download)
Download or read book Neutronics/thermal-hydraulics Coupling in LWR Technology written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yoshiaki Oka
Publisher : Springer Science & Business Media
ISBN 13 : 1441960341
Total Pages : 664 pages
Book Rating : 4.4/5 (419 download)
Download or read book Super Light Water Reactors and Super Fast Reactors written by Yoshiaki Oka and published by Springer Science & Business Media. This book was released on 2010-07-01 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Super Light Water Reactors and Super Fast Reactors provides an overview of the design and analysis of nuclear power reactors. Readers will gain the understanding of the conceptual design elements and specific analysis methods of supercritical-pressure light water cooled reactors. Nuclear fuel, reactor core, plant control, plant stand-up and stability are among the topics discussed, in addition to safety system and safety analysis parameters. Providing the fundamentals of reactor design criteria and analysis, this volume is a useful reference to engineers, industry professionals, and graduate students involved with nuclear engineering and energy technology.
Author : Harald Breitkreutz
Publisher :
ISBN 13 :
Total Pages : 323 pages
Book Rating : 4.:/5 (729 download)
Download or read book Coupled Neutronics and Thermal Hydraulics of High Density Cores for FRM II written by Harald Breitkreutz and published by . This book was released on 2011 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 : 9789264020849
Total Pages : pages
Book Rating : 4.0/5 (28 download)
Download or read book Neutronics/Thermal-Hydraylics Couping in LWR Technology written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Salah Ud-Din Khan
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659501357
Total Pages : 128 pages
Book Rating : 4.5/5 (13 download)
Download or read book Neutronics and Thermal Hydraulic Properties of Small PWR Core written by Salah Ud-Din Khan and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the developing strategy of nuclear industry throughout the world, small modular nuclear reactor is of great advantage. Besides of its basic function of generating electricity, it has many other industrial functions, such as hydrogen production, industrial heat supply and sea water desalination, which can take good use of ideal electricity and heat source. So the research on reactor core analysis of small reactor is of great importance.In this book, the independent designed small integral reactor is studied. In this reactor hexagonal fuel assembly and plate type control rod is used. So the reactor has compact core, large heat transfer area and high power density. In this book, the coupling between Neutron Kinetics and Thermal Hydraulics is completed and was taken to do the thermal hydraulic analysis of reactor core. The coupling between NK/TH evaluate the thermal feedback effects which is used to simulate the accident scenarios. This techniques involves core spatial power distribution and feedback effect between the two phenomenon. We researched some of the accidents by considering the NK/TH coupling technique and have been included in this book.
Author : Joaquín Rubén Basualdo Perelló
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (122 download)
Download or read book Development of a Coupled Neutronics/thermal-hydraulics/fuel Thermo-mechanics Multiphysics Tool for Best-estimate PWR Core Simulations written by Joaquín Rubén Basualdo Perelló and published by . This book was released on 2020* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lelio Luzzi
Publisher : Nova Novinka
ISBN 13 : 9781614700005
Total Pages : 0 pages
Book Rating : 4.7/5 ( download)
Download or read book Multi-physics Approach to the Modelling and Analysis of Molten Salt Reactors written by Lelio Luzzi and published by Nova Novinka. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multi-Physics Modelling (MPM) is an innovative simulation technique that looks very promising for the employment in the field of nuclear engineering as an integrative analysis support in the design development of current and innovative nuclear reactors. This book presents a Multi-Physics Modelling (MPM) approach to the analysis of nuclear reactor core behaviour, developed to study the coupling between neutronics and thermo-hydrodynamics. Reference is made to the Molten Salt Reactor, one of the innovative nuclear systems under development in the framework of the Generation IV International Forum, but the same methodology can be applied to other reactor systems.
Author : G. B. Folland
Publisher : American Mathematical Soc.
ISBN 13 : 0821847902
Total Pages : 447 pages
Book Rating : 4.8/5 (218 download)
Download or read book Fourier Analysis and Its Applications written by G. B. Folland and published by American Mathematical Soc.. This book was released on 2009 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the theory and applications of Fourier series and integrals, eigenfunction expansions, and related topics, on a level suitable for advanced undergraduates. It includes material on Bessel functions, orthogonal polynomials, and Laplace transforms, and it concludes with chapters on generalized functions and Green's functions for ordinary and partial differential equations. The book deals almost exclusively with aspects of these subjects that are useful in physics and engineering, and includes a wide variety of applications. On the theoretical side, it uses ideas from modern analysis to develop the concepts and reasoning behind the techniques without getting bogged down in the technicalities of rigorous proofs.
Author : Neil E. Todreas
Publisher : CRC Press
ISBN 13 : 1351030493
Total Pages : 927 pages
Book Rating : 4.3/5 (51 download)
Download or read book Nuclear Systems Volume I written by Neil E. Todreas and published by CRC Press. This book was released on 2021-01-11 with total page 927 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers rigorous coverage of nuclear power generation fundamentals. Provides description and analysis of the latest nuclear power plant designs and technologies. Includes extensive examples in each chapter to illustrate the analysis methods, which are also presented. Includes program code to demonstrate computer analysis of nuclear power generation. Provides an integration of fluid flow and heat transfer, as applied to single- and two-phase coolants.
Author : Neil E. Todreas
Publisher : CRC Press
ISBN 13 : 0415802873
Total Pages : 1037 pages
Book Rating : 4.4/5 (158 download)
Download or read book Nuclear Systems written by Neil E. Todreas and published by CRC Press. This book was released on 2012 with total page 1037 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear power is in the midst of a generational change—with new reactor designs, plant subsystems, fuel concepts, and other information that must be explained and explored—and after the 2011 Japan disaster, nuclear reactor technologies are, of course, front and center in the public eye. Written by leading experts from MIT, Nuclear Systems Volume I: Thermal Hydraulic Fundamentals, Second Edition provides an in-depth introduction to nuclear power, with a focus on thermal hydraulic design and analysis of the nuclear core. A close examination of new developments in nuclear systems, this book will help readers—particularly students—to develop the knowledge and design skills required to improve the next generation of nuclear reactors. Includes a CD-ROM with Extensive Tables for Computation Intended for experts and senior undergraduate/early-stage graduate students, the material addresses: Different types of reactors Core and plant performance measures Fission energy generation and deposition Conservation equations Thermodynamics Fluid flow Heat transfer Imparting a wealth of knowledge, including their longtime experience with the safety aspects of nuclear installations, authors Todreas and Kazimi stress the integration of fluid flow and heat transfer, various reactor types, and energy source distribution. They cover recent nuclear reactor concepts and systems, including Generation III+ and IV reactors, as well as new power cycles. The book features new chapter problems and examples using concept parameters, and a solutions manual is available with qualifying course adoption.
