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Author:
Publisher:
ISBN:
Category : Nuclear engineering
Languages : en
Pages : 608
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Book Description
Author:
Publisher:
ISBN:
Category : Nuclear engineering
Languages : en
Pages : 608
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Book Description
Author: Christopher R Gould
Publisher: World Scientific
ISBN: 9814490768
Category : Science
Languages : en
Pages : 268
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Book Description
Low energy neutron beams are used to address many questions in nuclear physics, particle physics and astrophysics. The scientific issues include elucidating the nature of time reversal noninvariance; understanding the origin of the baryon asymmetry in the Universe; describing the weak interaction between quarks and between nucleons; understanding the origin of the elements in stellar and big bang nucleosynthesis.This book summarizes how spallation neutron sources work and discuss the advantages of pulsed beams in reducing systematic errors in precision measurements. It also describes recent breakthroughs in ultracold neutron production, together with the physics that will be addressed by the new generation of intense neutron sources.
Author: Behram N. Kursunogammalu
Publisher: Springer Science & Business Media
ISBN: 1461513235
Category : Science
Languages : en
Pages : 226
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Book Description
The first part of the conference explores two major environmental concerns that arise from fuel use: (1) the prospect that the globe will become warmer as a result of emissions of carbon dioxide, and (2) the effect upon health of the fine particles emitted as combustion products. The conference focused on the fact that there was lack of data direct enough to enable us to predict an entirely satisfactory result, and that makes policy options particularly difficult. With regard to (1) above, in the second half of the 20th century there were major increases in anthropogenic C02 emissions, and it is generally agreed that these were responsible for an increase in C02 concentrations. But the relationship between global temperature and CO2 concentrations remains murky. The principal problem is that water vapor is a more important greenhouse gas than C02 and that the concentrations of water vapor vary widely in time and space. The approach to this problem is probably, but not certainly, a positive feedback effect: as temperature increases so does the water vapor leading to further temperature increases. Scientists associated with the Intergovernmental Panel on Climate Change (IPCC) tend to believe the general features of the models. Other scientists are often less convinced.
Author:
Publisher:
ISBN:
Category : Nuclear engineering
Languages : en
Pages : 902
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Book Description
Author: Nikolay Ivanov Kolev
Publisher: Springer Science & Business Media
ISBN: 3540929185
Category : Technology & Engineering
Languages : en
Pages : 761
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Book Description
The nuclear thermal hydraulic is the science providing knowledge about the physical processes occurring during the transferring the fission heat released in structural materials due to nuclear reactions into its environment. Along its way to the environment the thermal energy is organized to provide useful mechanical work or useful heat or both. Chapter 1 contains introductory information about the heat release in the re- tor core, the thermal power and thermal power density in the fuel, structures and moderator, the influence of the thermal power density on the coolant temperature, the spatial distribution of the thermal power density. Finally some measures are introduced for equalizing of the spatial distribution of the thermal power density. Chapter 2 gives the methods for describing of the steady and of the transient temperature fields in the fuel elements. Some information is provided regarding influence of the cladding oxidation, hydrogen diffusion and of the corrosion pr- uct deposition on the temperature fields. Didactically the nuclear thermal hydraulic needs introductions at different level of complexity by introducing step by step the new features after the previous are clearly presented. The followed two Chapters serve this purpose. Chapter 3 describes mathematically the “simple” steady boiling flow in a pipe. The steady mass-, momentum- and energy conservation equations are solved at different level of complexity by removing one after the other simplifying assu- tions. First the idea of mechanical and thermodynamic equilibrium is introduced.
Author: J. Radhakrishnan
Publisher: Springer Nature
ISBN: 3031038304
Category : Technology & Engineering
Languages : en
Pages : 202
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Book Description
This book covers the fundamentals of different laser-based manufacturing and processing, namely laser shock peening, laser micromachining, laser cleaning, cladding, remelting, laser honing, and other several aspects of lasers. The book discusses the general laser interaction with different materials. The application of laser-based post-processing of additive manufacturing and repair engineering is reported. It also provides the reader with mechanism of lasers in manufacturing and recent developments in tools, technologies, controls, and operations.
Author: Nikolay Ivanov Kolev
Publisher: Springer Science & Business Media
ISBN: 3540698337
Category : Technology & Engineering
Languages : en
Pages : 789
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Book Description
Multi-phase flows are part of our natural environment such as tornadoes, typhoons, air and water pollution and volcanic activities as well as part of industrial technology such as power plants, combustion engines, propulsion systems, or chemical and biological industry. The industrial use of multi-phase systems requires analytical and numerical strategies for predicting their behavior. In its third extended edition this monograph contains theory, methods and practical experience for describing complex transient multi-phase processes in arbitrary geometrical configurations, providing a systematic presentation of the theory and practice of numerical multi-phase fluid dynamics. In the present first volume the fundamentals of multiphase dynamics are provided. This third edition includes various updates, extensions and improvements in all book chapters.
Author: Romney Duffey
Publisher: Elsevier
ISBN: 0080509738
Category : Business & Economics
Languages : en
Pages : 259
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Book Description
We live in a technological world, exposed to many risks and errors and the fear of death. Know the Risk shows us how we can learn from the many errors and tragic accidents which have plagued our developing technological world.This breakthrough volume presents a new concept and theory that shows how errors can and should be analyzed so that learning and experience are accounted for. The authors show that, by using a universal learning curve, errors can be tracked and managed so that they are reduced to the smallest number possible.The authors have devoted a number of years to gathering data, analyzing theories relating to error reduction, design improvement, management of errors and assignment of cause. The analyzed data relates to millions of errors. They find a common thread between all technology-related accidents and link all of these errors (from the headline stories to the everyday accidents). They challenge the reader to take a different look at the stream of threats, risks, dangers, statistics and errors by presenting a new perspective. The book makes use of detailed illustrations and explores many headline accidents which highlight human weaknesses in harnessing and exploiting the technology we have developed; from the Titanic to Chernobyl, Bhopal to Concorde, the Mary Rose to the Paddington rail crash and examine errors over which we have little or no control. By analyzing the vast data society has collected, the authors show how the famous accidents and our everyday risks are related.The authors prove the strength of their observations by comparing their findings to the recorded history of tragedies, disasters, accidents and incidents in chemical, airline, shipping, rail, automobile, nuclear, medical, industrial and manufacturing technologies. They also address the management of Quality and losses in production, the search for zero defects and the avoidance of personal risk and danger.Stresses the importance of a learning environment for safety improvementPlaces both quality and safety management in the same learning contextLearn how to track and manage errors to reduce as quickly as possible
Author: Dietrich, Philipp
Publisher: KIT Scientific Publishing
ISBN: 3731506033
Category :
Languages : en
Pages : 160
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Book Description
Author: Nikolay Ivanov Kolev
Publisher: Springer Science & Business Media
ISBN: 3642206018
Category : Technology & Engineering
Languages : en
Pages : 839
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Book Description
The present Volume 5 of the successful book package "Multiphase Flow Dynamics" is devoted to nuclear thermal hydraulics which is a substantial part of nuclear reactor safety. It provides knowledge and mathematical tools for adequate description of the process of transferring the fission heat released in materials due to nuclear reactions into its environment. It step by step introduces into the heat release inside the fuel, temperature fields in the fuels, the "simple" boiling flow in a pipe described using ideas of different complexity like equilibrium, non equilibrium, homogeneity, non homogeneity. Then the "simple" three-fluid boiling flow in a pipe is described by gradually involving the mechanisms like entrainment and deposition, dynamic fragmentation, collisions, coalescence, turbulence. All heat transfer mechanisms are introduced gradually discussing their uncertainty. Different techniques are introduced like boundary layer treatments or integral methods. Comparisons with experimental data at each step demonstrate the success of the different ideas and models. After an introduction of the design of the reactor pressure vessels for pressurized and boiling water reactors the accuracy of the modern methods is demonstrated using large number of experimental data sets for steady and transient flows in heated bundles. Starting with single pipe boiling going through boiling in the rod bundles the analysis of complete vessel including the reactor is finally demonstrated. Then a powerful method for nonlinear stability analysis of flow boiling and condensation is introduced. Models are presented and their accuracies are investigated for describing critical multiphase flow at different level of complexity. Basics of designing of steam generators, moisture separators and emergency condensers are presented. Methods for analyzing a complex pipe network flows with components like pumps, valves etc. are also presented. Methods for analysis of important aspects of the severe accidents like melt-water interactions, external cooling and cooling of layers of molten nuclear reactor material are presented. Valuable sets of thermo-physical and transport properties for severe accident analysis are presented for the following materials: uranium dioxide, zirconium dioxide, stainless steel, zirconium, aluminum, aluminum oxide, silicon dioxide, iron oxide, molybdenum, boron oxide, reactor corium, sodium, lead, bismuth, and lead-bismuth eutectic alloy. The emphasis is on the complete and consistent thermo dynamical sets of analytical approximations appropriate for computational analysis. Therefore the book presents a complete coverage of the modern Nuclear Thermal Hydrodynamics. This present second edition includes various updates, extensions, improvements and corrections. This present second edition includes various updates, extensions, improvements and corrections.
